Outcomes of urethral calculi patients in an endemic region and an undiagnosed primary fossa navicularis calculus

Abstract

Urethral calculus is a rare form of urolithiasis with an incidence lower than 0.3%. We determined the outcomes of 15 patients with urethral stone, of which 8 were pediatric, including an undiagnosed primary fossa navicularis calculus. Fifteen consecutive male patients, of whom eight were children, with urethral calculi were assessed between 2000 and 2005 with a mean of 19 months' follow-up. All stones were fusiform in shape and solitary. Acute urinary retention, interrupted or weak stream, pain (penile, urethral, perineal) and gross hematuria were the main presenting symptoms in 7 (46.7%), 4 (26.7%), 3 (20%) and 1 (6.6%) patient, respectively. Six of them had accompanying urethral pathologies such as stenosis (primary or with hypospadias) and diverticulum. Two patients were associated with upper urinary tract calculi but none of them secondary to bladder calculi. A 50-year-old patient with a primary urethral stone disease had urethral meatal stenosis accompanied by lifelong lower urinary tract symptoms. Unlike the past reports, urethral stones secondary to bladder calculi were decreasing, especially in the pediatric population. However, the pediatric patients in their first decade are still under risk secondary to the upper urinary tract calculi or the primary ones.

A Rare Condition of Multiple Urethral Stones With Meatal Stenosis

“…(2,4,6) Kamal et al examined 51 patients with urethral stones and found 86% of patients with calcium oxalate stones, 6% with struvite stones and 2% with uric acid stones. (1) As in the present case, the calcium oxalate calculi likely originated in urethra or got obstructed in urethra due to meatal stenosis.…”

“…[1] Very few numbers of cases have been reported on multiple urethral stones. However, no case has been reported of painless multiple urethral stones via a standard PubMed search on the topic.…”

Multiple urethral calculus misdiagnosed as urethral stricture: The role of imaging in unknotting the confusion

“…Failure to diagnose impacted urethral stone can lead to long term urethral damage, renal insufficiency and incontinence. 1,2,3,4,5,6 The aim of this case report therefore is to highlight and emphasize the role of imaging in the prompt diagnosis and management of urethral calculi.…”

Giant Fossa Navicularis Calculus with Urethro-Cutaneous Fistula and Renal failure

“…The urethra is an infrequent location, accounting for no more than 0.3% of urinary calculi disease cases [1]. 33% to 88 % calculi found in posterior urethra, 8% to 58% are present in bulbar and penile urethra whereas only 4% to 11 % calculus found in fossa navicularis [2].…”