Medullary nephrocalcinosis and renal calculi

Case contributed by Dr Bruno Di Muzio


25-years-old female with right pain that tends to radiate to the flank and lumbar areas.

Patient Data

Age: 25 years
Gender: Female


Increased echogenicity of the pyramid and renal calculi in the right kidney (Portuguese: "Rim Direito").


Case Discussion

Ultrasound demonstrates hyperechogenic foci with posterior acoustic shadowing consistent with renal calculi. The pyramids are diffusely echogenic, but without shadowing, suggestive of medullary nephrocalcinosis. Although nephrocalcinosis may eventually progress to involve most of the pyramid, acoustic shadowing is rarely seen even in this situation.

Acoustic shadowing may be appreciated only in rare cases of extreme involvement of the pyramids or if there is the development of associated calculi in the adjacent calices, like in this case.

PlayAdd to Share

Case information

rID: 12141
Published: 24th Oct 2010
Last edited: 16th Jul 2018
System: Urogenital
Inclusion in quiz mode: Included

Updating… Please wait.

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.