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Grubor NM, Grubor NN, Micev M. Diagnostic Challenges in Difficult-to-Localize Insulinomas: A Case Report and Review of Literature. Diagnostics (Basel) 2024; 14:1600. [PMID: 39125476 PMCID: PMC11311322 DOI: 10.3390/diagnostics14151600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 07/22/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024] Open
Abstract
Non-somatostatin receptor expressing hypovascular insulinomas can be challenging to prove through imaging. This case highlights the utility of a structured approach to molecular imaging in patients with confirmed endogenous hyperinsulinemia. A 54-year-old woman was admitted because of a sudden loss of consciousness. Her relative reported that she complained of dizziness, intense sweating, blurry vision, and upper extremity tingling before becoming unresponsive for 20 min, after which the patient had little recollection of the event. She experienced similar episodes of shorter duration, trouble recalling everyday events, and unintentional weight gain of over 10 kg during the previous two years. Abdominal magnetic resonance imaging (MRI) and multidetector computerized tomography (MDCT) were unremarkable. Selective arterial calcium stimulation significantly increased hepatic venous insulin concentrations when the superior mesenteric and gastroduodenal arteries were stimulated. Technetium-99m (99mTc) octreotide single-photon emission computed tomography (SPECT) did not localize the lesion. Gallium-68 DOTA-Exendin-4 PET/CT acquisition was performed. A single intense 2 cm hyperperfused pancreatic lesion was located anteriorly in the head of the pancreas. Earlier targeted PET/CT imaging and recognition of significant neuropsychiatric symptoms attributable to the patient's hypoglycemic state might have accelerated the resolution of her condition and obviated the need for unnecessary testing.
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Affiliation(s)
- Nikica M. Grubor
- Department for HBP Surgery, Clinic for Digestive Surgery, University Clinical Centre of Serbia, Koste Todorovića 6, 11000 Belgrade, Serbia;
- Department for Surgery with Anesthesiology, Faculty of Medicine, University of Belgrade, Dr Subotića 8, 11000 Belgrade, Serbia
| | - Nikola N. Grubor
- Institute for Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Dr Subotića 15, 11000 Belgrade, Serbia
| | - Marjan Micev
- Department for Pathology, Clinic for Digestive Surgery, University Clinical Centre of Serbia, Koste Todorovića 6, 11000 Belgrade, Serbia;
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Peltola E, Hannula P, Huhtala H, Metso S, Kiviniemi U, Vornanen M, Sand J, Laukkarinen J, Tiikkainen M, Schalin-Jäntti C, Arola J, Sirén J, Piiroinen A, Soinio M, Nuutila P, Söderström M, Hämäläinen H, Moilanen L, Laaksonen D, Pirinen E, Sundelin F, Ebeling T, Salmela P, Mäkinen MJ, Jaatinen P. Characteristics and Outcomes of 79 Patients with an Insulinoma: A Nationwide Retrospective Study in Finland. Int J Endocrinol 2018; 2018:2059481. [PMID: 30425741 PMCID: PMC6218736 DOI: 10.1155/2018/2059481] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Accepted: 09/09/2018] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE Insulinomas are rare pancreatic tumours. Population-based data on their incidence, clinical picture, diagnosis, and treatment are almost nonexistent. The aim of this study was to clarify these aspects in a nationwide cohort of insulinoma patients diagnosed during three decades. DESIGN AND METHODS Retrospective analysis on all adult patients diagnosed with insulinoma in Finland during 1980-2010. RESULTS Seventy-nine patients were diagnosed with insulinoma over the research period. The median follow-up from diagnosis to last control visit was one (min 0, max 31) year. The incidence increased from 0.5/million/year in the 1980s to 0.9/million/year in the 2000s (p = 0.002). The median diagnostic delay was 13 months and did not change over the study period. The mean age at diagnosis was 52 (SD 16) years. The overall imaging sensitivity improved from 39% in the 1980s to 98% in the 2000s (p < 0.001). Seventy-one (90%) of the patients underwent surgery with a curative aim, two (3%) had palliative surgery, and 6 (8%) were inoperable. There were no significant differences in the types of surgical procedures between the 1980s, 1990s, and 2000s; tumour enucleations comprised 43% of the operations, distal pancreatic resections 45%, and pancreaticoduodenectomies 12%, over the whole study period. Of the patients who underwent surgery with a curative aim, 89% had a full recovery. Postoperative complications occurred in half of the patients, but postoperative mortality was rare. CONCLUSIONS The incidence of insulinomas has increased during the past three decades. Despite the improved diagnostic options, diagnostic delay has remained unchanged. To shorten the delay, clinicians should be informed and alert to consider the possibility of hypoglycemia and insulinoma, when symptomatic attacks are investigated in different sectors of the healthcare system. Developing the surgical treatment is another major target, in order to lower the overall complication rate, without compromising the high cure rate of insulinomas.
