A 72-year-old Japanese woman was admitted because of vomiting and abdominal pain. An enhanced computed tomography scan showed a small intestinal obstruction due to ileal wall thickening and multiple liver metastases. Her serum alpha-fetoprotein (AFP) level was high at 1671.9ng/ml. An ileocecal resection was performed. The histological diagnosis was AFP-producing small intestinal cancer resembling the primitive gut epithelium of a fetus. The present case suggested that even intestinal cancer could produce AFP.

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