title: [Gastrointestinal Stromal Tumour (GIST). Case report].
abstract: In 1987 a 73 year old man was diagnosed with a malignant sarcoma of the anus. It was originally regarded as a leiomyosarcoma. Fourteen years later the original diagnoses of the specimen was reviewed and the diagnosis was changed to GIST (gastrointestinal stromal tumour). This diagnosis was confirmed with appropriate immunohistochemical staining on the tumour tissue. This is the first case of GIST in the anus diagnosed in Iceland.
authors.affiliation: Iceland University Hospital, Hringbraut, 101 Reykjavík.
authors.forename: Halla
authors.initials: H
authors.lastname: Vidarsdóttir
authors.forename: Páll Helgi
authors.initials: PH
authors.lastname: Möller
authors.forename: Geir
authors.initials: G
authors.lastname: Tryggvason
authors.forename: Sigurgeir
authors.initials: S
authors.lastname: Kjartansson
authors.forename: Jón Gunnlaugur
authors.initials: JG
authors.lastname: Jónasson
mesh_terms: D000368:Aged; D001005:Anus Neoplasms / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D046152:Gastrointestinal Stromal Tumors / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D007055:Iceland; D007150:Immunohistochemistry; D007890:Leiomyosarcoma / Q000175:diagnosis; D008297:Male