Parotideomasseteric Region, Lateral View

Description

Shown in left lateral profile, the parotideomasseteric region is highlighted over the posterior cheek and mandibular ramus, spanning the area between the zygomatic arch superiorly and the angle of the mandible inferiorly. Within this field you would expect the superficial lobe of the parotid gland to sit posterolateral to the masseter muscle, with the parotid (Stensen) duct coursing anteriorly across the masseter before turning medially to pierce the buccinator opposite the maxillary second molar. Deep to the parotid fascia, the facial nerve trunk exits the stylomastoid foramen and divides into temporofacial and cervicofacial divisions, giving rise to the zygomatic, buccal, marginal mandibular, and cervical branches that cross the gland and radiate anteriorly across the cheek. Clinically, this is the operative map for parotid surgery: surgeons plan incisions and dissection planes around the parotidomasseteric fascia while protecting the facial nerve branches that are most vulnerable near the anterior border of the gland and along the inferior mandible. Small mistakes matter. The lateral perspective also supports teaching around sialadenitis and parotid duct obstruction, where pain and swelling localize over the gland and may be traced along the duct’s surface projection, and it anchors discussion of masseter hypertrophy from bruxism and the common injection corridor for chemodenervation, which must respect the parotid tail and the marginal mandibular nerve. Use this artwork in head and neck anatomy courses, dental curricula covering salivary gland duct anatomy, and surgical atlases illustrating parotidectomy landmarks, facial nerve preservation, or botulinum toxin planning for masseter prominence. It also fits patient education materials explaining parotid swelling, duct stones, and postoperative facial weakness patterns after parotid procedures. Anatomical accuracy verified by SciePro's Medical Advisory Board.