Elsevier

Clinics in Dermatology

Volume 22, Issue 5, September–October 2004, Pages 385-386
Clinics in Dermatology

Acne: Clinical presentations

https://doi.org/10.1016/j.clindermatol.2004.03.012Get rights and content

Abstract

Acne vulgaris, the most common disease of the skin, can be manifested in a wide variety of clinical presentations. As a result of this clinical variation, there are almost as many classifications of acne as there are clinicians with particular interest in the disease. Thus acne has been classified as types I–IV, inflammatory versus noninflammatory, comedonal, comedopapular, papular, papulopustular, pustular, and “cystic” or nodular (even nodular-cystic). For those who are enamored of classification, there are subdivisions of the various categories, including “sandpaper comedones” and microcysts. There is even disagreement as to what constitutes a papule versus a nodule. The classic textbook definition of a nodule refers to lesions 1 cm or larger, but the early investigators of oral isotretinoin defined nodules as 4 mm or larger, and this definition has creeped into many texts, recently clarified by Bologna.1

References (3)

  • J. Bologna et al.

    Dermatology

    (2003)
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