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Guadagno E, D'Avella E, Cappabianca P, Colao A, Del Basso De Caro M. Ki67 in endocrine neoplasms: to count or not to count, this is the question! A systematic review from the English language literature. J Endocrinol Invest 2020; 43:1429-1445. [PMID: 32415572 DOI: 10.1007/s40618-020-01275-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 04/23/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Endocrine neoplasms are generally slow-growing tumors that can show hormonal activity and give metastases. In most cases they are benign and clearly malignant forms are easy to diagnose. However, borderline forms may occur and be, for the pathologists, very difficult to classify. In these cases, there is a strong need to identify factors that may aid. Official classification systems for endocrine neoplasms are based on the evaluation of proliferation and, in most cases, they rely on mitotic count. In support, the study of Ki67 is carried out which, however, has not yet been included in any official classification system, except for neuroendocrine neoplasms of the gastro-entero-pancreatic tract. PURPOSE The aim of the present study was to investigate the proven or unproven role of Ki67 in endocrine neoplasms, in different districts, in order to bring to light the substantial differences, in terms of proliferation, existing between neoplasms so similar, but at the same time, so different. METHODS A thorough search of English language literature was performed, looking for articles concerning Ki67 in five endocrine neoplasms (pituitary adenomas, thyroid neoplasms, adrenocortical neoplasms, pheochromocytomas and paragangliomas). RESULTS From 2170, 236 articles were selected and it was seen that the endocrine neoplasm in which Ki67 was most studied was the pituitary, where it still shows a controversial role. In other neoplasms different roles were identified. CONCLUSION The pathologist should be aware of the contribution that this proliferative marker can give to the diagnosis and, sometimes, to the therapy selection, for the clinician.
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Affiliation(s)
- E Guadagno
- Pathology Section, Department of Advanced Biomedical Sciences, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy.
| | - E D'Avella
- Division of Neurosurgery, Department of Neurosciences, Reproductive and Odontostomatological Sciences, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - P Cappabianca
- Division of Neurosurgery, Department of Neurosciences, Reproductive and Odontostomatological Sciences, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - A Colao
- Endocrinology Section, Department of Clinic Medicine and Surgery, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy
| | - M Del Basso De Caro
- Pathology Section, Department of Advanced Biomedical Sciences, "Federico II" University of Naples, Via Pansini 5, 80131, Naples, Italy
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Main AM, Rossing M, Borgwardt L, Grønkær Toft B, Rasmussen ÅK, Feldt-Rasmussen U. Genotype-phenotype associations in PPGLs in 59 patients with variants in SDHX genes. Endocr Connect 2020; 9:793-803. [PMID: 32688340 PMCID: PMC7487185 DOI: 10.1530/ec-20-0279] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 07/19/2020] [Indexed: 12/31/2022]
Abstract
Phaeochromocytomas and paragangliomas (PPGLs) are tumours of the adrenal medulla and extra-adrenal sympathetic nervous system which often secrete catecholamines. Variants of the SDHX (SDHA, -AF2, -B, -C, -D) genes are a frequent cause of familial PPGLs. In this study from a single tertiary centre, we aimed to characterise the genotype-phenotype associations in patients diagnosed with germline variants in SDHX genes. We also assessed whether systematic screening of family members resulted in earlier detection of tumours. The study cohort comprised all individuals (n = 59) diagnosed with a rare variant in SDHX during a 13-year period. Patient- and pathology records were checked for clinical characteristics and histopathological findings. We found distinct differences in the clinical and histopathological characteristics between genetic variants in SDHB. We identified two SDHB variants with distinct phenotypical patterns. Family screening for SDHB variants resulted in earlier detection of tumours in two families. Patients with SDHA, SDHC and SDHD variants also had malignant phenotypes, underlining the necessity for a broad genetic screening of the proband. Our study corroborates previous findings of poor prognostic markers and found that the genetic variants and clinical phenotype are linked and, therefore, useful in the decision of clinical follow-up. Regular tumour screening of carriers of pathogenic variants may lead to an earlier diagnosis and expected better prognosis. The development of a combined algorithm with clinical, genetic, morphological, and biochemical factors may be the future for improved clinical risk stratification, forming a basis for larger multi-centre follow up studies.
