Pancreatic sarcomatoid carcinoma: CT, MRI, and 18F-FDG PET/CT features.

摘要: AIM To investigate computed tomography (CT), magnetic resonance imaging (MRI), and combined 2-[18F]-fluoro-2-deoxy- d -glucose (18F-FDG) positron-emission (PET)/CT features of pancreatic sarcomatoid carcinoma (PSC). MATERIALS AND METHODS The hospital database was searched retrospectively for the patients with PSC confirmed at histopathology after surgery. Ten who underwent unenhanced enhanced CT (n=4), MRI (n=2), 18F-FDG PET/CT both (n=2) were enrolled. Two additional delayed PET/CT. maximum standardised uptake value (SUVmax) measured on images. RESULTS Eleven lesions detected in 10 patients. Solid cystic components (n=6), intratumoural haemorrhage (n=1), nodular calcification main duct dilatation resulted from lesion obstruction (n=5) or compression (n=3), cholangiectasis (n=5), vascular peripheral organ invasion (n=5 6, respectively), hepatic lymphatic metastases (n=4 2, respectively) detected. All five four showed intense FDG SUVmax (16, range 10.9–21.1). Increase (SUVmax = 18.9, 20.1, 27.3, revealed scan three two CONCLUSIONS PSCs more commonly ill-defined solid masses, which caused obstruction/compression without parenchymal atrophy, these masses high initial