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Latest Edit: Iva 2012-08-03 (EDT)

A comedone is a sebaceous or keratinous plug in the opening of a hair follicle. A dilated comedone is often referred to as a blackhead, while a narrowed or closed comedone is referred to as a whitehead.[1]

Check out other skin lesions.


  1. Habif Thomas P., et al. (2005) Skin Disease, Diagnosis and Treatment Mosby