Florid Mesothelial Hyperplasia Associated with Abdominal Wall Endometriosis Mimicking Invasive Carcinoma

Figure 2

Immunohistochemical stains for the mesothelial markers calretinin (a) and WT-1 (b) are strongly positive. Cytokeratin 7 (c) and cytokeratin 5 (d) are also positive (all 40x). These immunostains highlight the pseudoinfiltrative architecture at low-magnification images.

(a)

(b)

(c)

(d)