[Successful Resection Using a Posterior Approach of a Tailgut Cyst in the Retrorectal Space]

Area of Science:

• Surgical case report
• Gastrointestinal pathology
• Retrorectal tumors

Background:

• Tailgut cysts are rare congenital cystic lesions originating from the embryonic tailgut remnant.
• They are typically found in the retrorectal space, a challenging anatomical location for surgical access.
• Diagnosis often relies on advanced imaging techniques like MRI.

Observation:

• A 40-year-old male presented with perineal incongruity.
• Pelvic MRI revealed a multilocular cystic lesion in the retrorectal space with high T2-weighted signal intensity.
• The lesion was diagnosed as a Tailgut cyst.

Findings:

• The Tailgut cyst was completely resected using a posterior surgical approach.
• The tumor was removed en bloc with the coccyx.
• Histopathological examination confirmed a non-malignant Tailgut cyst with negative surgical margins.

Implications:

• A posterior approach can be a curative option for retrorectal Tailgut cysts.
• Complete resection with negative margins is crucial for preventing recurrence.
• This case contributes to the understanding of surgical management for rare retrorectal pathologies.