Clinical correlations between uPARAP expression and selected parameters (gender and sample origin) were analyzed using generalized estimating equations, and survival outcomes were evaluated with Kaplan-Meier and log-rank tests.<h4>Results</h4>Our results demonstrated limited uPARAP expression in normal tissues, while high expression was observed in the majority of analyzed sarcoma subtypes, particularly high (>80% of highly positive cases) in fibrosarcoma, synovial sarcoma, undifferentiated pleomorphic sarcoma, malignant peripheral nerve sheath tumor, and various bone sarcomas. This evidence concerns the gene MRC2 and undifferentiated pleomorphic sarcoma.