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Traumatic neuroma is a rare disorder that represents a reactive proliferation of neural tissue following damage to an adjacent nerve. Clinically, oral lesions usually appear as a nodule of normal or grayish white smooth surface colouration, and patients may complain of pain as a frequent symptom. We report a case of a painless lower lip traumatic neuroma, clinically misdiagnosed as lipoma, in a 24-year-old Caucasian woman. On intraoral examination, a yellowish and smooth sessile, well-delimited, painless, nodular lesion measuring 10 mm x 7 mm x 4 mm in size was observed on the mucosal lower lip. An excisional biopsy was performed and the final diagnosis was traumatic neuroma. After 18 months of follow-up, the patient is asymptomatic and there are no signs of recurrence.

The authors studied the oral manifestations of a sample of 70 diabetic patients, divided into controlled and uncontrolled patients. Medical history and stomatological data were analyzed and diabetic controlled patients were matched to uncontrolled patients. The main symptoms observed were hyposalivation, taste alterations and burning mouth, with the main sign being parotid enlargement. The lesions observed were candidosis of the erythematous type and proliferative lesions both associated to the use of total prosthesis. No pathognomic lesions or alterations could be observed in relation to the disease. The frequency of carriers of Candida albicans and also the lesions observed could be compared to normal patients also using total dentures.