Urachal Remnant Calcification: A Rare Cause of Calcification Within the Urinary Bladder

Abstract

Calcification of the urachal remnant is a rare cause of urinary bladder calcification. We present a case of calcification of the urachal remnant found incidentally on computed tomography (CT) scan in the setting of trauma. Our case clearly illustrates that reformatting images in the sagittal plane can clearly delineate the median umbilical ligament and its relationship to the calcification for confirmation of the diagnosis. Recognition of the characteristic appearance of this entity ensures prompt diagnosis and avoids unnecessary workup for other causes of calcification within the bladder.

A Rare Case of Urachal Remnant with Calculus Just Above the Bladder

“…Rawal and Maldjian demonstrated a rare case of urachal remnant calcification with a 7 mm size located at the anterior bladder wall at the embryological urachus insertion on a CT scan. They stated that two important factors that cause urachal calcification are urachal carcinoma and bladder infections, including schistosomiasis and tuberculosis (8).…”