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Guerrero-Pérez F, Vilarrasa N, Huánuco LV, Busquets J, Secanella L, Vercher-Conejero JL, Vidal N, Näf Cortés S, Villabona C. Ectopic insulinoma: a systematic review. Rev Endocr Metab Disord 2023; 24:1135-1146. [PMID: 37434098 DOI: 10.1007/s11154-023-09824-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/07/2023] [Indexed: 07/13/2023]
Abstract
Knowledge of ectopic insulinomas comes from single cases. We performed a systematic review through PubMed, Web of Science, Embase, eLibrary and ScienceDirect of all cases reported in the last four decades. We also describe one unreported patient. From 28 patients with ectopic insulinoma, 78.6% were female and mean age was 55.7 ± 19.2 years. Hypoglycaemia was the first symptom in 85.7% while 14.3% complained of abdominal pain or genital symptoms. Median tumour diameter was 27.5 [15-52.5] mm and it was localised by CT (73.1%), MRI (88.9%), [68Ga]Ga-DOTA-exedin-4 PET/CT (100%), 68Ga-labelled-DOTA-conjugated somatostatin analogue PET/TC (100%), somatostatin receptor scintigraphy (40%) and endoscopic ultrasound (50%). Ectopic insulinomas were located at duodenum (n = 3), jejunum (n = 2), and one respectively at stomach, liver, appendix, rectum, mesentery, ligament of Treitz, gastrosplenic ligament, hepatoduodenal ligament and splenic hilum. Seven insulinomas were affecting the female reproductive organs: ovary (n = 5), cervix (n = 2) and remaining tumours were at retroperitoneum (n = 3), kidney (n = 2), spleen (n = 1) and pelvis (n = 1). 89.3% underwent surgery (66.7% surgery vs. 33.3% laparoscopy) and 16% underwent an ineffective pancreatectomy. 85.7% had localized disease at diagnosis and 14.3% developed distant metastasis. Median follow-up time was 14.5 [4.5-35.5] months and mortality was reported in 28.6% with median time until death of 60 [5-144] months. In conclusion, ectopic insulinomas are presented as hypoglycaemia with female preponderance. Functional imaging [68Ga]Ga-DOTA-exedin-4 PET/CT and 68Ga-labelled-DOTA-conjugated somatostatin analogue PET/TC have very high sensitivity. Clinicians should be alert to the possibility of extra-pancreatic insulinomas when classic diagnostic tests and intraoperative pancreas exploration failed to locate the tumour.
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Affiliation(s)
- Fernando Guerrero-Pérez
- Department of Endocrinology, Bellvitge University Hospital, Barcelona, Spain.
- Biomedical Research Institute of Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain.
| | - Nuria Vilarrasa
- Department of Endocrinology, Bellvitge University Hospital, Barcelona, Spain
- Biomedical Research Institute of Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain
| | - Lidia V Huánuco
- Department of Endocrinology, Bellvitge University Hospital, Barcelona, Spain
- Biomedical Research Institute of Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Juli Busquets
- Biomedical Research Institute of Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
- Department of Hepatobiliary and Pancreatic Surgery, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Lluis Secanella
- Biomedical Research Institute of Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
- Department of Hepatobiliary and Pancreatic Surgery, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | - José L Vercher-Conejero
- Biomedical Research Institute of Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
- Department of Nuclear Medicine-PET Unit, University Hospital Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Noemi Vidal
- Biomedical Research Institute of Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
- Department of Pathology, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Silvia Näf Cortés
- Department of Endocrinology, Joan XXIII University Hospital, Tarragona, Spain
| | - Carles Villabona
- Department of Endocrinology, Bellvitge University Hospital, Barcelona, Spain
- Biomedical Research Institute of Bellvitge (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
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Patterson KN, Trout AT, Shenoy A, Abu-El-Haija M, Nathan JD. Solid pancreatic masses in children: A review of current evidence and clinical challenges. Front Pediatr 2022; 10:966943. [PMID: 36507125 PMCID: PMC9732489 DOI: 10.3389/fped.2022.966943] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 11/03/2022] [Indexed: 11/26/2022] Open
Abstract
Pancreatic tumors in children are infrequently encountered in clinical practice. Their non-specific clinical presentation and overlapping imaging characteristics often make an accurate preoperative diagnosis difficult. Tumors are categorized as epithelial or non-epithelial, with epithelial tumors further classified as tumors of the exocrine or endocrine pancreas. Although both are tumors of the exocrine pancreas, solid pseudopapillary neoplasm is the most prevalent solid pancreatic tumor in children, while pancreatoblastoma is the most common malignant tumor. Insulinoma is the most common pediatric pancreatic tumor of the endocrine pancreas. Malignant tumors require a complete, often radical, surgical resection. However, pancreatic parenchyma-sparing surgical procedures are utilized for benign tumors and low-grade malignancy to preserve gland function. This review will discuss the epidemiology, pathophysiology, clinical and diagnostic characteristics, and management options associated with both common and rare solid pancreatic masses in children. We will also discuss current challenges encountered in their evaluation and treatment.
