title: An unusual etiology of a subclavian artery aneurysm.
abstract: A 22-year-old woman presented with a 3-month history of a pulsatile swelling in the right supraclavicular region. A CT angiogram revealed an aneurysm arising from the distal right subclavian artery. At surgery, the subclavian artery was almost entirely replaced by a well-vascularized tumor mass. The vascular tumor along with the native vessel was excised and replaced with a vascular prosthesis. Biopsy was suggestive of an epithelioid hemangioma (EH). In conclusion, an EH is a rare vascular tumor. The presence of vascular hyperplasia with plump endothelial cells protruding into the lumen is the most important discriminator in establishing the diagnosis of EH. Vascular neoplasms presenting as aneurysms should be considered, especially if other etiologies can be excluded.
authors.affiliation: Surgery Unit 2 (Vascular Surgery), Christian Medical College, India. drdevdeepak2000@yahoo.com
authors.forename: Andrew Dheepak
authors.initials: AD
authors.lastname: Selvaraj
authors.forename: Edwin
authors.initials: E
authors.lastname: Stephen
authors.forename: Shyamkumar Nidugala
authors.initials: SN
authors.lastname: Keshava
authors.forename: Sunil
authors.initials: S
authors.lastname: Agarwal
authors.forename: Sanjeev
authors.initials: S
authors.lastname: Shah
mesh_terms: D000783:Aneurysm / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D001706:Biopsy; D019917:Blood Vessel Prosthesis Implantation; D015622:Epithelioid Cells / Q000473:pathology*; D005260:Female; D006391:Hemangioma / Q000150:complications* / Q000473:pathology / Q000601:surgery; D006801:Humans; D006965:Hyperplasia; D013348:Subclavian Artery / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed; D019043:Vascular Neoplasms / Q000150:complications* / Q000473:pathology / Q000601:surgery; D055815:Young Adult