Our patient’s case was not one of clear cell sarcoma, malignant melanoma, sex-cord tumor and metastatic hepatocellular carcinoma, alveolar soft part tumor and metastatic carcinomas of the gastrointestinal tract because there was negative staining for HMB-45, S-100, α-inhibin, Hep-par-1, glypican-3, CDX2, TFE-3 and vimentin. This evidence concerns the gene CDX2 and metastatic carcinoma.