A Case Presentation of Three Polypoid Melanomas With Divergent Features

Polypoid melanoma, a subtype of nodular melanoma, is classified as the most aggressive and deadly form of cutaneous melanoma. Its rapid vertical growth phase and a wide array of divergent features make clinical diagnosis extremely difficult. This report includes three cases of polypoid melanoma that were all originally thought to be other benign lesions or non-melanoma cancer. These cases feature the variability of the clinical presentation of polypoid melanomas while emphasizing the importance of an annual skin examination, complete lesion biopsies, and working with experienced dermatopathologists for the correct diagnosis and prompt treatment of these cancers. By sharing these cases and general information on polypoid melanoma, we aim to spread awareness of this rarer subtype of melanoma and highlight the importance of having a broad differential list when presented with suspicious lesions.