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Affiliation(s)
- Kelli N Patterson
- Center for Surgical Outcomes Research, Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH, United States
| | - Andrew T Trout
- Department of Radiology, Cincinnati Children's Hospital Medical Center, Departments of Radiology and Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Archana Shenoy
- Department of Pathology and Laboratory Medicine, Nationwide Children's Hospital, Department of Pathology, The Ohio State University College of Medicine, Columbus, OH, United States
| | - Maisam Abu-El-Haija
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Jaimie D Nathan
- Department of Abdominal Transplant and Hepatopancreatobiliary Surgery, Nationwide Children's Hospital, Department of Surgery, The Ohio State University College of Medicine, Columbus, OH, United States
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Zhang X, Jia H, Li F, Fang C, Zhen J, He Q, Liu M. Ectopic insulinoma diagnosed by 68Ga-Exendin-4 PET/CT: A case report and review of literature. Medicine (Baltimore) 2021; 100:e25076. [PMID: 33787590 PMCID: PMC8021326 DOI: 10.1097/md.0000000000025076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 02/15/2021] [Indexed: 11/25/2022] Open
Abstract
RATIONALE Ectopic insulinomas are extremely rare and challenging to diagnose for clinicians. Precise preoperative localization is essential to successful treatment. PATIENT CONCERNS A 23-year-old man presented with a 1-year history of recurrent hypoglycemia. DIAGNOSIS Examinations in the local hospital did not reveal any pancreatic lesion. After admission, a fasting test and a 5-hour oral glucose tolerance test (OGTT) suggested a diagnosis of endogenous hyperinsulinemic hypoglycemia. Enhanced volume perfusion computed tomography (VPCT) revealed 2 nodules in the tail of the pancreas, a nodule in the gastric antrum, and a nodule in the hilum of the spleen. To differentiate which nodule was responsible for hypoglycemia, we performed 68Ga-Exendin-4 PET/CT and 68Ga-DOTATATE PET/CT which helped to make a conclusive diagnosis that the lesion in the gastric antrum was an ectopic insulinoma. INTERVENTIONS The patient was cured with minimally invasive laparoscopic resection of the tumor. OUTCOMES The symptoms were relieved and the blood glucose level remained normal after surgery. CONCLUSIONS This case shows that 68Gallium-exendin-4 PET/CT is useful for precise localization and thereby successful treatment of insulinoma, especially for occult insulinomas and those derived from an ectopic pancreas.
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Affiliation(s)
- Xiaona Zhang
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital
- Nankai University State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
| | - Hongwei Jia
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital
| | - Fengao Li
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital
| | - Chunyun Fang
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital
| | - Jinyang Zhen
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital
| | - Qing He
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital
| | - Ming Liu
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital
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La Rosa S, Pariani D, Calandra C, Marando A, Sessa F, Cortese F, Capella C. Ectopic duodenal insulinoma: a very rare and challenging tumor type. Description of a case and review of the literature. Endocr Pathol 2013; 24:213-9. [PMID: 24006218 DOI: 10.1007/s12022-013-9262-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Although most insulinomas are located in the pancreas, very rare ectopic cases have been described in the spleen, perisplenic tissue, duodenohepatic ligament, and adjacent to the ligament of Treitz. Moreover, three cases located in the duodenum have also been reported in the English literature. Ectopic insulinomas represent challenging neoplasms with clinical implications mainly due to the difficulties in their pre-operatory diagnosis and localization. In the present paper, we describe the fourth ectopic duodenal insulinoma so far reported. A 75-year-old woman presented at clinical observation due to neuroglycopenic symptoms that disappeared after glucose intake. Tumor was localized in the second portion of the duodenum in front of the papilla of Vater and was surgically enucleated. Microscopically, it was composed of monomorphic cells with eosinophilic cytoplasm arranged in trabecular and lobular patterns and diffusely positive for insulin, proinsulin, amylin, and PDX1. About 30 % of tumor cells also showed immunoreactivity for somatostatin, while no positivity for glucagon, pancreatic polypeptide, gastrin, serotonin, and somatostatin receptor subtype 2A was found. The Ki67 proliferative index was 1 %. We have also reviewed the literature on this topic to give the reader a comprehensive overview of this very rare tumor type.
