title: A Rare Case of Omentum Invasive Prostate Cancer: Staging With PSMA PET/CT Imaging and Response to Systemic Therapy.
abstract: The omentum is a rare metastatic site for prostatic adenocarcinoma. We present a case of metastatic castrate-resistant prostate cancer, with progressive omentum invasive prostate cancer identified on prostate-specific membrane antigen (PSMA) PET/CT scan. Omental biopsy revealed metastatic prostate adenocarcinoma, and cabazitaxel chemotherapy was instituted with a prostate-specific antigen biochemical response. Repeat PSMA PET/CT imaging revealed increased avidity in omental metastasis. Despite prostate-specific antigen response, PSMA PET/CT did not correlate with a therapeutic response.
authors.affiliation: From the *Princess Alexandra Hospital; †School of Medicine, University of Queensland; and ‡Queensland University of Technology, Brisbane, Australia.
authors.forename: Rahul
authors.initials: R
authors.lastname: Ladwa
authors.forename: Sonja
authors.initials: S
authors.lastname: Gustafson
authors.forename: Elizabeth
authors.initials: E
authors.lastname: McCaffrey
authors.forename: Kenneth
authors.initials: K
authors.lastname: Miles
authors.forename: Kenneth
authors.initials: K
authors.lastname: O'Byrne
mesh_terms: D000954:Antigens, Surface / Q000378:metabolism*; D043425:Glutamate Carboxypeptidase II / Q000378:metabolism*; D006801:Humans; D008297:Male; D009367:Neoplasm Staging; D009852:Omentum / Q000473:pathology*; D010534:Peritoneal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000556:secondary* / Q000628:therapy; D000072078:Positron Emission Tomography Computed Tomography; D011471:Prostatic Neoplasms / Q000473:pathology*; D016896:Treatment Outcome
chemical_list: D000954:Antigens, Surface; C473848:FOLH1 protein, human; D043425:Glutamate Carboxypeptidase II