臀部：PHAT？讨论病例【91360.软组织823】

刘伟

一公里生命
病例(形态)分享第536例
臀部



一公里生命
IHC work up is limited though but CD34 highlighted the vascular channels and also showed focal membranous staining of the larger cells in the stroma. Ki-67 is low.Desmin, MCK, SMA and CD99 are all negative.
Pleomorphic hyalinizing angiectatic tumor (PHAT) of soft parts


It is a rare, nonmetastasizing tumor of uncertain lineage characterized by clusters of ectatic, fibrin-lined, thin-walled vessels surrounded by a mitotically inert, spindled, pleomorphic, neoplastic stroma.