Behind the Peritoneum and Back of the Mind: Consideration of Retroperitoneal Sarcomas as a Differential Diagnosis

Retroperitoneal sarcomas (RPS) are rare malignant tumours that originate from connective tissues of skeletal or extraskeletal origin in the retroperitoneal region, which often missed. This case report highlights a patient with RPS presented abdominal swelling. In addition, this was written to elucidate significance thorough history, physical examination findings, and awareness considering as differential diagnosis masses accurately diagnosing for timely intervention.