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Gowrishankar SV, Bidaye R, Das T, Majcher V, Fish B, Casey R, Masterson L. Intrathyroidal parathyroid adenomas: Scoping review on clinical presentation, preoperative localization, and surgical treatment. Head Neck 2023; 45:706-720. [PMID: 36563301 PMCID: PMC10108101 DOI: 10.1002/hed.27287] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/26/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022] Open
Abstract
Intrathyroidal parathyroid adenomas (IPAs) are a rare cause of primary hyperparathyroidism. They are often difficult to localize preoperatively and intraoperatively, making diagnosis and treatment challenging. Current data on IPAs are sparse and fragmented in the literature. This makes it difficult to compare the effectiveness of different imaging and surgical techniques. To address this issue, this scoping review maps the literature on IPAs, focusing on four domains: clinical presentation, current localization methods, different surgical techniques, and histopathological features. A search of MEDLINE, Embase, and the Cochrane Library was conducted, with 19 studies meeting the inclusion criteria. The characteristics of IPAs on ultrasound, fine-needle aspiration, CT, MRI, sestamibi-based techniques, and selective venous sampling are summarized. Emerging imaging modalities, including autofluorescence, are introduced. Surgical methods and intraoperative factors that correlate with high success rates for removal are highlighted. This review also identifies gaps in knowledge to guide further research into this area.
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Affiliation(s)
| | - Rohan Bidaye
- Department of Otolaryngology-Head & Neck Surgery, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Tilak Das
- Department of Neuroradiology and Head & Neck Imaging, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Veronika Majcher
- Department of Neuroradiology and Head & Neck Imaging, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Brian Fish
- Department of Otolaryngology-Head & Neck Surgery, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Ruth Casey
- Department of Endocrinology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Liam Masterson
- Department of Otolaryngology-Head & Neck Surgery, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
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2
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Пылина СВ, Ким ЕИ, Бондаренко ЕВ, Крупинова ЮА, Еремкина АК, Мокрышева НГ. [Casuistic cases of parathyroid carcinoma with a verified mutation in the MEN1 gene]. PROBLEMY ENDOKRINOLOGII 2023; 69:15-27. [PMID: 36842074 PMCID: PMC9978878 DOI: 10.14341/probl13176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/20/2022] [Accepted: 11/05/2022] [Indexed: 02/27/2023]
Abstract
Parathyroid cancer (PTC) is usually sporadic; however, it could be presented as a component of hereditary syndromes. The prevalence of PTC among patients with primary hyperparathyroidism (PHPT) is about 1% cases. The lack of reliable preoperative predictors significantly complicates the diagnosis of PTC. The clinical course is non-specific and in most cases is determined by severe hypercalcemia. The final diagnosis can only be made on the basis of invasive histopathologic features, while an analysis immunohistochemical (IHC) one can be used only as an additional method. Given the rarity the diagnosis of MEN1-related PTC a challenge. We present two clinical cases of patients with PTC and a verified heterozygous mutation in the MEN1 gene. The described cases demonstrate the complexity of morphological diagnosis for PTC, the heterogeneity of clinical manifestations in patients with the MEN1 mutation, as well as the need for timely screening to identify other components of MEN1 syndrome and mutations of the MEN1 gene among first-line relatives.
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Affiliation(s)
- С. В. Пылина
- Национальный медицинский исследовательский центр эндокринологии
| | - Е. И. Ким
- Национальный медицинский исследовательский центр эндокринологии
| | | | - Ю. А. Крупинова
- Национальный медицинский исследовательский центр эндокринологии
| | - А. К. Еремкина
- Национальный медицинский исследовательский центр эндокринологии
| | - Н. Г. Мокрышева
- Национальный медицинский исследовательский центр эндокринологии
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3
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Chen Y, Song A, Nie M, Jiang Y, Li M, Xia W, Wang O, Xing X. Clinical and genetic analysis of atypical parathyroid adenoma compared with parathyroid carcinoma and benign lesions in a Chinese cohort. Front Endocrinol (Lausanne) 2023; 14:1027598. [PMID: 36777354 PMCID: PMC9908593 DOI: 10.3389/fendo.2023.1027598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 01/06/2023] [Indexed: 01/27/2023] Open
Abstract
CONTEXT The malignant potential and molecular signature of atypical parathyroid adenoma (APA) remain elusive. Data from Asia are still lacking. DESIGN AND SETTING This was a retrospective study on a large APA cohort in a single center from mainland China. METHODS A total of 320 patients with primary hyperparathyroidism (PHPT), containing 79 APA, 79 Parathyroid cancer (PC) and 162 benign lesions cases, were enrolled after surgery for collection of clinical data and genetic analysis. RESULTS APA patients showed earlier mean onset age than benign group (46.9 ± 17.1 vs. 52.0 ± 14.3 yrs). Less bone involvement and gastrointestinal symptoms were presented in APA compared to PC (35.4% vs. 62.0%, and 17.7% vs. 41.8%), while more urolithiasis was seen in APA than in benign lesions (57.0% vs. 29.6%). The APA group had moderate hypercalcemia (mean 3.02 ± 0.44mmol/L) with elevated serum PTH (median 593.0pg/ml) and proportion of hypercalcemic crisis as 22.8%, all higher than those of benign lesions but lower than those of PC group. The recurrence/no remission rate of the APA group was significantly lower than that of the PC and similar to the benign group (5.1% vs. 31.6% vs. 3.1%). Germline CDC73 mutation was the most common molecular abnormality in both PC and APA subjects. APA patients with nonsynonymous germline variants showed earlier onset age (28.5 ± 16.9 vs. 48.1 ± 17.7 yrs) and more cases developing no remission/recurrence (25.0% vs. 0.0%). CONCLUSIONS Patients with APA presented clinical and biochemical characteristics much less severe than PC and resembling the benign neoplasms, with a relatively good prognosis. Germline gene variations were associated with earlier onset and probably more recurrence of PHPT in APA.
