Rhabdomyosarcomatous Transformation of a Gastrointestinal Stromal Tumor following Treatment with Imatinib

Figure 1

CT scans from three time points showing a gastric mass. (a) Initial presentation. (b) Following 5 months of imatinib therapy. Note tumor response as compared to (a). (c) Following 10 months of imatinib therapy. Note tumor progression (tumor circled).

(a)

(b)

(c)