Renal hemangioma

Abstract

Introduction: Renal hemangioma is a relatively rare benign tumor, seldom diagnosed as a cause of hematuria. Case report: A female 40-year old patient presented with continuous gross hematuria, anemia and episodic right lumbar pain, with onset about 3 months previously. The patient underwent multiple blood transfusions during her hospital stay and extensive imaging propedeutics was performed. Semirigid ureterorenoscopy evidenced a bleeding focus in the upper calix of the right kidney, with endoscopic treatment being unfeasible.The patient underwent right upper pole nephrectomy and presented a favorable outcome. Histopathological analysis of the surgical specimen showed that it was a renal hemangioma.Comments: Imaging methods usually employed for diagnostic investigation of hematuria do not have good sensitivity for renal hemangioma. However, they are important to exclude the most frequent differential diagnoses. The ureterorenoscopy is the diagnostic method of choice and endoscopic treatment can be feasible when the lesion is accessible and electrocautery or laser are available. We emphasize the open surgical treatment as a therapeutic option upon failure of less invasive methods.

A case report of a renal anastomosing hemangioma and a literature review: an unusual variant histologically mimicking angiosarcoma

“…They include a range of benign and malignant lesions, but most of these lesions are benign [3]. Though vascular tumors of the kidney are extremely unusual, hemangiomas of the kidney remain the most common renal vascular tumor [8–10]; in addition, rare cases such as hemangioblastoma was reported in kidney [11]. …”

Ureteroscopic Diagnosis and Povidone Iodine Treatment for Chronic Unilateral Hematuria Caused by Benign Lesions

“…In the past, nephrectomy and heminephrectomy were performed in some patients [ 17 ], but if the lesions are benign, removing the kidney is unacceptable in the current medical era. Moreover, the hematuria could be bilateral.…”

Renal Capillary Hemangioma Mimicking Urothelial Carcinoma, A Case Report and Review of the Literature

“…There are very rare case reports of renal capillary hemangioma (5). To the best of our knowledge, there have been less than 30 cases of renal capillary hemangioma reported in the English literature since 2000 (6-14).…”