Wunderlich syndrome = Spontaneous renal hemorrhage without trauma
Bleeding may occur into:
- Renal parenchyma
- Subcapsular space
- Perirenal space
- Retroperitoneum
Most common cause
- Renal angiomyolipoma (AML)
Abnormal vessels → aneurysm → rupture → bleeding → retroperitoneal hematoma
Classic triad = flank pain + mass + shock





