Tailgut cysts: rare retrorectal tumours

Two patients presented with tailgut cysts. The first patient complained of pain and pressure in the sacrococcygeal region. The second patient had developed a cystic mass superficial to the coccyx. Pelvic CT scans of both patients demonstrated a retrorectal mass. Both tumours were excised through a posterior para-sacrococcygeal approach with resection of the coccyx.