title: Primary pseudomyogenic haemangioendothelioma of bone: report of two cases.
abstract: Pseudomyogenic haemangioendothelioma (epithelioid sarcoma-like haemangioendothelioma) is a recently described, rarely metastasising neoplasm of the soft tissues that often presents as multiple discontinuous nodules in different tissue planes of a limb. This tumour type is extremely difficult to diagnose because no morphological evidence suggestive of endothelial differentiation is present to confirm a radiological suspicion of vascular neoplasm. All but one case published in the literature underline that bone involvement is secondary to deep and superficial soft tissue nodules. Here, we report two cases of primary bone pseudomyogenic haemangioendothelioma occurring in the radius and cuboid bone with a multifocal presentation.
authors.affiliation: Pathology Department, Rizzoli Institute, Via del Barbiano 1/10, 40136, Bologna, Italy, alberto.righi@ior.it.
authors.forename: Alberto
authors.initials: A
authors.lastname: Righi
authors.forename: Marco
authors.initials: M
authors.lastname: Gambarotti
authors.forename: Piero
authors.initials: P
authors.lastname: Picci
authors.forename: Angelo Paolo
authors.initials: AP
authors.lastname: Dei Tos
authors.forename: Daniel
authors.initials: D
authors.lastname: Vanel
mesh_terms: D000328:Adult; D000368:Aged; D001859:Bone Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery*; D005260:Female; D006390:Hemangioendothelioma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery*; D006801:Humans; D011859:Radiography; D016896:Treatment Outcome