Lymphoepithelioma-Like Carcinoma of the Skin: Case Report and Approach to Surgical Pathology Sign Out
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Lymphoepithelioma-like carcinoma of the skin (LELCS) is a rare and poorly differentiated variant of squamous cell carcinoma. The lesion is histologically identical to undifferentiated nasopharyngeal carcinoma (lymphoepithelioma), but with Epstein-Barr virus involvement documented rarely. The first case of LELCS was described in 1988 by Swanson et al. and since there has been less than a total of 60 cases documented. This case review discusses a 87 year old man who presented to his primary care physician with a 2.5 cm solitary ulcerated nodular lesion on his right chest for two weeks. The patient ultimately had the lesion excised and sent for histological examination. The microscopic examination, ancillary studies used and differential diagnosis considered are discussed in detail in the following report. This case review aims to provide insight and approach to a rare cutaneous neoplasm, with the conclusions supporting a theory that LELCS is a separate entity from lymphoepithelioma.