Incidentally Detected Intracranial Sewing Needle in an Adult: Case Report.

The author presents a 48-year-old man who showed an intracranial sewing needle incidentally detected on a skull radiograph. He had no history of cranial surgery or a penetrating head injury. On radiography, the sewing needle was found to be located close to the frontal bone in the midline, with a trajectory to the right anterior skull base. Computed tomography angiography revealed that the needle head was located at an approximately 3.57 mm depth from the inner table and attached to the cortical vein. The distal end of the needle was surrounded by the right distal pericallosal artery. No cortical injury or vascular injury was observed. The needle may have penetrated during the early period before the closure of the anterior fontanelle.