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Affiliation(s)
| | | | | | | | | | | | - Ou Wang
- *Correspondence: Ou Wang, ; Xiaoping Xing,
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4
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Daniel H, Pillutla P, Schwartz C, Nguyen T. Intrathyroidal Parathyroid Carcinoma: Case Report and Literature Review. EAR, NOSE & THROAT JOURNAL 2022:1455613221093729. [PMID: 35403461 DOI: 10.1177/01455613221093729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Intrathyroidal parathyroid carcinoma (PC) is a rare malignancy that is usually difficult to diagnose. We present a case of a 31-year-old male with a history of hyperparathyroidism who was found to have intrathyroidal PC upon review of immunostains along with a review of the current literature. A systematic review of the literature utilizing the PubMed database identified 24 relevant, full-text articles. 25 cases were analyzed, including our own report. The case of a 31-year-old man with a history of hyperparathyroidism managed with subtotal thyroidectomy and subtotal parathyroidectomy who had persistent hypercalcemia and elevated parathyroid hormone. Abnormal radiotracer uptake was noted in the left thyroid gland. Neck exploration with left parathyroidectomy and revision thyroidectomy was performed. A candidate left inferior parathyroid was found within the left thyroid lobe remnant and identified as parathyroid carcinoma. Immunostains determined an intrathyroidal parathyroid carcinoma. The literature review shows the average presenting age was 50.9 years. 54.17% (CI, 43-82%) of affected patients are female. Right-sided thyroid involvement is seen in 54.17% (CI, 34-74%) of cases. The inferior aspect of the thyroid is involved in 66.67% of cases (CI, 53-89%). Intrathyroidal parathyroid carcinoma is a rare and challenging diagnosis due to similarities with other more common endocrine abnormalities. This review found that the inferior parathyroid is more likely to be located within the thyroid gland. Surgeons may consider aberrant anatomical locations, including intrathyroidal locations, for the inferior parathyroid glands.
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Affiliation(s)
- Hannah Daniel
- Texas Tech University Health Sciences Center School of Medicine, Lubbock, TX, USA
| | - Pranati Pillutla
- Department of Head and Neck Surgery, 8783UCLA, Los Angeles, CA, USA
| | - Cynthia Schwartz
- Department of Otolaryngology-Head and Neck Surgery, 12343Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Tam Nguyen
- Department of Otolaryngology-Head and Neck Surgery, 12343Texas Tech University Health Sciences Center, Lubbock, TX, USA
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5
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Thompson R, Landry CS. Multiple endocrine neoplasia 1: a broad overview. Ther Adv Chronic Dis 2021; 12:20406223211035288. [PMID: 34413971 PMCID: PMC8369854 DOI: 10.1177/20406223211035288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 07/07/2021] [Indexed: 01/10/2023] Open
Abstract
This review article discusses the diagnoses and treatment of patients with multiple endocrine neoplasia type 1 (MEN 1). The most common tumors associated with MEN 1 are located in the pancreas, pituitary, and parathyroid glands. Less common tumors include neuroendocrine tumors of the lung and thymus, adrenal tumors, and cutaneous lesions. This article describes the diagnosis, clinical manifestations, treatment, and surveillance of tumors associated with patients who are diagnosed with MEN 1.
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Affiliation(s)
- Rachel Thompson
- Department of Surgery, Baylor University Medical Center, Dallas, TX, USA
| | - Christine S. Landry
- Department of Surgery, Baylor University Medical Center, Dallas, TX 77030-3411, USA
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6
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Benali K, Aarab J, Benmessaoud H, Nourreddine A, Majjaoui SE, Kacemi HE, Kebdani T, Benjaafar N. Intrathyroidal parathyroid carcinoma: a case report and literature review. Radiat Oncol J 2021; 39:145-151. [PMID: 33857367 PMCID: PMC8497858 DOI: 10.3857/roj.2020.01060] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 02/05/2021] [Indexed: 11/22/2022] Open
Abstract
Parathyroid carcinoma is an uncommon endocrine malignancy comprising 0.5%–2% of patients with primary hyperparathyroidism. The probability of an intrathyroidal location is low (0.2%) and make preoperative suspicion and diagnosis challenging. Less than 20 cases of intrathyroidal parathyroid carcinoma have been reported. We introduce a case of intrathyroidal parathyroid carcinoma mimicking a suspicious thyroid nodule, and review the literature, with a focus on the role of adjuvant radiotherapy.
