title: An Unusual "Collision Tumour" of the Prostate Gland and Rectum.
abstract: Collision tumours of two different histopathological processes are rare. We describe a case of a patient with known low grade prostate adenocarcinoma developing a rectal GIST, which was diagnosed with combined imaging modalities of MR and ultrasound and confirmed by transrectal ultrasound guided biopsy.
authors.affiliation: Department of Abdominal Imaging, Vancouver General Hospital, Vancouver, BC, Canada V57 1M9.
authors.forename: C F
authors.initials: CF
authors.lastname: Healy
authors.affiliation: Department of Abdominal Imaging, Vancouver General Hospital, Vancouver, BC, Canada V57 1M9.
authors.forename: D
authors.initials: D
authors.lastname: Ferguson
authors.affiliation: Department of Abdominal Imaging, Vancouver General Hospital, Vancouver, BC, Canada V57 1M9.
authors.forename: M F
authors.initials: MF
authors.lastname: Mohammed
authors.affiliation: Department of Abdominal Imaging, Vancouver General Hospital, Vancouver, BC, Canada V57 1M9.
authors.forename: J
authors.initials: J
authors.lastname: Waterhouse
authors.affiliation: Department of Abdominal Imaging, Vancouver General Hospital, Vancouver, BC, Canada V57 1M9.
authors.forename: A C
authors.initials: AC
authors.lastname: Harris
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D046152:Gastrointestinal Stromal Tumors / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D011467:Prostate / Q000473:pathology; D011471:Prostatic Neoplasms / Q000473:pathology*; D012004:Rectal Neoplasms / Q000473:pathology*; D012007:Rectum / Q000473:pathology