“Rare Axillary Primary Signet Ring Cell Melanoma Diagnosed by Fine Needle Aspiration Cytology and Immunohistochemistry: A Case Report”

https://pubmed.ncbi.nlm.nih.gov/38094552

This abstract reports a rare case of amelanotic primary signet ring cell melanoma in the axilla, which was diagnosed through fine needle aspiration cytology (FNAC) and confirmed with immunohistochemistry.