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Affiliation(s)
- Kenza Benali
- Department of Radiation Oncology, National Institute of Oncology, Rabat, Morocco.,Faculty of Medicine, Mohammed V University, Rabat, Morocco
| | - Jihan Aarab
- Department of Radiation Oncology, National Institute of Oncology, Rabat, Morocco.,Faculty of Medicine, Mohammed V University, Rabat, Morocco
| | - Houda Benmessaoud
- Department of Radiation Oncology, National Institute of Oncology, Rabat, Morocco.,Faculty of Medicine, Mohammed V University, Rabat, Morocco
| | - Abdelati Nourreddine
- Department of Radiation Oncology, National Institute of Oncology, Rabat, Morocco.,Équipe de Science de la Matière et du Rayonnement, Department of Physics, Mohammed V University, Faculty of Science, Rabat, Morocco
| | - Sanaa El Majjaoui
- Department of Radiation Oncology, National Institute of Oncology, Rabat, Morocco.,Faculty of Medicine, Mohammed V University, Rabat, Morocco
| | - Hanan El Kacemi
- Department of Radiation Oncology, National Institute of Oncology, Rabat, Morocco.,Faculty of Medicine, Mohammed V University, Rabat, Morocco
| | - Tayeb Kebdani
- Department of Radiation Oncology, National Institute of Oncology, Rabat, Morocco.,Faculty of Medicine, Mohammed V University, Rabat, Morocco
| | - Noureddine Benjaafar
- Department of Radiation Oncology, National Institute of Oncology, Rabat, Morocco.,Faculty of Medicine, Mohammed V University, Rabat, Morocco
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De Falco N, Santangelo G, Chirico F, Cangiano A, Sommella MG, Cosenza A, Ronchi A, Accardo M, Pellino G, Parmeggiani D, Canonico S, De Falco M. Synchronous intrathyroidal parathyroid carcinoma and thyroid carcinoma: case report and review of the literature. BMC Endocr Disord 2021; 21:60. [PMID: 33827539 PMCID: PMC8028146 DOI: 10.1186/s12902-021-00724-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 03/25/2021] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Parathyroid carcinoma is a rare endocrine malignancy, rarer when synchronous with a non medullary well differentiated thyroid carcinoma. Parathyroid carcinoma accounts of 0.005% of all malignant tumors and it is responsible for less than 1% of primary hyperparathyroidism. The intrathyroidal localization of a parathyroid gland is not frequent with a reported prevalence of 0.2%. Carcinoma of parathyroids with intrathyroidal localization represents an even rarer finding, reported in only 16 cases described in literature. The rare constellation of synchronous parathyroid and thyroid carcinomas has prompted us to report our experience and perform literature review. CASE PRESENTATION We herein report a case of a 63-years-old man with multinodular goiter and biochemical diagnosis of hyperparathyroidism. Total thyroidectomy with radio-guide technique using gamma probe after intraoperative sesta-MIBI administration and intraoperative PTH level was performed. The high radiation levels in the posterior thyroid lobe discovered an intrathyroidal parathyroid. Microscopic examination revealed a parathyroid main cell carcinoma at the posterior thyroidal left basal lobe, a classic papillary carcinoma at the same lobe and follicular variant of papillary carcinoma at the thyroidal right lobe. To the best of our knowledge, this is the first case documenting a synchronous multicentric non medullary thyroid carcinomas and intrathyroidal parathyroid carcinoma. CONCLUSIONS Our experience was reported and literature review underlining challenging difficulties in diagnostic workup and surgical management was carried out.
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Affiliation(s)
- Nadia De Falco
- General Surgery Unit, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 80138, Naples, Italy
| | - Giuseppe Santangelo
- General Surgery Unit, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 80138, Naples, Italy
| | - Fabrizio Chirico
- Maxillofacial Surgery Unit, Federico II University, Naples, Italy
| | - Angelo Cangiano
- General Surgery Unit, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 80138, Naples, Italy
| | - Maria Giulia Sommella
- General Surgery Unit, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 80138, Naples, Italy
| | - Angelo Cosenza
- General Surgery Unit, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 80138, Naples, Italy
| | - Andrea Ronchi
- Division of Morphopathology, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Marina Accardo
- Division of Morphopathology, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Gianluca Pellino
- General Surgery Unit, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 80138, Naples, Italy
| | - Domenico Parmeggiani
- General Surgery Unit, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 80138, Naples, Italy
| | - Silvestro Canonico
- General Surgery Unit, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 80138, Naples, Italy
| | - Massimo De Falco
- General Surgery Unit, Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Piazza Miraglia, 80138, Naples, Italy.
