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Squamous cell carcinoma in situ (Bowen's disease)

Squamous cell carcinoma in situ (Bowen's disease) is an early form of squamous cell skin cancer. In situ means that the cancer involves only the top layer of skin and does not invade or harm surrounding healthy tissue (noninvasive).

Bowen's disease may involve any area of the body but most frequently occurs on sun-exposed areas of the face, neck, arms, and legs. Bowen's disease occurs in sharply defined, round to irregular reddish patches.

People with Bowen's disease may be more likely to develop other cancers, including other skin cancers, or cancers of the lung and gastrointestinal tract.

Author Jeannette Curtis
Author Caroline Rea, RN, BS, MS
Editor Kathleen M. Ariss, MS
Editor Susan Van Houten, RN, BSN, MBA
Associate Editor Tracy Landauer
Associate Editor Pat Truman
Primary Medical Reviewer Patrice Burgess, MD
- Family Medicine
Primary Medical Reviewer Adam Husney, MD
- Family Medicine
Primary Medical Reviewer Kathleen Romito, MD
- Family Medicine
Last Updated May 25, 2007

WebMD Medical Reference from Healthwise

Last Updated: May 25, 2007
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