Diabetic sialadenosis presents as diffuse, nontender, bilateral parotid enlargement.
HIV
Oral candidiasis may be the presenting infection in HIV.
Oral hairy
Leukoplakia: A condition commonly considered precancerous in which thickened white patches of epithelium occur on the mucous membranes especially of the mouth.
leukoplakia occurs in 20% of asymptomatic HIV-infected individuals and is triggered by EBV infection.
Kaposi’s sarcoma presents most commonly on the palate, followed by the gingiva or tongue.
Peutz-Jeghers Syndrome
Autosomal dominant condition characterized by multiple hamartomatous polyps of the GI tract with hyperpigmented maculae of the skin and oral mucosa.
Multiple, small hyperpigmented maculae develop on the lips and buccal mucosa, beginning in infancy.
Wegener’s Granulomatosis
Vasculitis involving the respiratory tract and kidneys.
Can cause swollen, red, granular gingival lesions, termed "strawberry gingivitis".
Ulceration of the gingival lesions is pathognomonic for Wegener’s disease.