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8
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Poortmans N, Verfaillie G, Unuane D, Raeymaeckers S, Lamote J. Intrathyroidal parathyroid carcinoma presenting as an asymptomatic hypercalcemia: a case report. Acta Chir Belg 2020; 120:433-436. [PMID: 31226907 DOI: 10.1080/00015458.2019.1631626] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
INTRODUCTION A 26-year-old female presented with severe hypercalcemia. She was asymptomatic. Blood analysis revealed high serum calcium (13 mg/dL = 3.25 mmol/L) and elevated intact parathyroid hormone (iPTH) levels (267.5 ng/L). RESULTS Ultrasonography showed a mixed solid-cystic nodule of 30 mm in the left thyroid lower lobe and a nodular lesion of 14 mm posterior of the thyroid upper pole suggestive for parathyroid adenoma. Sestamibi scan and magnetic resonance imaging (MRI) revealed hyperfunctioning parathyroid tissue posterior of the left thyroid upper lobe. During surgery, a 15 mm nodule in the usual location of the left superior parathyroid was resected. Intraoperative frozen section revealed normal parathyroid tissue and intraoperative PTH levels did not decrease. Left thyroidectomy was performed due to the large solid-cystic nodule. Intraoperative PTH levels normalized 10 min later. Pathologic examination revealed a 28 mm nodule in the lower thyroid pole compatible with a parathyroid carcinoma (PC). Due to positive margins, a completion thyroidectomy was performed. 5-year follow-up showed no recurrence. CONCLUSIONS PC is a rare entity comprising 0.5-2% of patients with primary hyperparathyroidism. Even more unusual is an intrathyroidal parathyroid gland (0.2%). Only a dozen cases of intrathyroidal PC have been reported. Our case is the second patient reported to be asymptomatic.
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Affiliation(s)
| | - Guy Verfaillie
- Surgery, Universitair Ziekenhuis Brussel, Jette, Belgium
| | - David Unuane
- Endocrinology, Universitair Ziekenhuis Brussel, Jette, Belgium
| | | | - Jan Lamote
- Surgery, Universitair Ziekenhuis Brussel, Jette, Belgium
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9
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Mele C, Mencarelli M, Caputo M, Mai S, Pagano L, Aimaretti G, Scacchi M, Falchetti A, Marzullo P. Phenotypes Associated With MEN1 Syndrome: A Focus on Genotype-Phenotype Correlations. Front Endocrinol (Lausanne) 2020; 11:591501. [PMID: 33312161 PMCID: PMC7708377 DOI: 10.3389/fendo.2020.591501] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 10/16/2020] [Indexed: 12/21/2022] Open
Abstract
Multiple endocrine neoplasia type 1 (MEN1) is a rare autosomal dominant inherited tumor syndrome, associated with parathyroid, pituitary, and gastro-entero-pancreatic (GEP) neuroendocrine tumors (NETs). MEN1 is usually consequent to different germline and somatic mutations of the MEN1 tumor suppressor gene, although phenocopies have also been reported. This review analyzed main biomedical databases searching for reports on MEN1 gene mutations and focused on aggressive and aberrant clinical manifestations to investigate the potential genotype-phenotype correlation. Despite efforts made by several groups, this link remains elusive to date and evidence that aggressive or aberrant clinical phenotypes may be related to specific mutations has been provided by case reports and small groups of MEN1 patients or families. In such context, a higher risk of aggressive tumor phenotypes has been described in relation to frameshift and non-sense mutations, and predominantly associated with aggressive GEP NETs, particularly pancreatic NETs. In our experience a novel heterozygous missense mutation at c.836C>A in exon 6 was noticed in a MEN1 patient operated for macro-prolactinoma, who progressively developed recurrent parathyroid adenomas, expanding gastrinomas and, long after the first MEN1 manifestation, a neuroendocrine uterine carcinoma. In conclusion, proof of genotype-phenotype correlation is limited but current evidence hints at the need for long-term interdisciplinary surveillance in patients with aggressive phenotypes and genetically confirmed MEN1.
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Affiliation(s)
- Chiara Mele
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
- Istituto Auxologico Italiano, IRCCS, Division of General Medicine, S. Giuseppe Hospital, Piancavallo, Italy
| | - Monica Mencarelli
- Istituto Auxologico Italiano, IRCCS, Laboratory of Molecular Biology, S. Giuseppe Hospital, Piancavallo, Italy
| | - Marina Caputo
- Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
- Division of Endocrinology, University Hospital “Maggiore della Carità”, Novara, Italy
| | - Stefania Mai
- Istituto Auxologico Italiano, IRCCS, Laboratory of Metabolic Research, S. Giuseppe Hospital, Piancavallo, Italy
| | - Loredana Pagano
- Division of Endocrinology, Diabetology and Metabolism, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Gianluca Aimaretti
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
- Division of Endocrinology, University Hospital “Maggiore della Carità”, Novara, Italy
| | - Massimo Scacchi
- Istituto Auxologico Italiano, IRCCS, Division of General Medicine, S. Giuseppe Hospital, Piancavallo, Italy
| | - Alberto Falchetti
- Istituto Auxologico Italiano, IRCCS, Rehabilitation Unit, S. Giuseppe Hospital, Unit for Bone Metabolism Diseases, Verbania, Italy
- Diabetes & Lab of Endocrine and Metabolic Research, Dept. of Clinical Sciences & Community Health, University of Milan, Milan, Italy
| | - Paolo Marzullo
- Department of Translational Medicine, University of Piemonte Orientale, Novara, Italy
- Istituto Auxologico Italiano, IRCCS, Division of General Medicine, S. Giuseppe Hospital, Piancavallo, Italy
- *Correspondence: Paolo Marzullo,
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10
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Song A, Yang Y, Liu S, Nie M, Jiang Y, Li M, Xia W, Wang O, Xing X. Prevalence of Parathyroid Carcinoma and Atypical Parathyroid Neoplasms in 153 Patients With Multiple Endocrine Neoplasia Type 1: Case Series and Literature Review. Front Endocrinol (Lausanne) 2020; 11:557050. [PMID: 33101196 PMCID: PMC7556219 DOI: 10.3389/fendo.2020.557050] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/20/2020] [Indexed: 12/20/2022] Open
