Incomplete Urethral Duplication Associated with a Dermoid Cyst within a Vascular Hamartoma in a Female Dog

Duplication of the urethra is a rare congenital malformation. A 14-month-old, sexually intact, male, Lagotto dog with complete Y-type urethral duplication was subjected to accessory urethra treatment for cystoscopic guided laser cauterization, with a 10-Watt diode laser with 550-micron fiber and 2.3 Fr outer diameter. The laser cauterization, that was repeated every 14 days for a total of three times, was performed by inserting the instrument from the accessory urethra outlet in the perianal area until it could be seen by the urethroscope, inside the ischial urethra. Nevertheless, this technique that proved to be non-invasive, less expensive than surgery, of short duration, and safe, did not allow the complete closure of the abnormal urethral tract. Therefore, the subsequent surgical removal of the accessory urethra was carried out. To the authors’ knowledge this is the first report on the use of cystoscopic guided diode laser cauterization for accessory urethra treatment.

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Section: Discussionmentioning

confidence: 99%

“…Only seven cases of urethral duplication have been described in dog to date [ 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. It was usually found in male dogs and only recently a case has been reported in a female dog [ 9 ]. Several anatomical variations exist, depending on the location and opening of the duplicated urethra (perineum or rectum).…”

Section: Discussionmentioning

confidence: 99%

Cystoscopic Guided Laser Cauterization in a Dog with Complete Y-Type Urethral Duplication

Dall’Aglio

Quintavalla

2023

Veterinary Sciences

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“…Cryptorchidism was also identified, and possibly associated (9,10). Other commonly associated anomalies include penile, vaginal, uterus, and colon duplications, vesicoureteral reflux, renal agenesis and ectopia, renal malrotation, multicystic-dysplastic kidneys, duplex kidney and ureter, vertebral anomalies, anorectal formations, tracheoesophageal anomalies, and bifid scrotum (9)(10)(11)(12).…”

Section: Discussionmentioning

confidence: 99%

Case report: Post-surgical complication in a case of urethral duplication in a dog

Martins

Rosa²,

Iglésias³

et al. 2022

Front. Vet. Sci.

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Urethral duplication is a rare anomaly observed in veterinary medicine. The surgical techniques described therein are associated with an uneventful recovery. The authors describe a major surgical complication after the correction of urethral duplication in a 2-year-old male Yorkshire terrier. After surgical correction using the perineal approach, the patient developed pollakiuria and urinary retention due to a valve effect caused by the remnant of the dorsal opening of the ectopic urethra. A second procedure, using an abdominopelvic approach, successfully corrected the complication by intraluminal correction of the dorsal urethral wall.

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Partial urethral duplication in a cat

Power¹,

Frem²,

Thomas³

2020

javma

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CASE DESCRIPTION A 3-year-old neutered male domestic shorthair cat with a history of urethral obstruction was evaluated at a veterinary referral center for acute onset of hunched posture and signs of discomfort on being handled. No evidence of urethral obstruction was found; signs initially responded to medical management, but the cat was presented to the primary care veterinarian < 48 hours after the initial examination with signs suggesting urethral obstruction. CLINICAL FINDINGS No urinary calculi were detected radiographically. Attempted urinary catheter placement was unsuccessful, and the cat was returned to the referral center for evaluation and treatment of suspected urethral obstruction. Hematologic evaluation revealed hyperglobulinemia and leukocytosis; the cat was febrile, its prepuce was swollen, and its urinary bladder was soft but could not be manually expressed. TREATMENT AND OUTCOME A urinary catheter was placed; urinalysis revealed hematuria, leukocyturia, and bacteriuria. Medical management included analgesic, antimicrobial, urethral antispasmodic, and IV fluid treatment. Positive-contrast cystourethrography results were equivocal for a congenital anomaly versus urethral rupture. Contrast-enhanced CT revealed a sinus communicating with the dorsal aspect of the urethra, and urethral rupture was ruled out. Partial urethral duplication was confirmed surgically; perineal urethrostomy was performed, creating an opening to the accessory urethra, and the strictured orthotopic urethra was ligated. Four weeks after surgery, the cat was doing well. CLINICAL RELEVANCE This case highlighted the importance of advanced imaging to distinguish between urethral rupture and a congenital malformation in a cat with signs of lower urinary tract disease. This approach was pivotal to appropriate diagnosis and management and a favorable outcome for the patient.

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Incomplete Urethral Duplication Associated with a Dermoid Cyst within a Vascular Hamartoma in a Female Dog

Cited by 3 publications

References 7 publications

Cystoscopic Guided Laser Cauterization in a Dog with Complete Y-Type Urethral Duplication

Cystoscopic Guided Laser Cauterization in a Dog with Complete Y-Type Urethral Duplication

Case report: Post-surgical complication in a case of urethral duplication in a dog

Partial urethral duplication in a cat

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