Ancient nevus

This is a rare variant of melanocytic nevus, so-named because it shares some of the features of ancient schwannoma and not because of its age! It most often arises on the face of older patients as a flesh colored or erthematous nodule. Its importance is that it may be mistaken as melanoma by the unwary.

Histological features

•Dome shaped silhouette

•Mixed cell population- pleomorphic cells (nevoid or Spitzoid)with vesicular or more often intensely hyperchromatic nuclei & often prominent nucleoli, admixed with banal nevus cells, intranuclear cytoplasmic pseudo-inclusions

•Very occasional mitoses may be found

•Sclerosis with hyalinization

•Vascular ectasia sometimes with thrombosis & hemorrhage

•Myxoid change

•Cystic change

One response to “Ancient nevus”

  1. Thanks a lot for sharing. We just had one case today.

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