Case Report
1602752
EurUrol 1994;26:182-183
Prostatic Urethral Duplication:
An Unusual Form of Vertical
Symmetric Duplication
Mehmet Kihnça
Ahmet Arslanb
Mehmet Arslan*
Kadir Yilmaza
Atilia Semerciöz3
Departments of
a Urology and
b Biology and Genetics, Faculty of Medicine,
Selçuk University, Konya, Turkey
Key Words
Urethral duplication
Abstract
Urethral duplication is a rare anomaly that manifests itself in various ways. We present a case
with a prostatic urethral duplication without incontinence. To our knowledge this is the first
case to be reported and has been discussed within Effmann ’ s classification.
Introduction
nous. Endoscopic examination did not show any other pathologic
features.
Because of urinary tract obstruction, transurethral resection was
made. A No. 4 ureteral catheter was inserted into the duplicate on the
right. Excision was made starting from the duplicate on the left. Non-
membranous septal tissue was removed by transurethral resection,
and the urinary stasis was relieved. The indwelling 12-french urethral
catheter was removed 4 days after the operation. On the 7th day after
the operation the patient was discharged from the hospital. One
month later, postoperative control was made, and the patient was
uneventfully free of obstruction. At another follow-up, 5 months
after the operation, a voiding cystourethrogram did not show any
evidence of vesicoureteral reflux.
Urethral duplication is a rather rarely seen anomaly [1-5]. Blind-
ending incomplete urethral duplication is the most common among
the urethral duplication cases, is usually asymptomatic and requires
no treatment [1,3]. Clinically, complete patent duplication can occur
either as an isolated deviation or associated with other caudal anom -
alies [2, 3,6, 7], However, vertical urethral duplication in the prostat -
ic region was not reported before, and this is the only case having
such a reduplication of the urethra.
Case Report
A male boy, 8 years old, was referred to our clinic w ith a com-
plaint of urinary outflow obstruction. On the physical examination,
he had a normal penis and scrotum. He had no obvious physical
abnormalities. Urinary analysis did not show any infectious condi -
tion. Excretory urography followed by voiding cystourethrography
showed m ild ectasis of the right kidney pelvis and ureter, obstruction
caused by vesical changes and prostatic urethral duplication
(fig. 1, 2). A voiding cystourethrogram obtained later on revealed a
grade 1 vesicoureteral reflux (fig. 2). Endoscopic examination re-
vealed a vertical septum-like formation in the prostatic urethra and
light hypertrophy of the verumontanum; its thickness was about
2 mm. The vertical septum originated from the bladder neck, cir -
cumvented the verumontanum righthandedly and extended to the
membranous urethra. However, the septal tissue was nonmembra-
Discussion
Urethral duplication is a generally asymptomatic rare anomaly
and usually recognized as secondary to primary complaints. Com -
plaints related w ith urethral duplication are associated with double
urinary stream, incontinence, dysuria, recurrent urinary infections,
outflow obstruction or chordee [1, 2, 6, 8], and the magnitude of the
symptoms is usually related to the type of duplication [2]. Purcell [9]
reported an unusual accessory urethra which was separated from the
posterior urethra by a mucosal wall. Based on his cystoscopic obser-
vation it was presumed that when urine struck on the wall of the
accessory urethra it became enlarged and constricted the posterior
urethra causing urinary retention. The case reported here is symmet -
ric complete prostatic urethral duplication with a well-developed ver-
Doç. Dr. Mehmet Kilmç
Selçuk Üniversitesi
Tip Fakültesi
Üroloji ABD
42080-Konya (Turkey)
© 1994 S. Karger AG, Basel
0302-2838/94/0262-0182
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