Abstract
Adenoid cystic carcinoma (ACC) is a relatively rare tumor of the salivary glands with poor prognosis due to a high rate of recurrence and delayed onset of distant metastases. The most common symptom is a slow growing, painful mass due to perineural invasion. A 36-year-old woman presented with the chief complaint of a painful “small ball” in her lower lip for 2 years. Clinical examination showed a small submersed nodule with normal labial mucosa. Due to persistent pain and presence of the nodule, a surgery procedure was performed and the material was sent for histological evaluation. A diagnosis of ACC with a cribriform pattern was obtained and the patient was referred to a head and neck surgery service. Complementary examinations did not reveal nodal or distant metastases, and only surgical treatment was performed. After 5 years of follow-up, the patient has not shown any local or distant metastases.
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