title: Incidental diagnosis of diffuse large B-cell lymphoma by 11C-choline PET/CT in a patient with biochemical recurrence of prostate cancer.
abstract: The main indication for C-choline PET/CT in prostate cancer patients is the early localization of biochemical recurrence after radical treatment. However, any C-choline uptake should be assessed in terms of physiological distribution and patterns of tumor spread. Therefore, tracer-avid lesions in unexpected sites should be carefully addressed because the diagnosis of other malignancies has important therapeutic implications. We present a patient with biochemical recurrence of prostate cancer treated with radiotherapy. C-choline PET/CT showed local recurrence and inguinal lymph node uptake. Because of its location beyond typically prostatic lymphatic spread, resection was performed. Histology confirmed a diffuse large B-cell lymphoma.
authors: From the CETIR Unidad PET/TC, Barcelona, Spain.
authors: Jr Garcia
authors: JG
authors: Garzon
authors: Pere
authors: P
authors: Bassa
authors: Merce
authors: M
authors: Moragas
authors: Marina
authors: M
authors: Soler
authors: Eduard
authors: E
authors: Riera
mesh_terms: D000368:Aged; D002250:Carbon Radioisotopes; D002794:Choline; D006801:Humans; D033162:Incidental Findings; D016403:Lymphoma, Large B-Cell, Diffuse / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D064847:Multimodal Imaging; D049268:Positron-Emission Tomography; D017430:Prostate-Specific Antigen / Q000097:blood*; D011471:Prostatic Neoplasms / Q000175:diagnosis*; D019275:Radiopharmaceuticals; D014057:Tomography, X-Ray Computed
chemical_list: D002250:Carbon Radioisotopes; D019275:Radiopharmaceuticals; D017430:Prostate-Specific Antigen; D002794:Choline