Sinus pericranii is a rare venous anomaly characterized by abnormal communication between intracranial and subperiosteal veins. and reports of trauma-induced sinus pericranii are even rarer. Herein. we report a case of delayed-onset sinus pericranii resulting from a traumatic injury to the left side of the midline of the forehead sustained in early childhood. https://detectorexpertes.shop/product-category/rods/