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Affiliation(s)
- Ailsa Maria Main
- Department of Medical Endocrinology and Metabolism, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Correspondence should be addressed to A M Main or U Feldt-Rasmussen: or
| | - Maria Rossing
- Center for Genomic Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Line Borgwardt
- Center for Genomic Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Birgitte Grønkær Toft
- Department of Pathology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Åse Krogh Rasmussen
- Department of Medical Endocrinology and Metabolism, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Ulla Feldt-Rasmussen
- Department of Medical Endocrinology and Metabolism, Copenhagen University Hospital, Rigshospitalet, and Faculty of Health, Institute of Clinical and Scientific Research, Copenhagen, Denmark
- Correspondence should be addressed to A M Main or U Feldt-Rasmussen: or
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Stenman A, Zedenius J, Juhlin CC. The Value of Histological Algorithms to Predict the Malignancy Potential of Pheochromocytomas and Abdominal Paragangliomas-A Meta-Analysis and Systematic Review of the Literature. Cancers (Basel) 2019; 11:cancers11020225. [PMID: 30769931 PMCID: PMC6406721 DOI: 10.3390/cancers11020225] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 02/11/2019] [Accepted: 02/13/2019] [Indexed: 12/26/2022] Open
Abstract
Pheochromocytomas (PCCs) and abdominal paragangliomas (PGLs), collectively abbreviated PPGLs, are neuroendocrine tumors of the adrenal medulla and paraganglia, respectively. These tumors exhibit malignant potential but seldom display evidence of metastatic spread, the latter being the only widely accepted evidence of malignancy. To counter this, pre-defined histological algorithms have been suggested to stratify the risk of malignancy: Pheochromocytoma of the Adrenal Gland Scaled Score (PASS) and the Grading system for Adrenal Pheochromocytoma and Paraganglioma (GAPP). The PASS algorithm was originally intended for PCCs whereas the GAPP model is proposed for stratification of both PCCs and PGLs. In parallel, advances in terms of coupling overtly malignant PPGLs to the underlying molecular genetics have been made, but there is yet no combined risk stratification model based on histology and the overall mutational profile of the tumor. In this review, we systematically meta-analyzed previously reported cohorts using the PASS and GAPP algorithms and acknowledge a “rule-out” way of approaching these stratification models rather than a classical “rule-in” strategy. Moreover, the current genetic panorama regarding possible molecular adjunct markers for PPGL malignancy is reviewed. A combined histological and genetic approach will be needed to fully elucidate the malignant potential of these tumors.
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Affiliation(s)
- Adam Stenman
- Department of Oncology-Pathology, Karolinska Institutet, 171 76 Stockholm, Sweden.
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 171 76 Stockholm, Sweden.
- Department of Breast, Endocrine Tumours and Sarcoma, Karolinska University Hospital, 171 76 Stockholm, Sweden.
| | - Jan Zedenius
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 171 76 Stockholm, Sweden.
- Department of Breast, Endocrine Tumours and Sarcoma, Karolinska University Hospital, 171 76 Stockholm, Sweden.
| | - Carl Christofer Juhlin
- Department of Oncology-Pathology, Karolinska Institutet, 171 76 Stockholm, Sweden.
- Department of Pathology and Cytology, Karolinska University Hospital, 171 76 Stockholm, Sweden.
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Zini E, Nolli S, Ferri F, Massari F, Gerardi G, Nicoli S, Romanelli G, Montinaro V, Trez D, Cavicchioli L, Ferro S. Pheochromocytoma in Dogs Undergoing Adrenalectomy. Vet Pathol 2018; 56:358-368. [PMID: 30595108 DOI: 10.1177/0300985818819174] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Pheochromocytoma is frequent in dogs and carries a guarded prognosis. Current histological criteria may not predict malignant behavior in dogs, similar to humans. In humans, characterization of tumors has been refined using the pheochromocytoma of the adrenal gland scaled score (PASS) and by immunohistochemistry. The study aim was to investigate PASS and immunohistochemical markers used in humans in 24 dogs with pheochromocytoma that underwent adrenalectomy. Dogs with pheochromocytomas were reviewed and tumors collected. Histological sections were evaluated to apply the PASS and were single-labeled for chromogranin A, Ki-67, COX-2, p53, BCL-2, c-erbB-2, vascular endothelial growth factor, and S100. Survival, age, and vascular and capsular invasion were compared for PASS and immunohistochemical markers; results of PASS were also compared for each marker. Associations between markers were tested. PASS and immunohistochemical markers did not differ for survival, age, and vascular and capsular invasion. Tumors showing BCL-2 expression in >50% cells had lower PASS than those with lower expression (PASS: 7 ± 2 vs 9 ± 2; P = .011). Tumors positive for S100 had higher PASS than those that were negative (PASS: 10 ± 2 vs 7 ± 2; P = .001). Results of the different markers were not associated. In conclusion, in the context of canine pheochromocytoma, PASS and the selected immunohistochemical markers are not associated with survival, age, or vascular or capsular invasion. The higher PASS in S100-positive tumors may indicate that pheochromocytomas developing morphologic changes acquire S100 expression. The significance of lower PASS in tumors with elevated BCL-2 expression is uncertain. Overall, the use of PASS and the present immunohistochemical markers may not be useful in dogs with pheochromocytoma.
