Secondary presacral cyst following radical resection for rectal cancer: a case report and literature review

Presacral cyst is a congenital cystic disease that occurs between the sacrum and the rectum. The main symptoms are sacrococcygeal bulge and defecatory disturbances. It can be diagnosed by imaging examination and has been reported clinically. However, clinical reports on presacral cysts secondary to radical resection of rectal cancer are relatively rare. Our team treated a male patient who underwent the Miles procedure 15 years ago. The patient complained of “acrococcygeal bulge discomfort for 3 months”. After imaging examinations, the diagnosis was a presacral cyst. The postoperative pathology was adenocarcinoma originated from the digestive system. The lesion was successfully excised, with satisfactory postoperative recovery and wound healing. This paper reports the diagnosis and treatment of this patient with presacral cyst, and reviews the relevant literature on the diagnosis and treatment of presacral cyst and rectal cancer in recent years.