Risk factors: Decreased salivary flow- Medications (eg, anticholinergics)- Obstruction (eg, calculi, neoplasm)- Dehydration, postsurgical/intubation

Microbiology: Staphylococcus aureus, anaerobes

Presentation:- Firm, erythematous pre/postauricular swelling- Trismus, dysphagia, systemic findings (fever, chills)

Diagnosis: - Imaging (ultrasound/CT): Ductal inflammation/obstruction, frank abscess- Laboratory: Elevated serum amylase without pancreatitis