Dermatology and Pruritus Ani

  • Charles O. Finne
  • John R. Fenyk


Perianal skin is subject to virtually all of the diseases that affect skin and mucosa. The differential diagnosis of disease in perianal skin is broad (Table 16-1) and includes a variety of diagnoses. These diseases almost never present solely within the perianal area; however, there are common diseases such as psoriasis that may present in the perianal area without obvious ties to other areas of the body unless a careful search is made. Certain diseases have specific causes and well-recognized treatment protocols (e.g., psoriasis, candida, and Bowen’s disease), other diseases have less well-defined causes and all too often where therapy is established it is poorly defined. Recognition of important treatable causes requires a disciplined, organized approach to diagnosis with careful and complete history, physical exam, and the frequent use of biopsy. This chapter’s objective is to lay out a strategy to facilitate accurate diagnosis and successful treatment of perianal and anal skin conditions.


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Copyright information

© ASCRS (American Society of Colon and Rectal Surgeons) 2011

Authors and Affiliations

  • Charles O. Finne
    • 1
  • John R. Fenyk
    • 2
  1. 1.Division of Colon and Rectal Surgery, Department of SurgeryUniversity of Minnesota Medical SchoolMinneapolisUSA
  2. 2.Department of DermatologyUniversity of Minnesota Medical SchoolMinneapolisUSA

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