First symptoms may be subtle such as mild pain, flank tenderness, hematuria. Depending on blood loss, symptoms of hypovolemic shock may develop. Hematoma is usually contained in the retroperitoneum, allowing for a period of hemodynamic stability. Sometimes massive acute hemorrhage is seen when a hematoma ruptures Gerota's fascia and extends into the peritoneum. An ultrasound or CT scan can establish diagnosis, while lab tests may be inconclusive as changes of hematocrit or hemoglobin are not specific to the syndrome, while hematuria is not always present.
Wunderlich syndrome
Dressler syndrome
Havana syndrome
Michels Caskey syndrome
PHACE syndrome
Adams–Stokes syndrome
Crandall syndrome
Michels syndrome