Subcapsular perirenal hematoma

Last revised by Mohammad Taghi Niknejad on 15 Mar 2024

A subcapsular perirenal hematoma is a form of perirenal hematoma where blood accumulates beneath the renal capsular margin.

It can arise from a number of causes

Typically seen as crescentic hematoma peripherally encapsulating a portion of the kidney. The attenuation value depends on the age of the hemorrhage.

A spontaneous renal hematoma is thought to be initially reported by Bonet et.al in 1679 3.

On imaging consider

  • perirenal abscess: different clinical context unless rarely when superinfection of a perirenal hematoma leads to an abscess

Cases and figures

  • Case 1: on CT
  • Case 1: on ultrasound
  • Case 2: post ESWL
  • Case 3: post ESWL
  • Case 4
  • Case 5: from renal angiomyolipoma
  • Case 6: from spontaneous rupture of RCC
  • Case 7: post ESWL
  • Case 8: post ESWL
  • Case 9
  • Case 10
  • Case 11
  • Case 12: duplex collecting system with lower moiety obstruction
  • Case 13: causes Page kidney
  • Case 14: causes Page kidney

Imaging differential diagnosis

  • Renal abscess
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