title: Unusual isolated perineal recurrence in mucinous adenocarcinoma of the rectum after abdominoperineal resection: usefulness of dual-time-point FDG PET in evaluating mucinous tumors.
abstract: Application of dual-time-point FDG PET for mucinous adenocarcinoma has been rarely reported. Isolated perineal recurrence (after neoadjuvant chemoradiotherapy and abdominoperineal resection) was detected by dual-time-point FDG PET in a 41-year-old man with mucinous adenocarcinoma of the rectum. Correlative contrast-enhanced CT demonstrated circumscribed lobulated mass in the fatty tissue of the right perineal region, which was metastatic adenocarcinoma, on fine needle aspiration cytology. An SUVmax increase with time is consistently observed in mucinous tumors.
authors.affiliation: Radiation Medicine Centre, Bhabha Atomic Research Centre, Tata Memorial Hospital, Parel, Bombay, India. drsanb@yahoo.com
authors.forename: Sandip
authors.initials: S
authors.lastname: Basu
authors.forename: Seema
authors.initials: S
authors.lastname: Kembhavi
mesh_terms: D000005:Abdomen / Q000601:surgery*; D002288:Adenocarcinoma, Mucinous / Q000601:surgery*; D000328:Adult; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008297:Male; D009364:Neoplasm Recurrence, Local / Q000000981:diagnostic imaging*; D010502:Perineum / Q000601:surgery*; D049268:Positron-Emission Tomography; D012004:Rectal Neoplasms / Q000601:surgery*; D013997:Time Factors
chemical_list: D019788:Fluorodeoxyglucose F18