Abstract
Many cases of prostatic cystic disease are asymptomatic and are found incidentally by imaging examination. We encountered a case of utricular cyst with urinary tract infection. A one-year-old boy presented at our hospital with fever, crying on urination and abnormal urine odor. Laboratory findings revealed pyuria, and elevated white blood cell count and creactive protein level. Ultrasonography, computed tomography and magnetic resonance imaging showed a cystic lesion of approximately 40 mm diameter in his pelvis. The urinary tract infection improved after treatment with antibiotics and the cyst was anatomically diagnosed as a utricular cyst on the basis of cystourethroscopic findings. The cyst could not be confirmed 4 months after continuous prophylactic administration of antibiotics so surgical resection was not required. Although antibiotic prophylaxis has been discontinued for more than 1 year, there is no sign of recurrence to date. Urinary tract infections in childhood are sometimes complicated by congenital urological abnormalities. Therefore, the kidney and urinary tract system of children with upper-urinary tract infections may need to be examined. Utricular cysts are not often detected in childhood, but it is important for us to consider utricular cysts as a possible complication of urinary tract infection.
