IntroductionEpithelioid Hemangioendothelioma (EH) is an uncommon vascular neoplasm (endothelial origin) which can affect any type of tissue. It rarely occurs in head and neck region, and has unpredictable clinical behavior.
ObjectiveThe aim is to report a case of EH of unusual location (pterygomaxillary fissure) and histological rarity, andto establish an accurate differential diagnosis of EH and Juvenile Nasoangiofibroma (JNA).
Case reportA 19 year-old male with a chief complaint of recurrent epistaxis and an obstruction of the left nasal cavity. The diagnosis of JNA was suggested and surgery with tumor complete resection was the election treatment. However, clinical diagnosis was not confirmed postoperaively, through Immunohistochemistry (IHC). Histopathological findings showed a diagnostic reporting of EH. Tumor had no recurrence within three years after surgery.
DiscussionApart from the rarity of the condition, EH varies according to their location in asymptomatic or with few symptoms. The presence of violaceous lesions indicates a huge range of vascular tumors. Thus, IHC has assumed very important for diagnosis confirmation.
ConclusionThe localization of EH in perygomaxillary fissure is a rare condition withpoor prognosis. The treatment choice for EH was the complete ressection.Keywords: Epithelioid hemangioendotelioma; Head and neck neoplasms; Pterygomaxillary fissure Citation: