A case of benign gastric ulcer associated with Candida infection in a healt
hy adult is reported. The patient was a 46-year-old man complaining of epig
astralgia. Endoscopic examination of the upper digestive tract revealed an
elevated lesion with ulceration having an unclear border and thick exudates
. The clinical diagnosis based on endoscopic findings was a benign gastric
ulcer; however biopsy was performed to distinguish it from malignant lympho
ma. Histological examination of biopsy samples obtained from the base and t
he edge of the ulcer revealed numerous Candida. Therefore, the patient was
diagnosed with Candida-infected gastric ulcer. The ulcer resolved after the
administration of antiulcer drugs for 2 months. Predisposing factors for f
ungal infection were excluded. These observations suggest that, Candida-inf
ected gastric ulcer should be suspected in patients with a gastric submucos
al tumor-like lesion with a thick, yellowish-white coated ulcer of unclear
border on its summit, and this lesion should be distinguished from malignan
t diseases.