Last Updated: 2016-05-18
The inflammation and enlargement of one or several major salivary glands. It most commonly affects parotid and submandibular glands.
Bacterial infection can supervene if salivary flow is diminished by illness or medication, or is obstructed by a sialolith (salivary stone). Most commonly caused by Staphylococcus aureus.
Intermittent painless unilateral or bilateral swellings without accompanying signs of infection may be idiopathic or due to an underlying condition, such as ductal stenosis or autoimmune disease.
Chronic sclerosing sialadenitis presents as a painless unilateral swelling that can mimic tumors. Biopsy is required for diagnosis.
Airway compromise is an important potential consequence of acute glandular swelling.
Acute bacterial sialadenitis of left parotid gland
From the personal collection of Dr A. Aguirre; used with permission
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