Our appreciation is extended to Nada Shaker, Ohio State University Wexner Medical Center, Columbus, OH, for contributing this case.

History: A man in his 30s with no significant past medical history presented with a painless lower labial mucosa lesion. Histology revealed a pseudocyst cavity containing abundant epithelioid foamy histiocytes. (Click the images below to enlarge them.) The lesion is completely excised.