The simultaneous occurrence of two different neoplasms is uncommon, and collision tumors are even rarer. We describe a cutaneous collision tumor of melanoma and mantle cell lymphoma presenting synchronously in a previously healthy individual.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6793987PMC
http://dx.doi.org/10.1080/08998280.2019.1639431DOI Listing

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