Duodenal adenoma with atypia following oral administration of tegafur.
D000236:Adenoma / Q000139:chemically induced*; D004379:Duodenal Neoplasms / Q000139:chemically induced*; D005472:Fluorouracil / Q000009:adverse effects* / Q000031:analogs & derivatives*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011182:Postoperative Care; D013274:Stomach Neoplasms / Q000601:surgery; D005641:Tegafur / Q000009:adverse effects*
D005641:Tegafur; D005472:Fluorouracil