Spontaneous retroperitoneal hemorrhage is an uncommon entity and even rarer when the underlying cause is from the kidney. Renal tumors comprise the majority of atraumatic kidney rupture. Renal cell carcinoma and angiomyolipoma are the most common diseases in this group. Oral anticoagulant therapy and hemodialysis could be responsible for a few cases. In 3 reported cases no pathological explanation could be found. With the help of modern facilities, diagnosis can be made preoperatively and conservative surgery is indicated in these patients. However, nephrectomy is the treatment of choice for patients presenting with shock as the initial symptom or solid renal mass with perirenal hematoma.
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