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Affiliation(s)
- Eric Zini
- 1 Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.,2 Department of Animal Medicine, Production and Health, University of Padova, Legnaro, Italy.,3 Istituto Veterinario di Novara, Granozzo con Monticello NO, Italy
| | - Silvia Nolli
- 2 Department of Animal Medicine, Production and Health, University of Padova, Legnaro, Italy
| | - Filippo Ferri
- 3 Istituto Veterinario di Novara, Granozzo con Monticello NO, Italy
| | | | - Gabriele Gerardi
- 2 Department of Animal Medicine, Production and Health, University of Padova, Legnaro, Italy
| | - Stefano Nicoli
- 3 Istituto Veterinario di Novara, Granozzo con Monticello NO, Italy
| | | | | | - Davide Trez
- 7 Department of Comparative Biomedicine and Food Sciences, University of Padova, Legnaro PD, Italy
| | - Laura Cavicchioli
- 7 Department of Comparative Biomedicine and Food Sciences, University of Padova, Legnaro PD, Italy
| | - Silvia Ferro
- 7 Department of Comparative Biomedicine and Food Sciences, University of Padova, Legnaro PD, Italy
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SDHB mutation status and tumor size but not tumor grade are important predictors of clinical outcome in pheochromocytoma and abdominal paraganglioma. Surgery 2016; 161:230-239. [PMID: 27839933 DOI: 10.1016/j.surg.2016.05.050] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 04/25/2016] [Accepted: 05/05/2016] [Indexed: 11/23/2022]
Abstract
BACKGROUND A staging/prognostic system has long been desired to better categorize pheochromocytoma/paraganglioma which can be very aggressive in the setting of SDHB mutations. METHODS A retrospective analysis was conducted of clinical characteristics and outcomes including results of genetic testing, tumor recurrence/metastasis, Ki67/MIB1% staining, and tumor mitotic index in patients with pheochromocytoma/paraganglioma. RESULTS Patients with SDHB mutation presented at younger age (33.0 years old vs 49.6 years old, P < .001), had increased local recurrence and distant metastases (47.6% vs 9.1%, P < .001, and 56.3% vs 9.1%, P < .001, respectively), and lesser median disease-free interval (89.8 months, 95% confidence interval 36.0-96.4 vs not reached, P < .001). SDHB mutation, greatest tumor diameter, and open operative resection were associated with a greater rate of local recurrence and distant metastases (P < .006 each). SDHB mutation and tumor diameter were independent risk factors for local recurrence (P ≤ .04 each) and metastases. Ki67% and mitotic index were not associated with SDHB mutation (P ≥ .09 each), local recurrence (P = .48, P = .066, respectively), metastases (P ≥ .22 each), or disease-free interval (P ≥ .19 each). CONCLUSION SDHB status and primary tumor size are more predictive of patient outcome than Ki67% or mitotic index and should be part of any clinically relevant, prognostic scoring system.
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Pheochromocytoma multisystem crisis treated with emergency surgery: a case report and literature review. BMC Res Notes 2015; 8:758. [PMID: 26645353 PMCID: PMC4673852 DOI: 10.1186/s13104-015-1738-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 11/24/2015] [Indexed: 12/13/2022] Open
Abstract
Background Pheochromocytoma is a neuroendocrine tumor that predominantly presents with hypertension, palpitations, and tachycardia due to excessive catecholamine excretion. Although pheochromocytoma multisystem crisis (PMC) is relatively rare, urologists and clinicians should focus on early diagnosis as delay in initiating the appropriate treatment can lead to mortality Case presentation A 70-year-old man developed ileus after a few days of medication for hypertension. Computed tomography incidentally revealed a left adrenal mass. This finding together with his clinical course was compatible with pheochromocytoma. An α-blocker was administered immediately, and his blood pressure was well controlled. However, his general condition and laboratory data deteriorated rapidly, and the patient was diagnosed with PMC with lethal status. Thus, emergency adrenalectomy was performed without confirmation of catecholamine levels. From the resected specimen, his tumor was judged as pheochromocytoma. On immunohistochemical analysis, the proliferation index evaluated by Ki-67 staining was 9.7 %. This case report was approved by the Human Ethics Review Committee of the Nagasaki University Hospital. Conclusion The present case of PMC was successfully treated with emergency surgery. The benign pheochromocytoma also presented with high cell proliferation potential, which may be a cause of the extreme aggressiveness of PMC.
