Related Experiment Video
Updated: Apr 11, 2026
A Practical Guide for the Production and PET/CT Imaging of 68Ga-DOTATATE for Neuroendocrine Tumors in Daily Clinical Practice
Published on: April 17, 2019
The Sunburst Sign in the Mesentery: Unveiling the Diagnosis With ⁶⁸Ga DOTATATE PET/CT
Ömer F Şahin1, Dilruba Şahin2, Zehranur Tosunoğlu3
1Department of Nuclear Medicine, University of Health Sciences, Ümraniye Training and Research Hospital.
Abstract:
Contrast-enhanced abdominal CT of a 57-year-old man presenting with abdominal pain and diarrhea revealed a spiculated, calcified mesenteric mass, initially suggesting a desmoid tumor (DT). The lesion's ametabolic nature on 18 F-FDG PET/CT supported this suspicion. However, ⁶⁸Ga DOTATATE PET/CT demonstrated intense uptake in both the mesenteric mass, which exhibited a "sunburst" calcification pattern, and the primary ileal focus. Histopathology confirmed an ileal neuroendocrine tumor (NET) with mesenteric lymph node metastasis. This case highlights the critical role of ⁶⁸Ga DOTATATE PET/CT in the differential diagnosis, primary site detection, and accurate staging of FDG-negative mesenteric masses associated with a desmoplastic reaction.
More Related Videos
10:28Gene Regulation and Targeted Therapy in Gastric Cancer Peritoneal Metastasis: Radiological Findings from Dual Energy CT and PET/CT
Published on: January 22, 2018
09:55Radiosynthesis, Quality Control, and Small Animal Positron Emission Tomography Imaging of 68Ga-Labelled Nano Molecules
Published on: October 4, 2024
Related Concept Videos
01:29Positron Emission Tomography
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
01:25Imaging Studies II: Positron Emission Tomography and Scintigraphy
Fundamental Principles of PET
01:13Radiological Investigation III: Pulmonary Angiogram and PET Scan
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
01:26Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...