[A case of preputial calculi].

A case of a 73-year-old patient with preputial calculi is presented. The patient visited our hospital complaining of consciousness loss. It was impossible to place a catheter because of complete phimosis. Palpatory examination suggested the presence of stones in preputial cavity. Dorsal incision was made. After pus discharge nine small stones were extirpated. Ammonium hydrogen urate (96%) and calcium phosphate (4%) were found in these stones with infrared spectroscopic analysis. Bacteriodes ureolytcus and Peptostreptcoccus asaccharolyticus were isolated from urine specimen.