title: "Pseudosarcoma" in a pregnant woman.
abstract: BACKGROUND
  Intravascular fasciitis (IVF) is a rare benign condition characterised by reactive myofibroblastic proliferation arising from the superficial or deep fascia and involving arteries and/or veins. It is a distinct variant of the more common condition of nodular fasciitis, which possesses similar clinical and histological features to IVF, but lacks vascular invasion. A thorough review of the literature revealed 26 reported cases of IVF.
  
  
  METHODS
  We report a case of IVF in a 16-week pregnant lady affecting the hypothenar eminence of the hand associated with the ulnar artery.
  
  
  CONCLUSIONS
  The characteristic involvement of muscular arteries and veins by reactive myofibroblastic proliferation in IVF suggests a malignant component and often leads to an inappropriate diagnosis for this benign condition. We propose that hormone-related changes associated with pregnancy may play an important role in the aetiopathogenesis of this myofibroblastic lesion.
authors.affiliation: Royal Free and University College London Hospitals, Royal National Orthopaedic Hospital, Bone Tumour Unit, Brockley Hill, Stanmore, Middlesex, HA7 4L, UK. amarjitanand@doctors.org.uk
authors.forename: Amarjit
authors.initials: A
authors.lastname: Anand
authors.forename: Eva Maria
authors.initials: EM
authors.lastname: Tsapakis
authors.forename: Ali A
authors.initials: AA
authors.lastname: Narvani
authors.forename: Ali
authors.initials: A
authors.lastname: Alhakim
authors.forename: Steve R
authors.initials: SR
authors.lastname: Cannon
authors.forename: Eleftherios
authors.initials: E
authors.lastname: Tsiridis
mesh_terms: D000328:Adult; D005208:Fasciitis / Q000473:pathology* / Q000601:surgery; D005260:Female; D006225:Hand; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000473:pathology* / Q000601:surgery; D014652:Vascular Diseases / Q000473:pathology* / Q000601:surgery; D055815:Young Adult