Fig. 1

Sonographic and CT imaging of parotid abscesses. A Coronal and B transverse sonographic images of the left parotid gland displaying a hypoechoic, partly anechoic mass within the parotid gland with partly ill-defined margins and posterior acoustic enhancement and hyperechoic debris in a 60-year-old female patient. C Coronal and D axial CT scan of the neck with contrast displaying a hypodense partly lobulated mass of the right parotid gland (red arrow) with capsular ring enhancement and surrounding inflammatory changes and contact to the sternocleidomastoid muscle and the mandible in a 51-year-old female patient