Granulomatous reaction in hepatic inflammatory angiomyolipoma after chemoembolization and spontaneous rupture

Figure 2 Histopathological features of the nodule. A: The nodule contained numerous inflammatory cells. Thick-walled abnormal arteries were observed peripheral to and inside of the nodule [hematoxylin and eosin (HE), × 40]; B: Epithelioid granulomatous features were frequently observed in the nodule (HE, × 200); C: Some of the multinucleated giant cells contained amorphous material (HE, × 400); D: The amorphous material was positively stained by Oil Red O staining (Oil Red O staining, × 400); E: Among the infiltrating inflammatory cells, spindled, histiocytoid or myoid tumor cells with eosinophilic cytoplasm and oval-shaped atypical nuclei with distinct nucleoli were found (HE, × 400).