Sudden inflammation of any of the salivary glands.

- Usually affects one gland- Common in 50s and 60s

Etiology:- Infectious: Staphylococcus aureus, Streptococcus viridans, Haemophilus influenzae, mumps, HIV- Reduced salivary flow: dehydration, Sjögren syndrome, anticholinergics, postoperative, sialolithiasis

Acute sialadenitis:- Pain, swelling, redness of the skin, less saliva, bad taste from pus, painful to open mouth- Fever, chills, can devlop into an abscess

Chronic sialadenitis:- Less painful, gland enlarges following meals, lack of redness- Associated with conditions of decreased salivary flow, autoimmune disease (Sjögren syndrome)

Diagnosis: - Swollen salivary gland- Lab culture of pus collected by milking the gland- ↑ serum amylase- Imaging studies: check for abscess, salivary stone, tumor

Treatment: Hydration, glandular massage, medication to stimulate saliva- Intravenous antibiotic treatment: nafcillin + metronidazole OR clindamycin