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Atypical dermoid sinus in a chow chow dog
1Department of Surgery, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa.
Journal of the South African Veterinary Association
|December 16, 1998
Summary
This study describes multiple congenital dermoid sinuses in a Chow Chow, including one without a skin opening. This is the first report in this breed and challenges the term pilonidal sinus.
Area of Science:
- Veterinary Neurology
- Canine Dermatology
- Congenital Abnormalities
Background:
- Congenital dermoid sinuses are rare defects in dogs, typically associated with specific breeds like the Rhodesian Ridgeback.
- Previous literature primarily describes these sinuses with a visible external opening.
Observation:
- A case of multiple dorsal dermoid sinuses in the cervical and craniothoracic regions of an adult Chow Chow is presented.
- One of the described sinuses lacked a cutaneous opening, presenting as an internal anomaly.
Findings:
- This represents the first documented instance of multiple congenital dermoid sinuses in the Chow Chow breed.
- The absence of a skin opening in one sinus is a novel observation, differentiating it from typical presentations.
Implications:
- The findings suggest that the term 'pilonidal sinus' may not accurately encompass all variations of this condition, particularly those lacking external openings.
- This case expands the understanding of congenital dermoid sinus presentation and breed predilection.
- Further research is warranted to classify and understand the pathogenesis of internal or occult dermoid sinuses.