title: Endovascular papillary angioendothelioma (Dabska tumor)
abstract: The histological diagnosis of endovascular papillary angioendothelioma (EPA) (Dabska tumor) is controversial although the tumor is included in the World Health Organization classification. Papillary endothelial proliferation with a central hyaline core is one of the most characteristic features of EPA; however, this type of proliferation has been observed in other vascular tumors, such as angiosarcoma, retiform hemangioendothelioma and glomeruloid hemangioma. Several vascular tumors have EPA-like foci and EPA is not well defined generally. Endovascular papillary angioendothelioma may not be a distinct entity and may well include a heterogeneous group of lesions.
authors.forename: M
authors.initials: M
authors.lastname: Fukunaga
mesh_terms: D006258:Head and Neck Neoplasms / Q000473:pathology*; D006390:Hemangioendothelioma / Q000473:pathology*; D006801:Humans; D012878:Skin Neoplasms / Q000473:pathology; D019043:Vascular Neoplasms / Q000473:pathology