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Small Bowel Carcinoid: The "Dancing Bowel Sign" on 18F-FDOPA PET/CT
Mehdi Helali1, Céline Heimburger, Serge Rohr
1From the Departments of *Biophysics and Nuclear Medicine, †Digestive and General Surgery, and ‡Internal Medicine, Hautepierre Hospital, University Hospitals of Strasbourg; and §ICube, UMR 7357 CNRS/University of Strasbourg and Fédération de Médecine Translationelle de Strasbourg (FMTS), Faculty of Medicine, Strasbourg, France.
Abstract:
The localization of small bowel (SB) neuroendocrine tumors (NETs) remains a diagnostic challenge in clinical practice. In about a third of cases, SB-NETs are multiple at diagnosis. However, the sensitivity of conventional presurgical diagnostic investigations is not exhaustive. F-FDOPA (6-L-F-fluorodihydroxyphenylalanine) PET seems to be a valuable diagnostic technique for the detection of midgut NETs. According to our experience, a delayed PET/CT acquisition centered on abdominopelvic region and performed after oral hydration may improve the detection of primary tumor and the identification of patients with multifocal SB-NETs who could benefit from a more accurate intraoperative palpation of the entire SB.
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