Abstract
Objective: Is to report the case of Adenoid Cystic Carcinoma (ACC), showing clinical characteristics, histopathological and radiographic of the injury. Case detailing: Patient female, 41 years old, attended the service, with the main complaint “I came because of tooth swelling”. In the history of the current disease, the patient reported that the lesion appeared approximately two years ago, in the hard palate, the lesion started small, grew slowly and at first presented pain. An intraoral examination revealed an extensive nodular lesion. The hypothesis diagnosed was Pleomorphic Adenoma. An incisional biopsy was performed and was diagnosed with mixed histological pattern: solid and cribriform ACC, being referred to the cancer service, where the patient is undergoing chemotherapy and radiotherapy. Final considerations: ACC is a rare and uncommon malignant tumor of the minor salivary glands. Surgical excision is generally the treatment of choice, and adjuvant radiotherapy can improve patient survival. Several factors are considered for the prognosis of ACC, including the histological type and clinical stage of the disease.This study highlights the importance of performing complementary exams for the correct diagnosis.