Metastatic Penile Melanoma

Abstract

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.