[Apocrine hidrocystoma associated with gouty tophi of the pinna]

Rev Med Inst Mex Seguro Soc. 2016 Sep-Oct;54(5):670-2.
[Article in Spanish]

Abstract

Background: Apocrine hidrocystomas, also known as apocrine cystadenomas, are bening cystic tumours derived from the secretory portion of apocrine sweat glands.

Clinical case: A 78-year old female was referred to our division for assesment an asymptomatic translucent, well-defined cystic lesion located on the upper helix. The histological features were consistent with apocrine hidrocystoma coexisting with gouty tophi.

Conclusions: We report the second case of apocrine hydrocystoma located in the pinna, outside of ear canal and the first case of its association with gouty tophi described. It is difficult to know which lesion was first established and if the tophi may lead to ductal obstruction and subsequent cystic retention.

Introducción: los hidrocistomas apocrinos, también conocidos como cistoadenomas apocrinos, son lesiones quísticas benignas derivadas de la porción secretora de las glándulas apocrinas. Caso clínico: remiten al servicio de Dermatología a una mujer de 78 años para valorar una lesión asintomática translúcida, bien definida, localizada en la porción superior del hélix. Los hallazgos histológicos fueron compatibles con un hidrocistoma apocrino asociado a tofo gotoso. Conclusiones: reportamos el segundo caso de hidrocistoma apocrino localizado en el pabellón auricular externo y el primer caso asociado a tofo gotoso. Es difícil de conocer qué lesión se estableció primero, y si el tofo gotoso pudo provocar una obstrucción ductal con la subsiguiente retención quística.

Keywords: Apocrine glands; Gout; Hidrocystoma; Neoplasms.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Apocrine Glands / pathology*
  • Ear Auricle / pathology*
  • Ear Neoplasms / complications
  • Ear Neoplasms / diagnosis*
  • Ear Neoplasms / pathology
  • Female
  • Gout / complications
  • Gout / diagnosis*
  • Gout / pathology
  • Hidrocystoma / complications
  • Hidrocystoma / diagnosis*
  • Hidrocystoma / pathology
  • Humans
  • Sweat Gland Neoplasms / complications
  • Sweat Gland Neoplasms / diagnosis*
  • Sweat Gland Neoplasms / pathology