Intra-abdominal inflammatory myofibroblastic tumor: Spontaneous regression

Figure 4 Computed tomography/positron emission tomography-computer tomography imaging changes of patient No. 2. A: A computed tomography (CT) scan on admission showed that the gastric wall at the antrum was clearly thickened and enhanced (white arrow) in the arterial phase. Several lymph nodes could also be observed, the biggest one being approximately 3.9 cm in diameter; B: A positron emission tomography-computer tomography on admission showed a high FDG (fluorodeoxyglucose) uptake mass located at the interval between the antrum and pancreas (white arrow). The maximum standardized uptake value (SUV max) was 11.7, and the retention index was 21.8%; C: A CT scan obtained 1 mo after discharge identified the spontaneous regression of the tumor.