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Affiliation(s)
- Elina Peltola
- Faculty of Medicine and Life Sciences, University of Tampere, Finland
- Division of Internal Medicine, Seinäjoki Central Hospital, Finland
| | - Päivi Hannula
- Endocrinology, Department of Internal Medicine, Tampere University Hospital, Finland
| | - Heini Huhtala
- Faculty of Social Sciences, University of Tampere, Finland
| | - Saara Metso
- Endocrinology, Department of Internal Medicine, Tampere University Hospital, Finland
| | - Ulla Kiviniemi
- Endocrinology, Department of Internal Medicine, Tampere University Hospital, Finland
| | - Martine Vornanen
- Fimlab Laboratories, Pathology Department, Tampere University Hospital, Finland
| | - Juhani Sand
- Päijät-Häme Joint Authority for Health and Wellbeing, Finland
| | - Johanna Laukkarinen
- Faculty of Medicine and Life Sciences, University of Tampere, Finland
- Department of Gastroenterology and Alimentary Tract Surgery, Tampere University Hospital, Finland
| | - Mirja Tiikkainen
- Endocrinology, Abdominal Center, Helsinki University Hospital, Finland
| | - Camilla Schalin-Jäntti
- Endocrinology, Abdominal Center, Helsinki University Hospital, Finland
- Endocrinology, Abdominal Center, University of Helsinki, Finland
| | - Johanna Arola
- Pathology, HUSLAB Helsinki University Hospital, Finland
- Pathology, University of Helsinki, Finland
| | - Jukka Sirén
- Abdominal Center, Helsinki University Hospital, Finland
| | | | - Minna Soinio
- Endocrinology, Department of Internal Medicine, Turku University Hospital, Finland
| | - Pirjo Nuutila
- Faculty of Medicine, University of Turku, Finland
- Endocrinology, Department of Internal Medicine, Turku University Hospital, Finland
| | | | - Hanna Hämäläinen
- Faculty of Health Sciences, School of Medicine, University of Eastern Finland, Finland
| | - Leena Moilanen
- Department of Medicine, Kuopio University Hospital, Finland
| | | | - Elina Pirinen
- Department of Clinical Pathology, Kuopio University Hospital, Finland
| | - Fia Sundelin
- Faculty of Medicine, University of Oulu, Finland
| | - Tapani Ebeling
- Faculty of Medicine, University of Oulu, Finland
- Endocrinology, Oulu University Hospital, Finland
| | - Pasi Salmela
- Endocrinology, Oulu University Hospital, Finland
| | - Markus J. Mäkinen
- Research Unit of Cancer and Translational Medicine, Department of Pathology, University of Oulu, Finland
- Department of Pathology, Oulu University Hospital, Finland
| | - Pia Jaatinen
- Faculty of Medicine and Life Sciences, University of Tampere, Finland
- Division of Internal Medicine, Seinäjoki Central Hospital, Finland
- Endocrinology, Department of Internal Medicine, Tampere University Hospital, Finland
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Wu M, Wang H, Zhang X, Gao F, Liu P, Yu B, Qiu H, Huang G, Tan X. Efficacy of laparoscopic ultrasonography in laparoscopic resection of insulinoma. Endosc Ultrasound 2017. [PMID: 28621290 PMCID: PMC5488516 DOI: 10.4103/2303-9027.194703] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Insulinoma is the most common functioning islet cell tumor of the pancreas, with an annual incidence of 4 cases/1 million individuals. It is treated by surgical methods. Open surgery was once considered the standard approach for the treatment of insulinoma. However, the procedure is traumatic and requires a large incision, which does not satisfy the growing expectations of minimally invasive management of small-sized tumors. Insulinomas are usually benign solitary tumors and mostly occur sporadically, which makes them suitable candidates for laparoscopic management. The potential advantages of laparoscopic management of insulinoma over open surgery include shorter duration of hospitalization, quicker recovery, and better cosmetic effect. However, because of the small tumor size as well as the depth and uncertainty of the location of the tumor, laparoscopic localization of the lesion without tactile sensation is difficult. Laparoscopic ultrasonography can detect about 90% of insulinomas, and its sensitivity is comparable to that of manual palpation along with intraoperative ultrasonography during open surgery; thus, it ensures the feasibility of laparoscopic management of insulinoma and reinforces its advantage as a minimally invasive procedure. Laparoscopic ultrasonography is vital for the localization of insulinomas and characterization of the surrounding pancreatic structure and should, therefore, be considered an integral part of the laparoscopic management of insulinoma.
