Infectious Diseases - Oral Pathology

By Dr. Vishaal Bhat on Saturday, 5 January, 2008 with 0 comments

  • Acute suppurative sialadenitis

  • Usually caused by Staphylococcus aureus and group A streptococci that enter salivary ducts from the oral cavity: reduced or absent salivation thought to predispose

  • Ductal epithelium and acini are destroyed by invading inflammatory cells and microabscesses may form

  • Viral sialadenitis

  • Several viruses can cause sialadenitis including paramyxovirus (the mumps virus), coxsackieviruses A and B, influenza viruses and cytomegalovirus—of these mumps is the most common to involve the glands

  • HIV-associated cysts of the parotid

  • HIV infection can cause lymphadenopathy of intraparotid lymph nodes

  • There is marked lymphoid hyperplasia which can be accompanied by the formation of keratin-filled cysts (salivary duct epithelium undergoes metaplastic change)

  • Unilateral or bilateral enlargement of the parotids can result

  • Tuberculosis

  • Tuberculosis may involve intraparotid and paraparotid lymph nodes; infection of these nodes may originate from a tuberculous focus in the mouth or pharynx, or result from dissemination of pulmonary TB

  • Can present as painless mass/masses mimicking a tumour

  • Histologic examination will reveal the typical caseating granulomas and the findings can be confirmed with cultures and special stains

Category: Pathology Notes



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