Skin Cancer Types

Nodular BCC on the nose (circled). This firm lesion appears semi-translucent (almost transparent), such that a few tiny blood vessels can be seen within the tumor.

Basal Cell Carcinoma (BCC)

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Note the numerous red, scaly patches on the back of the hand, including the circled example. The pale areas are the sites of lesions which were previously treated. These precancerous lesions often feel rough due to the presence of keratin (the protein in hair and fingernails).

Actinic Keratosis / Solar Keratosis

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An SCC on the back of the leg. This lesion has a thick crust (scab), scaling, and underling redness that extends deep into the skin.

Squamous Cell Carcinoma (SCC)

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Photograph of a typical keratoacanthoma. It is a raised, volcano-shaped lesion with a central, scab-filled indentation. Note the pinkish/purple color which is characteristic of many KAs.

Keratoacanthoma (KA)

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A larger cutaneous horn arising on the back of the wrist (approximately 6-8 mm).

Cutaneous Horn

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Superficial spreading MM demonstrating pigmentation which is predominantly black. (Photo courtesy of the National Cancer Institute, nci-vol-2364-72)

Melanoma (MM)

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A sebaceous carcinoma on the back of the neck.

Sebaceous Carcinoma

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Merkel Cell Carcinoma

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