Fig. 3From: First report of pulmonary sclerosing pneomucytoma with malignant transformation in both cuboidal surface cells and stromal round cells: a case report(a, b, c) Tumor nodule showed surface cells (yellow arrow) with atypical adenomatous hyperplasia transformed into adenocarcinoma (black arrow) (h&e). (d) Ki-67 proliferation index was significantly increased in malignant area (black area)Back to article page