Rare case of retroperitoneal myoepithelial carcinoma reported

A case of primary retroperitoneal myoepithelial carcinoma (MC) has been reported, marking a rare occurrence of this tumor type outside the salivary glands. The patient presented with abdominal distension and underwent imaging that revealed a large cystic solid mass. Surgical resection was performed, and pathology confirmed the diagnosis of retroperitoneal MC. Despite initial treatment success, the tumor recurred multiple times, leading to the patient's death from complications related to the cancer. This case highlights the importance of imaging and pathology in diagnosing and managing rare tumors like retroperitoneal MC, which has a high risk of recurrence and requires comprehensive treatment strategies.