Lesion on the oral mucosa due to American Tegumentary Leishmaniasis and on the lip due to Squamous Cell Carcinoma: a rare case report.

American Tegumentary Leishmaniasis is an endemic parasitic disease in several regions, including Brazil. Squamous Cell Carcinoma is the main malignant neoplasm of the head and neck and is strongly linked to chronic sunburn. We present a rare case in which a patient exhibits the manifestation of both diseases in the oral region.