Abstract
Purpose: The occurrence of parathyroid carcinoma (PC) and atypical parathyroid neoplasm (APN) in multiple endocrine neoplasia type 1 (MEN1) is rare. The present paper reports the cases of 3 MEN1-PC/APN patients at our center and discusses the prevalence in a Chinese MEN1 cohort. Methods: This report is a retrospective analysis of 153 MEN1-associated primary hyperparathyroidism (MEN1-HPT) patients at our center, which included 3 MEN1-associated PC/APN (MEN1-PC/APN) patients. The clinical manifestations, biochemical indices, pathological findings, and therapy have been summarized along with the report of the genetic testing of the 3 patients. Results: Of the 153 MEN1-HPT patients, 1 (0.7%) was histopathologically diagnosed with PC and 2 (1.3%) with APN. Three heterozygous mutations were identified in the 3 MEN1-PC/APN patients (c.917 T > G, c.431T > C, and c.549 G > C). The cumulative findings of 3 cases with 18 previously reported MEN1-PC/APN cases revealed that the mean serum calcium (Ca) level was 3.15 ± 0.44 mmol/L and the median parathyroid hormone (PTH) level was 327 pg/mL (214.1, 673.1), both of which were significantly higher as compared to the respective levels in non-PC/APN MEN1 patients at our center [Ca: 2.78 mmol/L [2.61, 2.88], PTH: 185.5 pg/mL [108.3, 297.0]; P = 0.0003, 0.0034, respectively]. Conclusion: MEN 1-PC/APN is a rare disease, with a prevalence of only 2.0% among the MEN1-HPT cohort at our center. The affected patients recorded higher serum Ca level and PTH levels than those with MEN1-associated benign tumors. However, the diagnosis of MEN1-PC/APN is based upon pathology most of the times.
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Affiliation(s)
- An Song
- Key Laboratory of Endocrinology, Ministry of Health, Department of Endocrinology, Peking Union Medical College, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Yi Yang
- Key Laboratory of Endocrinology, Ministry of Health, Department of Endocrinology, Peking Union Medical College, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Shuzhong Liu
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Min Nie
- Key Laboratory of Endocrinology, Ministry of Health, Department of Endocrinology, Peking Union Medical College, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Yan Jiang
- Key Laboratory of Endocrinology, Ministry of Health, Department of Endocrinology, Peking Union Medical College, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Mei Li
- Key Laboratory of Endocrinology, Ministry of Health, Department of Endocrinology, Peking Union Medical College, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Weibo Xia
- Key Laboratory of Endocrinology, Ministry of Health, Department of Endocrinology, Peking Union Medical College, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Ou Wang
- Key Laboratory of Endocrinology, Ministry of Health, Department of Endocrinology, Peking Union Medical College, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- *Correspondence: Ou Wang
| | - Xiaoping Xing
- Key Laboratory of Endocrinology, Ministry of Health, Department of Endocrinology, Peking Union Medical College, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
- Xiaoping Xing
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11
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Intrathyroidal Parathyroid Carcinoma in Chronic Kidney Disease: A Case Report and Review of Literature. ACTA ACUST UNITED AC 2019. [DOI: 10.3342/kjorl-hns.2019.00409] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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Hyperparathyroidism Due to Concurrent Parathyroid Carcinoma and Parathyroid Adenoma. Clin Nucl Med 2019; 44:844-847. [DOI: 10.1097/rlu.0000000000002755] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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13
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Zhang R, Meng Z, Zhang Y, Wang P, Tan J. VISUAL VIGNETTE. Endocr Pract 2019; 25:980-981. [PMID: 30865537 DOI: 10.4158/ep-2019-0003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Ruiguo Zhang
- From the Department of Nuclear Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Zhaowei Meng
- From the Department of Nuclear Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Yujie Zhang
- Department of Pathology, Tianjin Medical University General Hospital, Tianjin, China
| | - Peng Wang
- From the Department of Nuclear Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Jian Tan
- From the Department of Nuclear Medicine, Tianjin Medical University General Hospital, Tianjin, China
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14
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Cristina EV, Alberto F. Management of familial hyperparathyroidism syndromes: MEN1, MEN2, MEN4, HPT-Jaw tumour, Familial isolated hyperparathyroidism, FHH, and neonatal severe hyperparathyroidism. Best Pract Res Clin Endocrinol Metab 2018; 32:861-875. [PMID: 30665551 DOI: 10.1016/j.beem.2018.09.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
While primary hyperparathyroidism (PHPT) generally represents a common endocrine disorder, being the more frequent cause of hypercalcemia in outpatients, familial forms of PHPT (FPHPT) account for no more than 2-5% of the overall PHPT. In the last decades, many technical progresses in both molecular and biochemical-radiological evaluation have been made, and substantial advancements in understanding these disorders have been reached. Differences both in the pathogenesis and clinical presentation exist among the various hyperparathyroid syndromic forms, and, since FPHPT is frequently associated to other endocrine, proliferative and/or functional disorders, as also non-endocrine tumours, with varying clinical spectrum of occurrence in each syndrome, its early clinically detection for appropriately preventing complications (i.e. kidney and bone disorders) is strictly advised. In this review, the clinical-biochemical features and diagnostic procedures of each FPHPT form will be summarized and a general overview on surgical and pharmacological approaches to FPHPT has been also considered.
