Fig. 1
From: Cyclin D1 immunohistochemical staining to separate benign from malignant mesothelial proliferations
Prominent cyclin D1 staining in vascular endothelium in a case of organizing pleuritis. Although staining is strong when present (and serves as a good internal control when positive), it is very patchy. In this case the spindled mesothelial cells are negative
