Abstract
The overall incidence of tuberculosis in recent years has markedly decreased through the development of excellent chemotherapeutic agents, and the improvement of public health systems and living standards. Consequently, oral tuberculosis is now rarely encountered.
However, when oral tuberculosis develops, it is frequently accompanied by ulceration. Differential diagnosis from malignant tumors is therefore often difficult. The patient desclibed here is a 59-year-old man with ulceration in the maxillary gingiva. Histopathological examination, performed due to suspicion of a malignant tumor, indicated a diagnosis of gingival tuberculosis. Additional examinations also revealed active pulmonary tuberculosis and esophageal cancer.