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Intranasal dermoid cyst without external sinus tract or swelling in an adult cocker spaniel
  1. Jenny Ellis1 and
  2. Pieter Nelissen2
  1. 1 Department of Internal Medicine, Dick White Referrals, London, UK
  2. 2 Tierklinik Haar, Haar, Germany
  1. Correspondence to Jenny Ellis; jenny.ellis{at}


An adult female cocker spaniel presented with acute-onset sneezing. Advanced imaging of the nasal cavity revealed a mass lesion with erosion of the normal bony structures. Cytology and histopathology revealed intralesional keratin and marked inflammation. This was suggestive of a nasal dermoid cyst despite the lack of external swelling over the nose and absence of a draining sinus tract. The cyst was successfully removed surgically via rhinotomy. Some crusting was seen at the nostril postoperatively, which was considered secondary to reduced lacrimal secretion. No other signs persisted and the dog made an excellent clinical recovery. This is the first report of an intranasal dermoid cyst in a dog with no external signs of swelling or sinus tract.

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  • Contributors JE was the main clinician in charge of this case. JE drafted the piece, with PN performing the surgical procedures described and revising this report critically for important intellectual content. JE and PN both provide final approval of the version published. JE and PN agree to be accountable for all aspects of this report.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data sharing statement No additional data are available.

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