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Affiliation(s)
- Stefano La Rosa
- Department of Pathology, Ospedale di Circolo, Viale Borri 57, 21100, Varese, Italy,
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Hoffmann KM, Furukawa M, Jensen RT. Duodenal neuroendocrine tumors: Classification, functional syndromes, diagnosis and medical treatment. Best Pract Res Clin Gastroenterol 2005; 19:675-97. [PMID: 16253893 DOI: 10.1016/j.bpg.2005.05.009] [Citation(s) in RCA: 128] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Duodenal neuroendocrine tumors (NETs) comprise 2-3% of all GI endocrine tumors and are increasing in frequency. These include gastrinomas, somatostatinomas, nonfunctional NETs, gangliocytic paragangliomas, and poorly differentiated NE carcinomas. Although, the majority are nonfunctional, these tumors are a frequent cause of Zollinger-Ellison syndrome and can cause other clinical hormonal syndromes (carcinoid, Cushing's, etc.). In this chapter, their epidemiology, clinical aspects, localization, diagnosis and medical treatment are reviewed including the latest advances in each area.
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Affiliation(s)
- K Martin Hoffmann
- Digestive Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bldg. 10, Rm. 9C-103, 10 Center Dr, MSC 1804, Bethesda, MD 20892-1804, USA
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Abstract
A rare insulin-immunoreactive neuroendocrine tumor of the duodenum in a 54 year old male is reported. The incidentally identified tumor was located on the anterior free wall of the duodenal bulb and measured approximately 6 mm in diameter. Uncomplicated endoscopic resection of the tumor was carried out. The lesion exhibited classic histologic features of insulinoma of the beta-islet cell type with stromal amyloid deposition. In addition to positive reactivities of chromogranin A, neuron-specific enolase, synaptophysin, Leu 7 (CD57), cystatin C, CA15-3 and cytokeratin, the non-argyrophilic tumor cells were strongly immunoreactive for insulin and C-peptide. The stromal amyloid was clearly labeled for amylin. A few cells were stained for somatostatin, whereas other hormones were negative. Interestingly, a few isolated insulin-positive cells were identified in the non-neoplastic duodenal mucosa in the proximity of the tumor. Immunoelectron microscopy using paraffin sections disclosed insulin-immunoreactive secretory granules in the cytoplasm. The patient exhibited no signs or symptoms of hypoglycemia. Serum insulin levels were not measured prior to resection. No tumors were demonstrated in the pancreas. Magnetic resonance imaging revealed a 1 cm asymptomatic pituitary mass, in association with moderately elevated serum prolactin levels. The patient is currently being followed up in the outpatient clinic.
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Affiliation(s)
- W Watanabe
- Department of Pathology, Tokai University School of Medicine, Isehara, Japan
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Affiliation(s)
- V Marks
- Department of Clinical Biochemistry and Nutrition, St Luke's Hospital Guildford, Surrey, U.K
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Leach SD, LaMorte AI, True LD, Flynn SD, Schwartz PE, Cahow CE, Kinder BK. Aberrant hormone production from ovarian neoplasms: strategies for diagnosis and therapy. World J Surg 1990; 14:335-40; discussion 340-1. [PMID: 2164282 DOI: 10.1007/bf01658520] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Syndromes involving peptide or nonsex steroid hormone secretion due to aberrantly located tumors are rare. We report a collected series of 16 patients with ectopic hormone production from ovarian neoplasms, including 3 patients recently encountered at our institution as well as 13 additional cases identified in the recent literature. These tumors included 2 insulin-producing ovarian carcinoids, 1 ACTH-producing pituitary adenoma within a benign ovarian cystic teratoma, 2 cortisol-producing ovarian neoplasms, 8 gastrin-producing ovarian cystadenomata or cystadenocarcinomata, and 3 thyroxine-producing ovarian strumal carcinoids. All patients presented with syndromes of hormone excess. Only 62% of all tumors were localized preoperatively. Following ovarian resection, 87% of patients remained disease-free with a median follow-up period of 1.5 years. In addition to ovariectomy, 8 additional unnecessary ablative procedures were performed in 7 patients. These included distal pancreatectomy, pancreaticoduodenectomy, adrenalectomy, total gastrectomy, selective vagotomy, and subtotal thyroidectomy. Failure to localize the ovarian neoplasm preoperatively was associated with a significantly higher risk of subsequent unnecessary ablative procedures. Because of the potential for the ovary to act as a source of aberrant hormone secretion, we recommend complete preoperative evaluation of the pelvis in female patients presenting with nonlocalizable endocrine tumors.
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Affiliation(s)
- S D Leach
- Department of Surgery, Yale University School of Medicine, New Haven, Connecticut 06510
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Abstract
In this review the current state of our understanding of endocrine tumors of the pancreas is considered. It is based on the experience with a series of 365 tumors. The first part of the article focuses on origin and classification, markers, frequency, criteria of malignancy as well as general structural features of the pancreatic endocrine tumors. In the second half of the article the functioning tumors, i.e. tumors that cause hormonal syndromes, and the nonfunctioning tumors as well as the endocrine tumors associated with multiple endocrine neoplasia type 1 are dealt with in detail. Special emphasis is put on the immunocytochemical profile and the biological features of the respective tumors.
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Affiliation(s)
- G Klöppel
- Department of Pathology, Free University of Brussels, Belgium
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