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Acute bacterial parotitis: is most often caused by a bacterial infection of Staphylococcus aureus but may be caused by any commensal bacteria. [2] Parotitis presents as swelling at the angle of the jaw. Bacterial parotitis presents as a unilateral swelling, where the gland is swollen and tender and usually produces pus at the Stensen's duct.
Bacterial sialadenitis is uncommon nowadays and is usually associated with sialoliths. [13] A study involving hospitals in the United Kingdom found that the incidence of admissions for sialadenitis is 27.5 per million of the population, with the most common cause being mumps, which causes a viral infection in the salivary gland. [ 13 ]
Infections involving the salivary glands can be viral or bacterial (or rarely fungal). Mumps is the most common viral sialadenitis. It usually occurs in children and involves pain in front of the ear, swelling of the parotid, fever, chills, and headaches. [2] Bacterial sialadenitis is usually caused by ascending organisms from the mouth.
Widespread vaccination against mumps has markedly reduced the incidence of mumps parotitis. The pain of mumps is due to the swelling of the gland within its fibrous capsule. [3] Apart from viral infection, other infections, such as bacterial, can cause parotitis (acute suppurative parotitis or chronic parotitis).
Beta-lactam agents such as amoxicillin and ampicillin are antibiotics that are effective against H. parainfluenzae. The Duration of Antibiotic Therapy depends on the severity of the infection. In 40% of infective endocarditis cases caused by H. parainfluenzae, the best treatment is a valve replacement. [4]
Chronic sclerosing sialadenitis is a chronic (long-lasting) inflammatory condition affecting the salivary gland.Relatively rare in occurrence, this condition is benign, but presents as hard, indurated and enlarged masses that are clinically indistinguishable from salivary gland neoplasms or tumors.
Sialolithiasis (also termed salivary calculi, [1] or salivary stones) [1] is a crystallopathy where a calcified mass or sialolith forms within a salivary gland, usually in the duct of the submandibular gland (also termed "Wharton's duct").
Pneumoparotitis (also termed pneumosialadenitis [1] wind parotitis, [1] surgical mumps, [2] or anaesthesia mumps), [2] is a rare cause of parotid gland swelling which occurs when air is forced through the parotid (Stensen) duct resulting in inflation of the duct.