C. Parotid gland hemorrhage
Swelling of the parotid gland has a broad differential diagnosis, but enlargement from spontaneous bleeding is rare. Etiologies that frequently cause enlargement of the parotid region can be divided into either neoplasms or inflammation. In adult patients, a neoplastic process is generally more likely. Children and young adults have a propensity for infection or other inflammatory pathology.1 Differentiating between benign and malignant parotid gland lesions with imaging can be challenging, as they are often visually indistinguishable. In the early stages of cancer, clinical features, such as pain, fixation, or paralysis, may be absent, especially in low-grade tumors.2 When clinical symptoms do arise, a high-grade infiltrative lesion should be considered.2