TRPS1 and osteosarcoma: TRPS1 is a valuable addition to the pathologist’s diagnostic toolkit, demonstrating a high sensitivity for breast carcinoma, though with a lower specificity due to its expression in other tumors such as salivary gland tumors, prostate carcinoma, endometrial carcinoma, ovarian carcinoma, gastric carcinoma, synovial sarcoma, and osteosarcoma.