Calcifying fibrous pseudotumor of the pleura.
Calcifying fibrous pseudotumor is an uncommon benign lesion that has unique histologic features. We report a case of calcifying fibrous pseudotumor of the pleura occurring in a 31-year-old woman. A computed tomographic scan revealed a pleural mass in the right anterior costophrenic angle. The excised mass was well circumscribed, nonencapsulated, solid, and firm. The tumor showed dense hyalinized collagenous tissue interspersed with spindle cells, psammomatous calcifications, and a predominantly lymphoplasmocytic infiltrate. Most spindle cells were diffusely positive for vimentin, focally positive for CD34, and negative for desmins, smooth muscle actin, S-100 protein, and anaplastic lymphoma kinase-1.
Jang
Ki Seok
KS
Department of Pathology, College of Medicine, Hanyang University, Seoul, South Korea.
Oh
Young-Ha
YH
Han
Hong Xiu
HX
Chon
Soon-Ho
SH
Chung
Won Sang
WS
Park
Chan Kum
CK
Paik
Seung Sam
SS
D000328:Adult; D002114:Calcinosis / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D005355:Fibrosis / Q000000981:diagnostic imaging; D006801:Humans; D010994:Pleura / Q000000981:diagnostic imaging / Q000473:pathology; D010997:Pleural Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D011859:Radiography; D012983:Soft Tissue Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology