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Long-term follow-up of a juvenile simple renal cyst in a dog treated by laparoscopic deroofing, fulguration, and omentalization

Bastien DekerleDepartment of Small Animal Surgery and Department of Internal Medicine, Centre Hospitalier Universitaire Vétérinaire d’Alfort (CHUVA), Université Paris Est, École Nationale Vétérinaire d’Alfort, Maisons-Alfort Cedex, France

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Virginie FabresDepartment of Small Animal Surgery and Department of Internal Medicine, Centre Hospitalier Universitaire Vétérinaire d’Alfort (CHUVA), Université Paris Est, École Nationale Vétérinaire d’Alfort, Maisons-Alfort Cedex, France

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Ghita BenchekrounDepartment of Small Animal Surgery and Department of Internal Medicine, Centre Hospitalier Universitaire Vétérinaire d’Alfort (CHUVA), Université Paris Est, École Nationale Vétérinaire d’Alfort, Maisons-Alfort Cedex, France

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Mathieu ManasseroDepartment of Small Animal Surgery and Department of Internal Medicine, Centre Hospitalier Universitaire Vétérinaire d’Alfort (CHUVA), Université Paris Est, École Nationale Vétérinaire d’Alfort, Maisons-Alfort Cedex, France

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Abstract

CASE DESCRIPTION

A 10-month-old male crossbred dog presented with a 4-week history of polyuria and polydipsia and a 6-month history of vomiting.

CLINICAL FINDINGS

Clinical examination revealed abdominal pain and right-sided nephromegaly. Biochemistry was within normal limits. Diagnostic imaging showed a well-defined, unilateral renal mass containing anechoic fluid consistent with a simple renal cyst (SRC).

TREATMENT AND OUTCOME

The cyst was drained under ultrasonographic guidance but recurred 3 months later, concomitant with recurrence of the previously reported clinical signs. The cyst was then deroofed, fulgurated, and omentalized under laparoscopy by use of a 3-port technique. The resected cystic wall was histopathologically consistent with an SRC, presumptively congenital. The dog showed a good recovery with resolution of clinical signs. Renal function was normal at last follow-up, conducted 2 years postoperatively, without evidence of recurrent disease.

CLINICAL RELEVANCE

To our knowledge, this was the first report of a symptomatic juvenile SRC of presumptively congenital origin in a dog treated successfully by laparoscopic deroofing, fulguration, and omentalization. The polyuria, polydipsia, chronic vomiting, and abdominal pain may all have been related to space-occupying effects of the cyst, as these symptoms resolved post-treatment. Results of long-term follow-up advocate for this durable cure of SRC by use of laparoscopic procedures, especially when compared to simple drainage of the cyst, as the latter initially failed in the present case.

Abstract

CASE DESCRIPTION

A 10-month-old male crossbred dog presented with a 4-week history of polyuria and polydipsia and a 6-month history of vomiting.

CLINICAL FINDINGS

Clinical examination revealed abdominal pain and right-sided nephromegaly. Biochemistry was within normal limits. Diagnostic imaging showed a well-defined, unilateral renal mass containing anechoic fluid consistent with a simple renal cyst (SRC).

TREATMENT AND OUTCOME

The cyst was drained under ultrasonographic guidance but recurred 3 months later, concomitant with recurrence of the previously reported clinical signs. The cyst was then deroofed, fulgurated, and omentalized under laparoscopy by use of a 3-port technique. The resected cystic wall was histopathologically consistent with an SRC, presumptively congenital. The dog showed a good recovery with resolution of clinical signs. Renal function was normal at last follow-up, conducted 2 years postoperatively, without evidence of recurrent disease.

CLINICAL RELEVANCE

To our knowledge, this was the first report of a symptomatic juvenile SRC of presumptively congenital origin in a dog treated successfully by laparoscopic deroofing, fulguration, and omentalization. The polyuria, polydipsia, chronic vomiting, and abdominal pain may all have been related to space-occupying effects of the cyst, as these symptoms resolved post-treatment. Results of long-term follow-up advocate for this durable cure of SRC by use of laparoscopic procedures, especially when compared to simple drainage of the cyst, as the latter initially failed in the present case.

Contributor Notes

Corresponding author: Dr. Dekerle (bastien.dekerle@gmail.com)