Expected headings
"Terminology"
"The anococcygeal raphe is a thin, linear structure running from the coccyx to the anal canal measuring approximately 1-2 cm in length and 2-5 mm in width 1. It represents the junction of the endopelvic fascia and the levator ani muscles. The anococcygeal raphe can be seen on plain radiographs, CT or MRI. However, it is best seen on axial imaging at the level of the lower border of the pubic symphysis."