BACKGROUND: Gastrointestinal stromal tumours (GISTs) are
a subset of mesenchymal tumours that represent the most common
mesenchymal neoplasms of the gastrointestinal (GI) tract
and account for less than 1% of all gastrointestinal tumours.
MATERIAL AND METHODS: We retrospectively evaluated 19
patients (6 females and 13 males; median age: 61 years ± 15
standard deviation) affected by GIST histologically documented
after surgical intervention or biopsy.
RESULTS: F18-FDG-PET/CT had identified pathologic uptakes
and was considered positive for neoplastic tissue in 10 patients
(53%) and negative in 9 (47%), in concordance with radiological
findings.
CONCLUSIONS: F18-FDG-PET/CT is a feasible, reliable, and
accurate method to restage patients affected by previously histologically
confirmed GIST, also in the absence of a staging study.
Nuclear Med Rev 2010; 13, 2: 76–8
