“…11,64,84,87 Others state the MM cells are sharply demarcated from adjacent CMN cells relative to PN. 12 Immunohistochemistry with various antibodies and comparative genomic hybridization have also been proposed as potential methods for discerning PN from MM. 88,89 Despite the worrisome clinical and histologic findings of PN, most laboratory investigations seem to support their benignity.…”