A case of a XXXX diagnosed with the aid of diffusion-weighted magnetic resonance imaging.

@entity1 @entity677 @entity417 @entity548 @entity1353 @entity5 @entity2467 @entity1820 @entity674 @entity2280
@entity674 ( @entity674 ) are the most common @entity1820 , and @entity548 is among the primary symptoms. If the @entity5 is located in the small intestine, diagnosis might be difficult because of its inaccessibility by endoscope. This report presents a case of duodenal @entity677 diagnosed with the aid of diffusion-weighted (DW) magnetic resonance imaging (MRI). A 66-year-old male was admitted to the hospital because of @entity1353 . The @entity1 demonstrated marked @entity417 . Esophagogastroduodenoscopy and colonoscopy revealed no involvement of the mucosa of the gastrointestinal tract in regard to the observed @entity548 . Thereafter, computed tomography was done and showed a tumorous lesion 4.2  cm in diameter located around the ligament of Treitz. The area showed significant high intensity by DW-MRI, strongly suggesting malignant character. Examination with a long endoscope demonstrated a large submucosal @entity5 with wide ulceration located at the third portion of the duodenum. The biopsy sample contained spindle-shaped cells that were positive for @entity2280 and @entity2467 on histochemistry, and the @entity5 was diagnosed as @entity677 . The @entity1 underwent surgery and survived for 16  months without any recurrence.
