Applying Retrorectal Oncologic Tumor Dissection Planes to a Pelvic Tailgut Cyst.
A 33-year-old woman presented with abnormal bleeding and vaginal discomfort. Computed tomography (CT) and magnetic resonance imaging (MRI) revealed a multilocular cystic lesion on the anterior surface of the sacrum and coccyx. The cyst was generally homogeneous, and no obvious bone infiltration was observed. Tailgut cy...