Perirenal hematoma

Laceration Cortical laceration (<1 cm) without urinary extravasation, nonexpanding perirenal hematoma Hematoma Perirenal hematoma (contained, nonexpanding)... 

Hayashi H, Okamoto I, Nakagawa K. Perirenal hematoma assodated with bevacizumab treatment. Invest New Drugs 2012 30(2) 808-9. 

Fig. 24.10a,b. Retroperitoneal Wilms tumor rupture in a 9-year-old girl presenting with acute abdominal pain. Unenhanced CT scan (a) shows a perirenal hematoma (H). Enhanced CT (b) shows a subcapsular effusion related to tumor rupture (asterisk). Wilm s tumor (M)... 

A small perinephric hematoma is common but active intervention is rarely necessary. However, an infected hematoma, resulting in a perirenal abscess, requires percutaneous drainage. 

Ultrasound is efficient to show perirenal collected fluid, hematoma or a mixture of urine and blood. A focal impression on the kidney is identified in subcapsular hematoma, while a collection with a ruptured capsula tends to surround and displace the whole kidney. Renal contusion can be identified as... 

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