Fig. 4
Images A1 and A2 show a 77-year-old woman with medium-differentiated gallbladder adenocarcinoma (yellow arrow). During the physical examination one month prior, the patient was found to have a space-occupying gallbladder, without jaundice, fever, abdominal pain or abdominal mass. The patient had no history of cholecystolithiasis, gallbladder polyps or cholecystitis. The CEA was 6.59, and the CA19-9 was 9.22. The lesion showed that SUVR was 5.5 (A1-MIP image of 18F-FDG PET/CT; A2-First line: axial PET, CT, and PET and CT fusion images; Second line: coronal PET, CT, and PET and CT fusion images; Third line: sagittal PET, CT, and PET and CT fusion images). Images B1 and B2 show a 39-year-old man with acute cholecystitis with chronic inflammation of the gallbladder mucosa (red arrow). The patient had no obvious cause of abdominal pain with fever for 1 month. The patient had a medical history of cholecystolithiasis. The CEA was 6.59, and the CA19-9 was 9.22. The lesion showed an SUVR of 2.1 (A1-MIP image of 18F-FDG PET/CT; A2-First line: axial PET, CT, and PET and CT fusion images; Second line: coronal PET, CT, and PET and CT fusion images; Third line: sagittal PET, CT, and PET and CT fusion images)