Exophytic renal angiomyolipoma

Case contributed by Charlie Chia-Tsong Hsu , 14 Jun 2012
Diagnosis almost certain
Changed by Matt A. Morgan, 12 Nov 2015

Updates to Case Attributes

Diagnostic Certainty was set to .
Presentation was changed:
45-year-old female with historyHistory of recurrent urinary tract infection. Microscopic haematuria on urine analysis.
Race changed from Caucasian to .

Tags changed:

  • kidney
  • angiomyolipoma
  • ultrasound
  • ct abdomen and pelvis

Updates to Study Attributes

Findings was changed:

(1)

  1. B-mode ultrasound image demonstrates an exophytic hyperechoic mass with smooth external margin arising from the right kidney. The exophytic renal mass makes an angular interface with the renal parenchyma.(2)
  2. Color- Doppler ultrasound image demonstrates two distinct vessels entering the exophytic mass. The vessels show opposite color- Doppler flow and isare likely to represent an arteriole and venule pair.
Images Changes:

Image Ultrasound (Longitudinal) ( update )

Perspective was set to Longitudinal.
Single Or Stack Root was set to .

Image Ultrasound (Longitudinal) ( update )

Perspective was set to Longitudinal.
Single Or Stack Root was set to .

Updates to Study Attributes

Findings was changed:

Non-contrast CT images show foci of fat density (<-20;20 HU) within the smooth marginated exophytic mass which is isodense to renal parenchyma. 

Contrast CT images, corticomedullary phase, again illustrate the angular interface of the exophytic renal mass with the renal parenchyma. 

Images Changes:

Image CT (C+ arterial phase) ( update )

Perspective was set to Coronal.

Image CT (non-contrast) ( update )

Perspective was set to Axial.

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