Retroperitoneal Endometriotic Cyst Infiltrated in the Iliopsoas Incidentally Found in a Patient with Acute Back Pain

Figure 2

(a) Intraoperative findings showing that the peritoneal cyst in the left inferior kidney is bilocular, and it is firmly adhered to the left iliopsoas and ureter. (b) Photographs of the resected retroperitoneal cyst showing that it is bilocular with cystic space with old and new bleeding.

(a)

(b)