HASSAN , D. O. (2025) “Dedifferentiated liposarcoma (DDLPS) is a rare subtype of retroperitoneal sarcoma (RPS) arising from mesenchymal tissue, commonly in fat-rich regions such as the retroperitoneum. We present a case of DDLPS in a 61-year-old male who presented with an abdom”, TPM – Testing, Psychometrics, Methodology in Applied Psychology, 32(S2(2025) : Posted 09 June), pp. 1598–1601. Available at: https://tpmap.org/submission/index.php/tpm/article/view/811 (Accessed: 13 September 2025).