Fig. 1From: Pulmonary sclerosing pneumocytoma containing spindle cells with sarcomatoid features: a case report with literature reviewA, B Typical PSP area of papillary and hemorrhage growth pattern at the periphery of the tumor (H&E stain, × 100, × 200), with positive immunohistochemical staining of TTF-1 (C) and EMA (D) (× 100)Back to article page