Actinic Keratoses and Squamous Cell Carcinoma


The erythematous scaly papules on the dorsum of both hands of this 70-year-old gardener are most likely (see photo):


Your patient has an actinic keratosis on the forehead. What treatment would you recommend?


Based on this image of a firm non-healing nodule on the scalp of a balding man, what is the most likely diagnosis?


Your patient is a 35-year-old woman with a history of squamous cell carcinoma who would like more information about sun protection. What patient education would you provide?

5.*This 78 year-old man complains of a tender nodule that grew rapidly over the past 4 weeks near his left elbow. Based on the photo below and that history, the most likely diagnosis is:
6.*The cell of origin in a squamous cell carcinoma is the

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The online modules increased your ability to visually recognize skin disease:


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