case_images: PMC9937633_01
case_images: Lateral view of the fluoroscopic image showing needle insertion at the sacrococcygeal joint and the injected contrast appearing like an inverted comma
case_images: cureus-0015-00000033911-i01.jpg
case_images: PMC9937633_01_cureus-0015-00000033911-i01.jpg
case_images: FIG1
case_images: It looked like an inverted comma and was described in the literature as a "comma sign" (Figures 1-3).
case_images: Anterior-posterior fluoroscopic image of the needle and injected contrast
case_images: cureus-0015-00000033911-i02.jpg
case_images: PMC9937633_01_cureus-0015-00000033911-i02.jpg
case_images: FIG2
case_images: It looked like an inverted comma and was described in the literature as a "comma sign" (Figures 1-3).
case_images: A lateral view of the fluoroscopic image showing the needle inserted at the intra-coccygeal joint and the injected contrast
case_images: cureus-0015-00000033911-i03.jpg
case_images: PMC9937633_01_cureus-0015-00000033911-i03.jpg
case_images: FIG3
case_images: It looked like an inverted comma and was described in the literature as a "comma sign" (Figures 1-3).