Metastatic Penile Melanoma
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Melanoma, the most serious skin cancer and the sixth most common cancer in North America, is associated with UV light radiation from sun exposure. The majority of melanomas develop on sun-exposed areas, but melanoma can also occur on non-sun exposed areas. This case Illustrates the importance of doing a thorough physical exam, formulating an extensive differential diagnosis, and identifying possible cognitive biases that may lead to misdiagnosis.