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Skin: apocrine gland cyst

ISSN 2398-2942

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Synonym(s): Paratrichial (epitrichial apocrine sweat gland cyst, apocrine cystomatosis

Introduction

  • Common, single or multiple.
  • Cause: obstruction of paratrichial sweat glands causing swellings which may become inflamed.
  • Rare - apocrine cystomatosis - multiple dilated sweat glands producing groups of vesicles.
  • Signs: skin nodules.
  • Diagnosis: histopathology.
  • Treatment: surgical excision.
  • Prognosis: good.

Presenting signs

  • Nodules with or without inflammation.
  • They sometimes ulcerate.
  • Alopecia.

Geographic incidence

  • Common.
  • Head, neck, dorsal trunk.

Age predisposition

  • Any, but usually over 6 years.

Breed/Species predisposition

  • None.

Pathogenesis

Pathophysiology

  • Probably caused by blockage of epitrichial gland ducts.

Timecourse

  • Weeks to months.

Diagnosis

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Treatment

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Prevention

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Outcomes

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Further Reading

Publications

Refereed papers

Other sources of information

  • Miller W H, Griffin C E & Campbell K L (2013)Diagnostic methods.In:Muller & Kirk's Small Animal Dermatology.7th edn, p 75 and pp 826-827.
  • Gross T L, Ihrke P J & Walder E J (1992)Sweat gland tumours.In:Veterinary Dermatopathology A macroscopic and microscopic evaluation of canine and feline skin disease.Mosby Year Book, St Louis, pp 386.