Dr Netto discusses with Dr. Andrew Folpe a novel tumor of soft tissue and bone with a predilection for young females. The newly discovered lesion is provisionally termed "xanthogranulomatous epithelial tumor". Clues to the diagnosis of this tumor type are presented by Dr. Folpe with a practical guide to navigating the challenging differential diagnosis of epithelial expression in mesenchymal neoplasms.

Study by Fritchie et al, Xanthogranulomatous epithelial tumor: report of 6 cases of a novel, potentially deceptive lesion with a predilection for young women. Modern Pathology, 33, 1889-1895. 2020. https://www.nature.com/articles/s41379-020-0562-8.