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MESH Headings
- Diagnosis, Differential
- Diagnostic Techniques, Endocrine
- Humans
- Hypercalcemia/diagnosis
- Hypercalcemia/etiology
- Hypercalcemia/therapy
- Hyperparathyroidism, Primary/complications
- Hyperparathyroidism, Primary/congenital
- Hyperparathyroidism, Primary/diagnosis
- Hyperparathyroidism, Primary/therapy
- Infant, Newborn, Diseases/diagnosis
- Infant, Newborn, Diseases/therapy
- Jaw Neoplasms/complications
- Jaw Neoplasms/diagnosis
- Jaw Neoplasms/therapy
- Multiple Endocrine Neoplasia/complications
- Multiple Endocrine Neoplasia/diagnosis
- Multiple Endocrine Neoplasia/therapy
- Multiple Endocrine Neoplasia Type 1/complications
- Multiple Endocrine Neoplasia Type 1/diagnosis
- Multiple Endocrine Neoplasia Type 1/therapy
- Multiple Endocrine Neoplasia Type 2a/complications
- Multiple Endocrine Neoplasia Type 2a/diagnosis
- Multiple Endocrine Neoplasia Type 2a/therapy
- Syndrome
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Affiliation(s)
| | - Falchetti Alberto
- EndOsMet, Endocrinology and Metabolic Bone Diseases Branch, Villa Donatello Private Hospital, Firenze, Italy; Endocrinology, Villa Alba Clinic, Villa Maria Group, Bologna, Italy.
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15
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Pal R, Bhadada SK, Dutta P, Behera A, Talukder S, Saikia UN, Mitra S, Kaur G, Bhansali A. Ectopic Atypical Parathyroid Neoplasm in a Patient With Multiple Endocrine Neoplasia Type I. AACE Clin Case Rep 2018. [DOI: 10.4158/accr-2018-0002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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16
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Di Meo G, Sgaramella LI, Ferraro V, Prete FP, Gurrado A, Testini M. Parathyroid carcinoma in multiple endocrine neoplasm type 1 syndrome: case report and systematic literature review. Clin Exp Med 2018; 18:585-593. [DOI: 10.1007/s10238-018-0512-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 06/10/2018] [Indexed: 12/18/2022]
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17
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Omi Y, Horiuchi K, Haniu K, Tokura M, Nagai E, Isozaki O, Nagashima Y, Okamoto T. Parathyroid carcinoma occurred in two glands in multiple endocrine neoplasia 1: a report on a rare case. Endocr J 2018; 65:245-252. [PMID: 29225207 DOI: 10.1507/endocrj.ej17-0409] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Primary hyperparathyroidism is the most common hormonal manifestation associated with multiple endocrine neoplasia 1 (MEN1). It is generally caused by parathyroid hyperplasia, and parathyroid carcinoma is rare. Here, we report a case of MEN1 with parathyroid carcinoma in two parathyroid glands causing primary hyperparathyroidism. A 40-year-old man with primary hyperparathyroidism due to MEN1 underwent a total parathyroidectomy. His corrected calcium and intact PTH (i-PTH) serum levels were 10.8 mg/dL and 203 pg/mL, respectively. Although three glands were successfully removed, the left upper parathyroid gland could not be detected. Since the right lower parathyroid lesion had invaded into the thyroid, right lobectomy was performed. A portion of the left lower parathyroid tissue was transplanted into his forearm. The histological findings of the left lower and the right upper parathyroid glands were consistent with hyperplasia while that of the right lower parathyroid gland was parathyroid carcinoma. Since the post-surgical i-PTH levels remained high, the intrathyroidal lesion of the left lobe, which was initally diagnosed as an adenomatous nodule, was suspected to contain parathyroid tumor. A fine needle aspiration of the tumor revealed a high concentration of i-PTH. One week after the first surgery, a left thyroid lobectomy was performed. The pathological diagnosis of the tumor was parathyroid carcinoma. After the surgery, calcium and i-PTH levels were normal. Although it is rare, parathyroid carcinoma should be considered as a cause of hyperparathyroidism in MEN1 patients. Since it is difficult to diagnose parathyroid carcinoma before surgery, intraoperative findings are important for the appropriate treatment.
