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Clinicopathologic Conference
A biphasic sessile mass of the buccal mucosa
During a routine dental hygiene appointment, a 20-year-old Asian American female was noted to have an asymptomatic, 1.5-cm, sessile nodule of unknown duration on the left buccal mucosa. The patient had been aware of the lesion for several months. It had a biphasic clinical appearance: The inferior aspect had an erythematous, slightly lobular appearance, with intact surface epithelium, whereas the superior aspect was slightly cyanotic, with prominent overlying superficial vessels (Figure 1). The lesion was nontender to palpation.Adherent white plaques in a nonsmoker
A 48-year-old native-born Caucasian female, nonsmoker, presented to the Oral and Maxillofacial Pathology Clinic on referral from a local oral surgeon for multiple well-defined white plaques of 6 months’ duration. The mandibular anterior attached gingiva and the maxillary and mandibular vestibules at the frenula were involved, with smaller areas of bilateral buccal mucosa and tonsillar pillars. The lesions appeared homogeneous, bright white, and smooth surfaced (Figures 1A to 1D). She denied any history of pain or tenderness, and there was no history of recent dental treatment, any type of trauma, or any recent change in the use of oral health care products.Tender swelling of the posterior mandible
An 18-year-old male presented to an oral and maxillofacial surgeon for evaluation of his third molars and radiolucency of the posterior right mandible. The patient had noticed a “bump” in the area of radiolucency for approximately 4 months. The bump caused slight discomfort that was not explained by trauma, temperature, or occlusal forces. The patient's health history was noncontributory.
