From the Department of Nuclear Medicine, PET/CT Unit, Gulf International Cancer Center, Abu Dhabi, UAE.
Clin Nucl Med. 2018 Jan;43(1):52-54. doi: 10.1097/RLU.0000000000001906.
A 49-year-old man presented for routine general physical examination was found with an enlarged prostate gland without associated symptoms. Ultrasound followed by computed tomography (CT) of abdomen and pelvis confirmed a markedly enlarged heterogeneous prostate gland. Subsequently, a staging flourine-18 fluorodeoxyglucose (F-FDG) positron emission tomography (PET/CT) scan revealed intensely FDG-avid mass involving the prostate, which was biopsied as gastrointestinal stromal tumor (GIST). The patient was treated with imatinib and a follow-up PET/CT scan showed complete metabolic response. F-FDG PET/CT scan is useful in staging and follow-up of this very rare extragastrointestinal stromal tumor (EGIST).
一位 49 岁男性因常规体检发现前列腺增大，无相关症状。腹部和骨盆的超声及 CT 检查证实前列腺明显增大且不均匀。随后，氟-18 氟代脱氧葡萄糖（F-FDG）正电子发射断层扫描（PET/CT）显示前列腺内有强烈摄取 FDG 的肿块，活检为胃肠道间质瘤（GIST）。患者接受伊马替尼治疗，随后的 PET/CT 扫描显示完全代谢缓解。F-FDG PET/CT 扫描在这种非常罕见的胃肠道外间质瘤（EGIST）的分期和随访中非常有用。
