Sonographic Diagnosis of Urethral Anomalies in Infants

Abstract

Our data show that sonography of the urethra is a valuable tool for diagnosis of urethral anomalies. Especially, negative findings on sonography are highly suggestive of the absence of urethral anomalies. Positive or equivocal sonographic findings should indicate VCUG.

Posterior urethral valve with unilateral vesicoureteral reflux and patent urachus: A rare combination of urinary tract anomaliess

“…[ 1 ] It is commonly associated with PUV as seen in this case. [ 5 8 ] In the majority of cases, it occurs as a result of a primary maturation abnormality of the vesicoureteral junction or a short distal ureteric submucosal tunnel in the bladder that alters the function of the valve mechanism. [ 6 10 ]…”

“…[ 1 2 3 4 ] Vesicoureteral reflux (VUR) is commonly associated with PUV[ 5 6 ] and is present in 50% of cases. [ 7 8 ] Patent urachus frequently coexists with congenital lower urinary tract obstruction and it is associated with PUVs in about one-third of cases. [ 9 10 ]…”

High-resolution perineal ultrasound of a paraurethral cyst in a neonate (2008: 8b)

“…To avoid these semi-invasive procedures, ultrasound can be of additional help to differentiate between the above-mentioned three most common entities, each requiring a totally different approach [8]. We have used a high frequency linear array transducer (12-5 MHz) and applied the panoramic approach to enlarge the region of interest in order to evaluate more clearly the relation of the mass with the surrounding structures.…”

Lower urinary tract obstruction in male children–a report of three cases.

“…In a review of the radiology database on the sonographic diagnosis of urethral anomalies in infants, Helmut Schoellnast et al found that the overall sensitivity of urethral sonography for detection of urethral anomalies was 100%; specificity, 94%; positive predictive value, 58%; negative predictive value, 100%; and accuracy, 94% [8].…”