Laparoscopic resection of tailgut cysts: the size is not the issue

Abstract

INTRODUCTION: Tailgut cysts are rare retrorectal cystic lesions usually treated by surgical resection, even where asymptomatic, due to the risk of malignancy and recurrence. In the last 20 years, the laparoscopic abdominal approach has been gaining consensus for its better visualization of pelvic structures and minimal invasiveness.

CASE REPORT: We present the case of the biggest tailgut cysts managed laparoscopically reported so far.

DISCUSSION: Mostly asymptomatic, diagnosis of tailgut cysts is often fortuitous during routine examination. Their malignant transformation is estimated being 14.1% of cases. MRI is particularly indicated to lead the surgical approach, given its superior resolution in soft tissues and assessment of local invasion. Surgical resection is the therapy of choice, performed with different approaches: the laparoscopic abdominal technique, performed by surgeons with expertise in pelvic laparoscopic surgery, allows the best visualization of pelvic viscera with lesser morbidity. Due to rupture and seeding risks, the laparoscopic approach should not be performed if there is any suspicion of malignancy.

CONCLUSION: Our case substantiates safety and feasibility of laparoscopic tailgut cysts management, even of large-size cysts. Preoperative imaging is crucial to assess the possible malignancy of the lesion and, in that case, to perform a laparotomic approach.