External ear tumors - benign / nonneoplastic
Collagenous papules

Author: Nat Pernick, M.D. (see Authors page)

Revised: 23 February 2018, last major update October 2013

Copyright: (c) 2002-2018, PathologyOutlines.com, Inc.

PubMed Search: Collagenous papules ear

Cite this page: Pernick, N. Collagenous papules. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/earcollagenousnodules.html. Accessed November 12th, 2018.
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