Skip to main content
Fig. 3 | Diagnostic Pathology

Fig. 3

From: Pulmonary papillary adenoma presenting in central portion: a case report

Fig. 3

Immunohistochemical staining of the tumor. a, b, c, The lining cells were strongly positive for CK, CK7 and EMA respectively. d, The constant and strong membranous staining for β-catenin was seen in the tumor cells. e, Ki-67 proliferative index was less than 2 %. f, The CD68 staining highlighted the presence of histiocytes. g, the cells were diffusely positive for SPA. h, Scattered cells showed a weak staining for P53. i, the cells were also diffusely positive for P63. j, Napsin A was strongly and diffusely expressed in the tumor cells. k, TTF-1was positively expressed in the lining cells in contrast to the negative expression in the cells of the stroma. l, Vimentin was expressed in the stroma rather than the lining cells

Back to article page