title: Fast-growing pseudoangiomatous stromal hyperplasia of the breast: report of a case.
abstract: Pseudoangiomatous stromal hyperplasia (PASH) is a rare type of benign mesenchymal proliferative disease of the breast. Histologically, it is composed of a proliferation of spindle cells with inter-anastomosing vascular-like arrangement in the interlobular or interductal stroma. Clinically, pseudoangiomatous stromal hyperplasia is usually found in premenopausal women as a discrete, painless mass, which is firm and movable. We report a case of pseudoangiomatous stromal hyperplasia of the breast, which mimicked a malignant mass in that it grew rapidly and ultrasonography showed a lobulating contoured heterogeneous echotexture.
authors.affiliation: Department of Radiology, College of Medicine, Korea University, Guro Hospital, 97 Guro-dong, Guro-ku, Seoul 152-703, South Korea.
authors.forename: Kweon
authors.initials: K
authors.lastname: Yoo
authors.forename: Ok Hee
authors.initials: OH
authors.lastname: Woo
authors.forename: Hwan Seok
authors.initials: HS
authors.lastname: Yong
authors.forename: Aeree
authors.initials: A
authors.lastname: Kim
authors.forename: Woo Sang
authors.initials: WS
authors.lastname: Ryu
authors.forename: Bum Hwan
authors.initials: BH
authors.lastname: Koo
authors.forename: Eun-Young
authors.initials: EY
authors.lastname: Kang
mesh_terms: D000798:Angiomatosis / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D001707:Biopsy, Needle; D001941:Breast Diseases / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D001943:Breast Neoplasms / Q000175:diagnosis; D049109:Cell Proliferation; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D006965:Hyperplasia / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D008327:Mammography; D008408:Mastectomy; D008875:Middle Aged; D017154:Stromal Cells / Q000473:pathology*; D016217:Ultrasonography, Mammary