IOTW: Simple renal cyst

Posted on: March 14, 2020, by :

This post illustrates the difference between a simple renal cyst and hydronephrosis. The cyst is located within the cortex, is anechoic, well-circumscribed, does not branch out into the kidney, and is not connected to the ureter. In contrast, hydronephrosis is not well-circumscribed, it branches into the kidney, and is connected to the ureter.

Coronal view of kidney
Coronal view of kidney with a simple cyst
Coronal view of kidney with a simple cyst
Coronal view of kidney with a hydronephrosis. Color has been added to show that the anechoic area is not a large blood vessel
Coronal view of kidney with a hydronephrosis. Color has been added to show that the anechoic area is not a large blood vessel

Mary Kate Claiborne

Pediatric Emergency Medicine Attending at Children's National Medical Center
Mary Kate is from Augusta, Georgia. She attended Notre Dame for undergrad and then quickly returned to the warm weather in the South, attending medical school in Savannah, Georgia. She completed residency at University of Texas at Houston and PEM fellowship at Phoenix Children's Hospital. She is currently working as a PEM attending while also completing an ultrasound fellowship at CNMC. In her free time, Mary Kate enjoys running, tennis, cooking, spin class, coffee, and visiting family.
Mary Kate Claiborne

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