Figure 2: A. Ultrasonogram of the orbital foreign body. The skin-to-object distance is about 5 mm. The hemispheric diameter is about 9 mm. B. Ultrasonogram of the left parapharyngeal space reveals an ultrasound remitting surface in an oblique position to the surface of the applicator. Proximal to the applicator and covering the surface is a concave hypoechoic zone (arrow). C. The foreign bodies (left: airgun pellet, right: screw) and the fibrous bag that covered the screw (left below) with millimetre scale (total length of screw: 30 mm; diameter of screw head: 12 mm; pellet diameter: 9 mm).