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Affiliation(s)
- Yoko Omi
- Department of Breast and Endocrine Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Kiyomi Horiuchi
- Department of Breast and Endocrine Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Kento Haniu
- Department of Breast and Endocrine Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Momoko Tokura
- Department of Breast and Endocrine Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Erin Nagai
- Department of Breast and Endocrine Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Osamu Isozaki
- Department of Medicine II, Tokyo Women's Medical University, Tokyo, Japan
| | - Yoji Nagashima
- Department of Surgical Pathology, Tokyo Women's Medical University, Tokyo, Japan
| | - Takahiro Okamoto
- Department of Breast and Endocrine Surgery, Tokyo Women's Medical University, Tokyo, Japan
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18
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Alharbi N, Asa SL, Szybowska M, Kim RH, Ezzat S. Intrathyroidal Parathyroid Carcinoma: An Atypical Thyroid Lesion. Front Endocrinol (Lausanne) 2018; 9:641. [PMID: 30455668 PMCID: PMC6230986 DOI: 10.3389/fendo.2018.00641] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 10/09/2018] [Indexed: 12/24/2022] Open
Abstract
Parathyroid carcinoma is a rare endocrine malignancy that is typically difficult to diagnose at presentation. Here, we report a 63 year-old man who had symptomatic hypercalcemia. Investigations revealed a thyroid nodule and a lateral neck mass that was biopsied and diagnosed as "suspicious for a neuroendocrine neoplasm." He underwent total thyroidectomy with central and left neck node dissection. Histology and immunohistochemistry revealed an intrathyroidal angioinvasive parathyroid carcinoma with lymph node metastases. The tumor showed loss of parafibromin expression; germline testing revealed no pathogenic germline variants of CDC73, suggesting either a cryptic germline variant or a sporadic malignancy. Multiple pulmonary nodules consistent with metastatic disease explained persistent hypercalcemia and the patient was treated with denosumab as well as Sorafenib resulting in early regression of the lung nodules. This case illustrates an unusual parathyroid carcinoma with respect to anatomic presentation and the importance of complete pathological workup in securing the diagnosis. The management of these rare malignancies is discussed.
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Affiliation(s)
- Noran Alharbi
- Department of Internal Medicine and Endocrinology, Prince Mohammed bin Abdulaziz Hospital, Riyadh, Saudi Arabia
- Department of Medicine, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Sylvia L. Asa
- Department of Pathology, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Marta Szybowska
- Fred A Litwin Family Centre in Genetic Medicine, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Raymond H. Kim
- Department of Medicine, University Health Network, University of Toronto, Toronto, ON, Canada
- Fred A Litwin Family Centre in Genetic Medicine, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Shereen Ezzat
- Department of Medicine, University Health Network, University of Toronto, Toronto, ON, Canada
- *Correspondence: Shereen Ezzat
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19
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Cardoso L, Stevenson M, Thakker RV. Molecular genetics of syndromic and non-syndromic forms of parathyroid carcinoma. Hum Mutat 2017; 38:1621-1648. [PMID: 28881068 PMCID: PMC5698716 DOI: 10.1002/humu.23337] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 08/21/2017] [Accepted: 09/04/2017] [Indexed: 12/23/2022]
Abstract
Parathyroid carcinoma (PC) may occur as part of a complex hereditary syndrome or an isolated (i.e., non-syndromic) non-hereditary (i.e., sporadic) endocrinopathy. Studies of hereditary and syndromic forms of PC, which include the hyperparathyroidism-jaw tumor syndrome (HPT-JT), multiple endocrine neoplasia types 1 and 2 (MEN1 and MEN2), and familial isolated primary hyperparathyroidism (FIHP), have revealed some genetic mechanisms underlying PC. Thus, cell division cycle 73 (CDC73) germline mutations cause HPT-JT, and CDC73 mutations occur in 70% of sporadic PC, but in only ∼2% of parathyroid adenomas. Moreover, CDC73 germline mutations occur in 20%-40% of patients with sporadic PC and may reveal unrecognized HPT-JT. This indicates that CDC73 mutations are major driver mutations in the etiology of PCs. However, there is no genotype-phenotype correlation and some CDC73 mutations (e.g., c.679_680insAG) have been reported in patients with sporadic PC, HPT-JT, or FIHP. Other genes involved in sporadic PC include germline MEN1 and rearranged during transfection (RET) mutations and somatic alterations of the retinoblastoma 1 (RB1) and tumor protein P53 (TP53) genes, as well as epigenetic modifications including DNA methylation and histone modifications, and microRNA misregulation. This review summarizes the genetics and epigenetics of the familial syndromic and non-syndromic (sporadic) forms of PC.
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Affiliation(s)
- Luís Cardoso
- Department of EndocrinologyDiabetes and MetabolismCentro Hospitalar e Universitário de CoimbraPraceta Prof Mota PintoCoimbraPortugal
- Radcliffe Department of MedicineAcademic Endocrine UnitOxford Centre for DiabetesEndocrinology and MetabolismUniversity of OxfordOxfordUnited Kingdom
| | - Mark Stevenson
- Radcliffe Department of MedicineAcademic Endocrine UnitOxford Centre for DiabetesEndocrinology and MetabolismUniversity of OxfordOxfordUnited Kingdom
| | - Rajesh V. Thakker
- Radcliffe Department of MedicineAcademic Endocrine UnitOxford Centre for DiabetesEndocrinology and MetabolismUniversity of OxfordOxfordUnited Kingdom
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20
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van Leeuwaarde RS, de Laat JM, Pieterman CRC, Dreijerink K, Vriens MR, Valk GD. The future: medical advances in MEN1 therapeutic approaches and management strategies. Endocr Relat Cancer 2017; 24:T179-T193. [PMID: 28768698 DOI: 10.1530/erc-17-0225] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 08/01/2017] [Indexed: 12/21/2022]
Abstract
Multiple endocrine neoplasia type 1 is a rare autosomal inherited disorder associated with a high risk for patients to simultaneously develop tumors of the parathyroid glands, duodenopancreatic neuroendocrine tumors and tumors of the anterior pituitary gland. Early identification of MEN1 in patients enables presymptomatic screening of manifestations, which makes timely interventions possible with the intention to prevent morbidity and mortality. Causes of death nowadays have shifted toward local or metastatic progression of malignant neuroendocrine tumors. In early cohorts, complications like peptic ulcers in gastrinoma, renal failure in hyperparathyroidism, hypoglycemia and acute hypercalcemia were the primary causes of early mortality. Improved medical treatments of these complications led to a significantly improved life expectancy. The MEN1 landscape is still evolving, considering the finding of breast cancer as a new MEN1-related manifestation and ongoing publications on follow-up and medical care for patients with MEN1. This review aims at summarizing the most recent insights into the follow-up and medical care for patients with MEN1 and identifying the gaps for future research.
