Case report: inflammatory myofibroblastic tumor of the duodenum.
BACKGROUND
We report a very rare case of inflammatory myofibroblastic tumor of the duodenum. A 16-year-old boy underwent esophagogastroduodenoscopy for intermittent epigastric pain, night sweats, and malaise.


METHODS
An exophytic mass lesion was found in the first part of the duodenum, but biopsies were non-diagnostic. Computed tomography confirmed a 60-mm mass with no lymphadenopathy, and the patient underwent surgical resection. Histology revealed spindle cells with the morphological and immunophenotypical profile of myofibroblasts on a background of mixed inflammatory infiltrate, typical of inflammatory myofibroblastic tumor. Six months after surgery, the patient developed a recurrence, and this was successfully treated by immunosuppression. Currently, the patient is asymptomatic, and there is no radiological or pathological evidence of disease.
Wynn
G R
GR
Department of Surgery, St Thomas' Hospital, North Wing, London, SE1 7EH, UK. gr.wynn@virgin.net
Giles
A
A
Steger
A S
AS
Wilkinson
M L
ML
D000293:Adolescent; D004379:Duodenal Neoplasms / Q000473:pathology*; D016099:Endoscopy, Gastrointestinal; D006104:Granuloma, Plasma Cell / Q000473:pathology*; D006801:Humans; D008297:Male; D009379:Neoplasms, Muscle Tissue / Q000473:pathology*