PMID- 35307723 OWN - NLM STAT- MEDLINE DCOM- 20220407 LR - 20230925 IS - 1536-0229 (Electronic) IS - 0363-9762 (Linking) VI - 47 IP - 5 DP - 2022 May 1 TI - Role of 68Ga-DOTATOC PET/CT in Insulinoma According to 3 Different Contexts: A Retrospective Study. PG - 394-401 LID - 10.1097/RLU.0000000000004126 [doi] AB - OBJECTIVE: The aim of this study was to assess the performance of 68Ga-DOTATOC PET/CT in the detection and extension of insulinomas according to 3 different contexts: sporadic benign, sporadic metastatic, and multiple endocrine neoplasia type 1 (MEN1). PATIENTS AND METHODS: The data of 71 adult patients who underwent 68Ga-DOTATOC PET/CT for suspected or confirmed sporadic insulinoma, suspicion of insulinoma in the context of MEN1, follow-up of metastatic insulinoma, or suspicion of recurrence of insulinoma were retrospectively analyzed. Pathological examination or strong clinical and biological findings were used as standards of truth. RESULTS: For the assessment of a confirmed sporadic insulinoma in 17 patients, the sensitivity of SR-PET was 75%, including 2 patients for whom metastatic lesions had been revealed by SR-PET. For 35 patients with a suspicion of insulinoma, the sensitivity was 39%. In 10 patients followed up for metastatic insulinoma, the sensitivity was 100%. For 5 patients with a history of MEN1, interpretation of SR-PET was difficult, as 3 of them presented with multiple pancreatic uptake foci. The global sensitivity of SR-PET in all insulinomas excluding those with a MEN1 story was 64% (100% for metastatic insulinomas, 62% for benign insulinomas), with a specificity of 89%. CONCLUSIONS: 68Ga-DOTATOC PET/CT is a useful examination tool for the assessment of insulinomas in selected contexts, with very high performance for the detection and extension workup of metastatic insulinomas and high specificity for the detection of sporadic benign insulinomas. The examination should be completed with GLP-1 receptor PET when it is negative or in a MEN1 context. CI - Copyright (c) 2022 Wolters Kluwer Health, Inc. All rights reserved. FAU - Moreau, Pierre-Louis AU - Moreau PL AD - From the Service de Medecine Nucleaire, Hopital Tenon AP-HP and Sorbonne University. FAU - Aveline, Cyrielle AU - Aveline C AD - From the Service de Medecine Nucleaire, Hopital Tenon AP-HP and Sorbonne University. FAU - Christin-Maitre, Sophie AU - Christin-Maitre S AD - Endocrinology, Hopital Saint-Antoine AP-HP and Sorbonne University, Paris. FAU - Chanson, Philippe AU - Chanson P AD - Endocrinology, Hopital Bicetre AP-HP and University Paris Sud, Le Kremlin-Bicetre. FAU - Dubreuil, Olivier AU - Dubreuil O AD - Department of Digestive Oncology, Groupe Hospitalier Diaconesses Croix Saint-Simon, Paris, France. FAU - Rusu, Timofei AU - Rusu T AD - From the Service de Medecine Nucleaire, Hopital Tenon AP-HP and Sorbonne University. FAU - Montravers, Francoise AU - Montravers F AD - From the Service de Medecine Nucleaire, Hopital Tenon AP-HP and Sorbonne University. LA - eng PT - Journal Article PL - United States TA - Clin Nucl Med JT - Clinical nuclear medicine JID - 7611109 RN - 0 (Ga(III)-DOTATOC) RN - 0 (Organometallic Compounds) RN - RWM8CCW8GP (Octreotide) SB - IM MH - Adult MH - Humans MH - *Insulinoma/diagnostic imaging MH - Octreotide/analogs & derivatives MH - Organometallic Compounds MH - *Pancreatic Neoplasms/diagnostic imaging/pathology MH - Positron Emission Tomography Computed Tomography MH - Retrospective Studies COIS- Conflicts of interest and sources of funding: none declared. EDAT- 2022/03/22 06:00 MHDA- 2022/04/08 06:00 CRDT- 2022/03/21 05:44 PHST- 2022/03/22 06:00 [pubmed] PHST- 2022/04/08 06:00 [medline] PHST- 2022/03/21 05:44 [entrez] AID - 00003072-202205000-00002 [pii] AID - 10.1097/RLU.0000000000004126 [doi] PST - ppublish SO - Clin Nucl Med. 2022 May 1;47(5):394-401. doi: 10.1097/RLU.0000000000004126.