title: Aneurysmal benign fibrous histiocytoma with atrophic features.
abstract: Aneurysmal benign fibrous histiocytoma is an uncommon pathologic variant of dermatofibroma. In addition to the features of a typical dermatofibroma, it has large cleft-like or cavernous blood-filled spaces with numerous hemosiderin pigments. It should be differentiated from angiomatoid malignant fibrous histiocytoma, malignant melanoma, and vascular tumors such as Kaposi's sarcoma and angiosarcoma. Atrophic dermatofibroma is also a rare variant of dermatofibroma, and the combination of aneurysmal and atrophic features is rarer still. We report a case of aneurysmal benign fibrous histiocytoma with atrophic features in a 27-year-old male who had a grayish-brown atrophic patchy lesion on his back for 2 years.
authors.affiliation: Department of Dermatology, Seoul National University College of Medicine, Boramae Medical Center, Seoul, Korea.
authors.forename: Jung Won
authors.initials: JW
authors.lastname: Shin
authors.forename: Hyun Sun
authors.initials: HS
authors.lastname: Park
authors.forename: Byoung Kwon
authors.initials: BK
authors.lastname: Kim
authors.forename: Young A
authors.initials: YA
authors.lastname: Kim
authors.forename: Myung-Good
authors.initials: MG
authors.lastname: Kim
authors.forename: Chong Hyun
authors.initials: CH
authors.lastname: Won
authors.forename: Soyun
authors.initials: S
authors.lastname: Cho