External ear tumors - benign / nonneoplastic
Collagenous papules

Topic Completed: 1 October 2013

Revised: 07 January 2019

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PubMed Search: Collagenous papules ear

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Cite this page: Pernick N. Collagenous papules. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/earcollagenousnodules.html. Accessed February 21st, 2019.
Definition / general
  • Bilateral, smooth, firm, small papules on inner aspects of pinna
  • Rarely involves external auditory canal
  • Some of these cases may represent amyloid
Microscopic (histologic) description
  • Dense collagen with dilated vessels and scattered fibroblasts
Additional references