We describe a man with a pigmented poroma on the scalp mimicking a pigmented melanocytic nevus. Histopathological examination showed that melanocytes were mostly distributed at the periphery of the tumor masses. It is suggested that melanocytes in the tumor masses may have migrated from the adjacent epidermis.
No takes yet. Share an insight, caveat, or question.
Ohata et al. (2006) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: