Table 1.

Causes of sialadenitis.

Acute infective sialadenitis	Acute bacterial suppurative sialadenitis Acute viral sialadenitis
Chronic infective sialadenitis	Chronic adult sialadenitis Chronic juvenile recurrent parotitis
Obstructive sialadenitis	Stone Stricture
Immunoglobulin G4-related sialadenitis
Lymphoepithelial sialadenitis	Human immunodeficiency virus (HIV) sialopathy Sjögren’s syndrome
Granulomatous sialadenitis	Tuberculosis, cat scratch disease, actinomycosis, sarcoidosis, amyloidosis, granulomatosis with polyangiitis
Post-treatment sialadenitis	Radiation-induced sialadenitis Radioactive iodine-induced sialadenitis Anesthesia-induced sialadenitis
Others causes of sialadenitis	Sialadenosis Pneumoparotidis Necrotizing sialometaplasia Subacute necrotizing sialadenitis