title: Pseudoangiomatous stromal hyperplasia of the breast: a case report of a 12-year-old girl.
abstract: Pseudoangiomatous stromal hyperplasia (PASH) of the breast is a benign lesion, characterized by a dense proliferation of stromal mesenchymal cells of myofibroblastic origin forming empty, slit-like channels. We report PASH in a 12-year-old girl with a huge rapidly enlarged right breast. Biopsy of the mass showed histopathologic features characteristic of PASH. Immunohistochemical studies revealed diffuse positive membranous immunoreactivity to CD34. Although it is a benign lesion, lumpectomy was performed to minimize the damage from developing breast tissue.
authors.affiliation: Department of Radiology, Dammam Medical Complex, Dammam, Saudi Arabia.
authors.forename: Eman
authors.initials: E
authors.lastname: Almohawes
authors.affiliation: Department of Radiology, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.
authors.forename: Nuha
authors.initials: N
authors.lastname: Khoumais
authors.affiliation: Department of Pathology, College of Medicine, King Saud University and King Khalid University Hospital, Riyadh, Saudi Arabia.
authors.forename: Maria
authors.initials: M
authors.lastname: Arafah
keywords: Angiosarcoma; Mammography; Pseudoangiomatous stromal hyperplasia; Ultrasound