فهرست نشریات علمی دسترسی آزاد ایران

Introduction: Primary retroperitoneal mature cystic teratomas (PRPMCT) are uncommon in adults. They typically occur in infants under six months old and young females. So far, some limited case reports have been documented in the literature. This case report presents a rare case of an adult patient with PRPMCT aged over 30 years. Conclusions: PRPMCT in adults is extremely rare. RP metastasis of primary gonadal teratoma and non-functioning adrenal tumors should be excluded first. Due to the diagnostic difficulty of posterior peritoneal teratoma with radiological imaging and its risk of malignancy, surgical resection would be the most effective diagnostic and therapeutic option. Complete resection of the mass is important to judge the existence of immature and solid components that require a long-time follow-up because of the increased risk of malignancy.