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Affiliation(s)
| | - Joanne M de Laat
- Department of Endocrine OncologyUniversity Medical Center Utrecht, Utrecht, The Netherlands
| | - Carolina R C Pieterman
- Department of Endocrine OncologyUniversity Medical Center Utrecht, Utrecht, The Netherlands
| | - Koen Dreijerink
- Department of Endocrine OncologyUniversity Medical Center Utrecht, Utrecht, The Netherlands
| | - Menno R Vriens
- Department of Endocrine SurgeryUniversity Medical Center Utrecht, Utrecht, The Netherlands
| | - Gerlof D Valk
- Department of Endocrine OncologyUniversity Medical Center Utrecht, Utrecht, The Netherlands
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21
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Shawky MS, Meyer-Rochow W. Aberrant Intrathyroid Tissue: a Report of Intrathyroid Lymph Node Metastasis and a Review of Literature. Indian J Surg 2017; 79:148-152. [PMID: 28442842 PMCID: PMC5386949 DOI: 10.1007/s12262-017-1594-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 01/13/2017] [Indexed: 11/28/2022] Open
Abstract
Aberrant histological elements have been infrequently reported to exist within the intact thyroid gland. In addition to distant metastases to the thyroid, a number of ectopic tissue rests and unusual cysts have been described within the thyroid gland. In this article, we report the presence of a true intrathyroid lymph node and describe the first reported case of intrathyroid lymph node metastasis of papillary thyroid cancer. Other reported aberrant intrathyroid tissues, possible pathophysiology, diagnostic features and surgical implications are also discussed.
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Affiliation(s)
| | - Win Meyer-Rochow
- Department of Surgery, Waikato Hospital, Hamilton, New Zealand
- Waikato Clinical Campus, Faculty of Medical and Health Science, University of Auckland, Auckland, New Zealand
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22
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Christakis I, Busaidy NL, Cote GJ, Williams MD, Hyde SM, Silva Figueroa AM, Kwatampora LJ, Clarke CN, Qiu W, Lee JE, Perrier ND. Parathyroid carcinoma and atypical parathyroid neoplasms in MEN1 patients; A clinico-pathologic challenge. The MD Anderson case series and review of the literature. Int J Surg 2016; 31:10-6. [DOI: 10.1016/j.ijsu.2016.05.035] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 03/22/2016] [Accepted: 05/15/2016] [Indexed: 10/21/2022]
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23
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Singh Ospina N, Sebo TJ, Thompson GB, Clarke BL, Young WF. Prevalence of parathyroid carcinoma in 348 patients with multiple endocrine neoplasia type 1 - case report and review of the literature. Clin Endocrinol (Oxf) 2016; 84:244-249. [PMID: 25557532 DOI: 10.1111/cen.12714] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 11/25/2014] [Accepted: 12/27/2014] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To report the prevalence of parathyroid carcinoma (PC) in patients with multiple endocrine neoplasia type 1 (MEN1) and review of the literature. BACKGROUND Primary hyperparathyroidism (PHP) is the most common manifestation of MEN1. The occurrence of PC in patients with MEN1 is rare and the literature regarding the clinical manifestations - including the prevalence of the disease - is scarce. CONTEXT Single tertiary care centre experience from 1977 to 2013. DESIGN Electronic search of the medical records to identify a cohort of patients with MEN1. Literature review based on current case reports. PATIENTS Single case of PC in a cohort of 348 patients with MEN1. Ten cases of PC in patients with MEN1 reported in the literature. MEASUREMENT Clinical features of PC in patients with MEN1. RESULTS The prevalence of PC in 348 patients with MEN1 was found to be 0·28% (95% CI, 0-1·4%). Based on the current published cases of PC in patients with MEN1, 54·5% were women, mean age at diagnosis was 48·3 years, and the serum PTH concentrations at least four times the upper limit of the reference range in 73% of the cases. CONCLUSION PC in patients with MEN 1 is rare with a prevalence of 0·28%, and the clinical features are similar to PC in patients without MEN1.
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Affiliation(s)
- Naykky Singh Ospina
- Division of Endocrinology, Diabetes, Metabolism and Nutrition, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Thomas J Sebo
- Division of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Geoffrey B Thompson
- Section of Endocrine Surgery, Department of Surgery, Mayo Clinic, Rochester, MN, USA
| | - Bart L Clarke
- Division of Endocrinology, Diabetes, Metabolism and Nutrition, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - William F Young
- Division of Endocrinology, Diabetes, Metabolism and Nutrition, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
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