title: A case of intravascular epithelioid hemangioendothelioma occurring 14 years after coil embolization for an extracranial internal carotid artery aneurysm.
abstract: Epithelioid hemangioendothelioma (EHE) is a rare neoplasm originating from various organs. The clinical outcome mostly depends on surgical resectability. The authors report an EHE of the extracranial internal carotid artery developed in a 59-year-old male patient 14 years after the intravascular coil embolization for a carotid aneurysm at the same site. Because the lesion was initially diagnosed as regrowth of the thrombosed aneurysm, decision for radical resection was delayed, and the patient died from rapid tumor progression. Differential diagnosis of atypical vascular mass lesions should include neoplasm, because initial radical resection may be the key to achieve a better prognosis.
authors.affiliation: Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan.
authors.forename: Shin-Ichiro
authors.initials: S
authors.lastname: Osawa
authors.forename: Atsushi
authors.initials: A
authors.lastname: Saito
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Shimizu
authors.forename: Takenori
authors.initials: T
authors.lastname: Ogawa
authors.forename: Mika
authors.initials: M
authors.lastname: Watanabe
authors.forename: Teiji
authors.initials: T
authors.lastname: Tominaga
mesh_terms: D000783:Aneurysm / Q000628:therapy*; D001706:Biopsy; D002340:Carotid Artery Diseases / Q000628:therapy*; D002343:Carotid Artery, Internal; D003951:Diagnostic Errors; D004621:Embolization, Therapeutic / Q000009:adverse effects*; D017809:Fatal Outcome; D018323:Hemangioendothelioma, Epithelioid / Q000175:diagnosis / Q000209:etiology* / Q000556:secondary / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D008175:Lung Neoplasms / Q000556:secondary; D008207:Lymphatic Metastasis; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D017211:Treatment Failure; D019043:Vascular Neoplasms / Q000175:diagnosis / Q000209:etiology* / Q000473:pathology / Q000601:surgery