肾血管瘤是一种不多见的疾病。通常为单个,很少量多个或双侧性。往往同时伴有脑、骨、肝或大肠的血管瘤。与种族、性别和肾脏位置无关。但女性或右侧肾脏的发生率稍高。临床上这种血管瘤可能无症状,主要症状是血尿,有时大量并/或反复发作。由于尿路造影不能显示病变部位,肾血管癌又是血尿稀有的原因,因此可能误诊为原发性血尿。当其他出血原因除外时肾动脉造影,需要时诊断性剖腹探查是可靠的诊断方法。作者在此报告的一例肾血管瘤,颇能反映出这一少见病的特征。 Renal hemangiomas are rare diseases. Usually single, rarely multiple or bilateral. Often accompanied by cerebral, bone, liver or large intestine hemangiomas. It has nothing to do with race, gender and kidney location. However, the incidence of female or right kidney is slightly higher. Clinically, this hemangioma may be asymptomatic. The main symptom is hematuria, and sometimes heavier and/or recurrent. Since urography fails to show lesions, renal vascular cancer is also a rare cause of hematuria, so it may be misdiagnosed as primary hematuria. Renal angiography, when other bleeding causes are excluded, and diagnostic laparotomy is a reliable diagnostic method when needed. The case of renal hemangioma reported by the author here can quite reflect the characteristics of this rare disease.