Gastrointestinal Stromal Tumor Induced Hypercalcemia

Figure 1

20x micrographs, (a–d). Spindle cell neoplasm (a) is more cellular when compared to surrounding liver tissue (b). The tumor cells of spindle cell neoplasm (a) appear uniform, with monomorphic nuclei and eosinophilic cytoplasm. Tumor cells stain strongly positive for CD117 (c) and DOG1 (d).

(a)

(b)

(c)

(d)