{Reference Type}: Case Reports {Title}: Retroperitoneal dermoid cyst complicated with uterine adenomyoma: a case report and literature review. {Author}: Zhang Y;Liu H;Hou W;Cheng H;Wang F;Zhang L;Zhou J;Han F;Zhu W; {Journal}: J Int Med Res {Volume}: 52 {Issue}: 6 {Year}: 2024 Jun {Factor}: 1.573 {DOI}: 10.1177/03000605241255810 {Abstract}: Pelvic masses frequently originate from the pelvic cavity and are often associated with uterine, ovarian, or intestinal disorders. This report describes the case of a patient with a pelvic mass diagnosed as a retroperitoneal dermoid cyst at our hospital. We analyzed this case and conducted a literature review, to mitigate the risk of misdiagnosis and enhance the treatment of retroperitoneal masses.