title: Synovial haemangiopericytoma of the knee joint.
abstract: We report a case of haemangiopericytoma occurring intra-articularly in the synovium of the knee joint. This is a rare tumour which, as far as is known to the authors, has not previously been described in a subsynovial site.
authors.affiliation: Institute of Pathology, Odense University Hospital, Denmark.
authors.forename: C
authors.initials: C
authors.lastname: Ladefoged
authors.forename: N K
authors.initials: NK
authors.lastname: Jensen
mesh_terms: D005260:Female; D006393:Hemangiopericytoma / Q000473:pathology*; D006801:Humans; D007719:Knee Joint / Q000473:pathology*; D008875:Middle Aged; D009383:Neoplasms, Vascular Tissue / Q000473:pathology*