title: Actinomycosis mimicking recurrent carcinoma after Whipple's operation.
abstract: Actinomycosis is a rare, chronic, spreading, suppurative, granulomatous and fibrosing infection. Actinomyces are normal inhabitants of the oral cavity and gastrointestinal tract. They rarely cause disease and are seldom reported as pathogens. Herein, we reported on a 69-year-old male patient who had undergone Whipple's operation due to ampulla Vater carcinoma, and became infected with actinomycosis at the pancreaticojejunostomy, which mimicked a recurrent malignancy. He was treated with radical resection of the mass at the pancreaticojejunostomy and had an uneventful postoperative course.
authors.affiliation: Department of General Surgery, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan, China.
authors.forename: Jun-Te
authors.initials: JT
authors.lastname: Hsu
authors.forename: Hung-Chieh
authors.initials: HC
authors.lastname: Lo
authors.forename: Yi-Yin
authors.initials: YY
authors.lastname: Jan
authors.forename: Han-Ming
authors.initials: HM
authors.lastname: Chen
mesh_terms: D000196:Actinomycosis / Q000175:diagnosis*; D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D007414:Intestinal Neoplasms / Q000175:diagnosis* / Q000601:surgery; D008297:Male; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis*; D010193:Pancreaticojejunostomy; D011183:Postoperative Complications / Q000175:diagnosis* / Q000382:microbiology