title: Epithelioid hemangioendothelioma of soft tissue: report of a case with ultrastructural observations.
abstract: The ultrastructure of an epithelioid hemangioendothelioma arising in the soft tissues of the neck of an 18-year-old female is reported. Comparison with similar tumors in other sites from the authors' electron microscopy files indicates that diffuse nonspecific intermediate filaments, pinocytotic vesicles, intracytoplasmic lumens, and pericytic cells are frequent but variable features of this neoplasm.
authors.affiliation: Department of Pathology, University of Texas M. D. Anderson Cancer Center, Houston 77030, USA.
authors.forename: M
authors.initials: M
authors.lastname: Vasquez
authors.forename: N G
authors.initials: NG
authors.lastname: Ordóñez
authors.forename: G W
authors.initials: GW
authors.lastname: English
authors.forename: B
authors.initials: B
authors.lastname: Mackay
mesh_terms: D000293:Adolescent; D005260:Female; D006258:Head and Neck Neoplasms / Q000473:pathology / Q000648:ultrastructure*; D018323:Hemangioendothelioma, Epithelioid / Q000473:pathology / Q000648:ultrastructure*; D006801:Humans; D008854:Microscopy, Electron; D012983:Soft Tissue Neoplasms / Q000473:pathology / Q000648:ultrastructure*