Fig. 2From: Malignant perivascular epithelioid cell tumor of the lung synchronous with a primary adenocarcinoma: one case report and review of the literatureIntraoperative frozen section. a The middle lobe tumor composed of atypical epithelioid neoplasm cells organized in a angiopericytoma-like pattern, growing in the interstitial with abundant clear or granular cytoplasm. b The small solid nodule suggested a poor differentiated adenocarcinoma (original magnification × 200)Back to article page