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Atalay T, Ak H, Celik B, Gulsen I, Seckin H, Tanik N, Albayrak SB, Bavbek M. Prognostic Factors in Oligodendrogliomas: a Clinical Study of Twenty-Five Consecutive Patients. Asian Pac J Cancer Prev 2015. [PMID: 26225672 DOI: 10.7314/apjcp.2015.16.13.5319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The purpose of this study was to evaluate the prognostic significance of Ki-67 and subjective microvascular density (SMVD) indexes together with other factors in patients with oligodendroglioma. MATERIALS AND METHODS In this retrospective study, oligodendroglioma specimens obtained from twenty-five consecutive patients were evaluated for Ki-67 and SMVD indices to help determine histological grading and investigate the fidelity of these markers in clinical prognosis. Other potentially prognostic factors were Karnofsky performance scale, tumor histological grade, and adjuvant radiotherapy. RESULTS The Ki-67 proliferation index appeared to have a strong correlation with the grade of the tumor and the survival. Age, gender, adjuvant radiotherapy, surgical resection type (complete versus incomplete) did not have any influence on recurrence. The SMVD index correlated significantly with the 3 to 5-year survival. CONCLUSIONS Ki-67 and MVD indexes are important and useful markers in estimating the prognosis of oligodendrogliomas.
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Affiliation(s)
- Tugay Atalay
- Department of Neurosurgery, School of Medicine, Bozok University, Yozgat, Turkey E-mail :
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Tsang VHM, Tacon LJ, Learoyd DL, Robinson BG. Pheochromocytomas in Multiple Endocrine Neoplasia Type 2. Recent Results Cancer Res 2015; 204:157-78. [PMID: 26494388 DOI: 10.1007/978-3-319-22542-5_7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Pheochromocytoma (PC) is a neuroendocrine tumor that originates from chromaffin cells of the adrenal medulla. The production of catecholamines, including epinephrine, norepinephrine and dopamine, may lead to haemodynamic instability. Over 30% of PCs are associated with germline mutations, including re-arranged in transfection (RET) mutations seen in multiple endocrine neoplasia type 2 (MEN2) syndromes. Around 40% of individuals with MEN2 develop PC, though it is rarely the presenting feature. Compared to sporadic PC, MEN2-associated PC is more likely to be epinephine secreting and demonstrate bilateral adrenal involvement, and is less likely to be malignant. The diagnosis of PC requires clinical suspicion and biochemical testing, followed by imaging studies. Novel nuclear medicine modalities, including FDG positron emission tomography (PET) and 68Ga DOTATATE PET have added to the conventional techniques of 123I-metaiodobenzylguanindine (MIBG) scintigraphy, computer tomography and magnetic resonance imaging. Treatment of PC is surgical and requires peri-operative alpha and, frequently, beta blockade. Novel surgical techniques, such as adrenal sparing surgery and a laparoscopic approach, have decreased peri-operative morbidity. Surveillance for PC is life long, due to the risk of metastatic disease.
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Affiliation(s)
- Venessa H M Tsang
- Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia. .,Department of Endocrinology, Acute Services Building, Clinic 1, Royal North Shore Hospital, St. Leonards, Sydney, NSW, 2065, Australia.
| | - Lyndal J Tacon
- Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia.,Department of Endocrinology, Acute Services Building, Clinic 1, Royal North Shore Hospital, St. Leonards, Sydney, NSW, 2065, Australia
| | - Diana L Learoyd
- Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia.,Department of Endocrinology, Acute Services Building, Clinic 1, Royal North Shore Hospital, St. Leonards, Sydney, NSW, 2065, Australia
| | - Bruce G Robinson
- Sydney Medical School, University of Sydney, Sydney, NSW, 2006, Australia.,Department of Endocrinology, Acute Services Building, Clinic 1, Royal North Shore Hospital, St. Leonards, Sydney, NSW, 2065, Australia
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