Figure 6.
(a,b). Axial portal venous phase CT images (iodinated contrast media) of a 67-year-old male diagnosed with a primary GIST (arrows) of the stomach. (a) Pre-treatment imaging shows a large gastric mass with heterogeneous enhancement. (b) After 1.5 months of avapritinib treatment, the lesion has become hypodense (scale bars 5 cm).