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Affiliation(s)
- Mengwei Wu
- Department of Pancreatic and Thyroidal Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Huaitao Wang
- Department of Pancreatic and Thyroidal Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Xiaobo Zhang
- Department of Pancreatic and Thyroidal Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Feng Gao
- Department of Pancreatic and Thyroidal Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Peng Liu
- Department of Pancreatic and Thyroidal Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Boqiang Yu
- Department of Pancreatic and Thyroidal Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Huanbing Qiu
- Department of Pancreatic and Thyroidal Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Guanlong Huang
- Department of Pancreatic and Thyroidal Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Xiaodong Tan
- Department of Pancreatic and Thyroidal Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
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Laparoscopic distal pancreatectomy: many meta-analyses, few certainties. Updates Surg 2016; 68:225-234. [PMID: 27605207 DOI: 10.1007/s13304-016-0389-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 08/19/2016] [Indexed: 01/16/2023]
Abstract
In recent years, an increasing of the level of evidence occurred with a significant number of meta-analyses. A question remains open: can LDP be considered the "new gold standard" for benign and malignant body-tail pancreatic disease? A systematic literature search was conducted to identify all meta-analyses published up to 2016. The primary endpoint was to evaluate the clinical safety of LDP. The secondary endpoints were to evaluate: the length of hospital stay (LOS), readmission rate, postoperative pancreatic fistula (POPF), overall postoperative morbidity and oncologic safety. Nine studies were found to be suitable for the analysis. Data regarding clinical safety were extractable in all meta-analyses but a "between study" homogeneity was available only in 7. The safety of LDP was sustained by six meta-analyses in benign/low grade of malignancy body-tail pancreatic lesions, by one in ductal adenocarcinoma (PDAC). LDP has a shorter LOS compared to open distal pancreatectomy (ODP), demonstrated by three meta-analyses. Readmission rate in LDP procedures was lower than in ODP; these data are sustained by one meta-analysis. LDP is not inferior to ODP regarding the occurrence of POPF (seven meta-analyses); overall morbidity rate was lower in LDP than ODP for benign or low-grade malignant tumor. The use of the LDP in PDAC is sustained from one study. In conclusion, LDP can be considered a safe alternative to ODP. LDP could have some advantages but the data do not permit to define this procedure as the first choice or as the new gold standard.
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Doi R. Determinants of surgical resection for pancreatic neuroendocrine tumors. JOURNAL OF HEPATO-BILIARY-PANCREATIC SCIENCES 2015; 22:610-7. [PMID: 25773163 DOI: 10.1002/jhbp.224] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 01/14/2015] [Indexed: 12/14/2022]
Abstract
Pancreatic neuroendocrine tumors (pNETs) include functioning and non-functional tumors. Functioning tumors consist of tumors that produce a variety of hormones and their clinical effects. Therefore, determinants of resection of pNETs should be discussed for each group of tumors. Less than 10% of insulinomas are malignant, therefore more than 90% of the cases can be cured by surgical resection. Lymphadenectomy is generally not necessary in insulinoma operation. If preoperative localization of the insulinoma is completed, enucleation from the pancreatic body or tail, and distal pancreatectomy can be performed safely by laparoscopy. When preoperative localization of a sporadic insulinoma is not confirmed, surgical exploration is needed. Intraoperative localization of a tumor, intraoperative insulin sampling and frozen section are required. The crucial purpose of surgical resection is to control inappropriate insulin secretion by removing all insulinomas. Gastrinomas are usually located in the duodenum or pancreas, which secrete gastrin and cause Zollinger-Ellison syndrome (ZES). Duodenal gastrinomas are usually small, therefore they are not seen on preoperative imaging studies or endoscopic ultrasound, and can be found only at surgery if a duodenotomy is performed. In addition, lymph node metastasis is found in 40-60% of cases. Therefore, the experienced surgeons should direct operation for gastrinomas. Surgical exploration with duodenotomy should be performed at a laparotomy. Other functioning pNETs can occur in the pancreas or in other locations. Curative resection is always recommended whenever possible after optimal symptomatic control of the clinical syndrome by medical treatment. Indications for surgery depend on clinical symptom control, tumor size, location, extent, malignancy and presence of metastasis. A lot of non-functioning pNETs are found incidentally according to the quality improvement of imaging techniques. Localized, small, malignant non-functioning pNETs should be operated on aggressively, while in possibly benign tumors smaller than 2 cm the surgical risk-benefit ratio should be carefully weighted. Surgical liver resection is generally proposed in curative intent to all patients with operable metastases from G1 or G2 pNET. The benefits of surgical resection of liver metastases have been demonstrated in terms of overall survival and quality of life. Complete resection is associated with better long-term survival.
