Figure 4.

Ultrasound and photographic analysis of the lower face and neck. (a) Photographic images of the patient’s lower face and neck in frontal and lateral views, showing pretreatment conditions. (b) Ultrasound images illustrating anatomical structures of the lower face and neck: (1) Vascular and muscular structures in the submandibular region, including the glandula sublingualis. (2) Imaging of the platysma. (3) Visualization of the skin, subcutaneous fat, and platysma muscle. (c) Posttreatment photographic images of the patient’s lower face and neck, showing improved contours and a reduction in skin laxity. Transducer placement: The transducer was placed vertically along the mandibular angle and submandibular region without pressure for optimal imaging accuracy