A newborn boy had gross hematuria caused by hemangiomas of the bladder
. The sonographic examination and the voiding cystourethrogram showed
an irregular and thick bladder wall with a lesion extending into the v
esical lumen. Cystoscopic examination and biopsy of the lesions were d
iagnostic of hemangioma. Immediately after lesion fulguration, the hem
aturia disappeared, and 3 weeks later the follow-up ultrasound examina
tion showed resolution of the lesion. At 1 year, the patient's urinaly
sis and ultrasound scan were normal. To our knowledge, this is the fir
st reported case of hematuria in a newborn caused by a bleeding hemang
ioma of the bladder.