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Affiliation(s)
- Ryuichiro Doi
- Department of Surgery, Otsu Red Cross Hospital, 1-1-35 Nagara, Otsu, Shiga, 520-8511, Japan
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Morris J, Truty M, McKenzie T. Laparoscopic Distal Pancreatectomy and Splenectomy for Insulinoma. VideoEndocrinology 2015. [DOI: 10.1089/ve.2014.0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - Mark Truty
- Department of Surgery, Mayo Clinic, Rochester, Minnesota
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Su AP, Ke NW, Zhang Y, Liu XB, Hu WM, Tian BL, Zhang ZD. Is laparoscopic approach for pancreatic insulinomas safe? Results of a systematic review and meta-analysis. J Surg Res 2013; 186:126-34. [PMID: 23992857 DOI: 10.1016/j.jss.2013.07.051] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Revised: 07/14/2013] [Accepted: 07/26/2013] [Indexed: 02/05/2023]
Abstract
BACKGROUND No consensus exists as to whether laparoscopic treatment for pancreatic insulinomas (PIs) is safe and feasible. The aim of this meta-analysis was to assess the feasibility, safety, and potential benefits of laparoscopic approach (LA) for PIs. The abovementioned approach is also compared with open surgery. METHODS A systematic literature search (MEDLINE, EMBASE, Cochrane Library, Science Citation Index, and Ovid journals) was performed to identify relevant articles. Articles that compare the use of LA and open approach to treat PI published on or before April 30, 2013, were included in the meta-analysis. The evaluated end points were operative outcomes, postoperative recovery, and postoperative complications. RESULTS Seven observational clinical studies that recruited a total of 452 patients were included. The rates of conversion from LA to open surgery ranged from 0%-41.3%. The meta-analysis revealed that LA for PIs is associated with reduced length of hospital stay (weighted mean difference, -5.64; 95% confidence interval [CI], -7.11 to -4.16; P < 0.00001). No significant difference was observed between LA and open surgery in terms of operation time (weighted mean difference, 2.57; 95% CI, -10.91 to 16.05; P = 0.71), postoperative mortality, overall morbidity (odds ratio [OR], 0.64; 95% CI, 0.35-1.17; P = 0.14], incidence of pancreatic fistula (OR, 0.86; 95% CI, 0.51-1.44; P = 0.56), and recurrence of hyperglycemia (OR, 1.81; 95% CI, 0.41-7.95; P = 0.43). CONCLUSIONS Laparoscopic treatment for PIs is a safe and feasible approach associated with reduction in length of hospital stay and comparable rates of postoperative complications in relation with open surgery.
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Affiliation(s)
- An-Ping Su
- Department of Hepatobiliopancreatic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
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Carrère N, Mathonnet M, Mirallié É, Pattou F, Sa-Cunha A. Surgical treatment. ANNALES D'ENDOCRINOLOGIE 2013; 74:191-5. [PMID: 23806168 DOI: 10.1016/j.ando.2013.05.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Nicolas Carrère
- Service de chirurgie générale et digestive, pôle digestif, hôpital Purpan, CHU de Toulouse, 31059 Toulouse cedex 9, France
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Knigge U, Hansen CP. Surgery for GEP-NETs. Best Pract Res Clin Gastroenterol 2012; 26:819-31. [PMID: 23582921 DOI: 10.1016/j.bpg.2012.12.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 12/27/2012] [Indexed: 01/31/2023]
Abstract
Surgery is the only treatment that may cure the patient with gastroentero-pancreatic (GEP) neuroendocrine tumours (NET) and neuroendocrine carcinomas (NEC) and should always be considered as first line treatment if R0/R1 resection can be achieved. The surgical and interventional procedures for GEP-NET are accordingly described below. Life-long follow-up should be performed in almost all patients at a specialized NET center.
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Affiliation(s)
- Ulrich Knigge
- Department of Gastrointestinal Surgery C, Neuroendocrine Tumor Centre of Excellence, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
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Jensen RT, Cadiot G, Brandi ML, de Herder WW, Kaltsas G, Komminoth P, Scoazec JY, Salazar R, Sauvanet A, Kianmanesh R. ENETS Consensus Guidelines for the management of patients with digestive neuroendocrine neoplasms: functional pancreatic endocrine tumor syndromes. Neuroendocrinology 2012; 95:98-119. [PMID: 22261919 PMCID: PMC3701449 DOI: 10.1159/000335591] [Citation(s) in RCA: 340] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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