03 September 2025
: Case report 
Laparoscopic Resection of a Rare Retroperitoneal Dermoid Cyst in a 78-Year-Old Woman: A Case Report
Unknown etiology, Unusual clinical course, Challenging differential diagnosis, Unusual or unexpected effect of treatment, Rare disease, Educational Purpose (only if useful for a systematic review or synthesis)
Yuanchen Lu BCDEF 1, Quan Li AB 1, Qijie Zhang BE 1, Xianhua Shao B 1, Hua Shen G 1, Junpeng Deng E 1, Hongliang Que E 1, Tengyue Zeng E 1, Jinqi Hua E 1, Yichen Qian E 1, Jianjun Xie AG 1*DOI: 10.12659/AJCR.947666
Am J Case Rep 2025; 26:e947666
Figure 5 Photomicrograph of the resected retroperitoneal mass from a 78-year-old woman with a solitary retroperitoneal mature cystic teratoma (dermoid cyst). The histology shows one of the cysts lined by keratinizing squamous epithelium with disorganized skin appendages and fibrous tissue in the adjacent cyst wall. Sebaceous glands (black arrow), sweat glands (red arrow), and hair follicles (yellow arrow) can be seen in the cyst wall. There is no evidence of inflammation or malignancy. The appearances are consistent with a part of a benign mature cystic teratoma (dermoid cyst). Hematoxylin and eosin (H&E). Magnification ×60.