Fig. 4
From: Carney’s triad in an adult male from a tertiary care center in India: a case report
Photomicrographs showing a GIST, predominantly composed of pleomorphic epithelioid cells (marked by arrows) with moderate amount of eosinophilic cytoplasm, occasional nuclear pseudoinclusions (B), and signet ring type of tumor cells (blue arrows, C) (A ×100, B and C ×200). The tumor cells show membranous and cytoplasmic positivity (arrows) for CD117 (D ×100) and DOG-1 (E ×200) stains (marked by arrow). The tumor was negative for SDH B stain, while the stain is positive in vascular endothelial cells (marked by arrows), used as an internal control (F ×200)