Oral @entity320 is uncommon, accounting for 1-8% of all @entity320 . All previous papers have reported small numbers of cases or have retrospectively reviewed case reports from the literature. The following case reports concern @entity320 seen at the Instituto Nacional de Cancerolog  a, Mexico City, during the period of 1982-96. Demographic, clinical and histopathological data were collected. Our 15 @entity1 consisted of 6 males and 9 females. The mean age was 52.6 years (range: 35 to 80 years). The hard palate was the most common area affected with 11 cases (73%). At the time of the initial examination, a pigmented mass was apparent in 100% of the @entity1 . All our surgical cases were treated with wide resection; 8 @entity1 received adjuvant radiation, 4 were treated with surgery alone and 1 case received radiation and chemotherapy before the surgery. Local control of the @entity75 was possible in 14 of the 15 cases. Some @entity1 received therapeutic or elective lymph node dissection. The median survival was 16.9 months (mean: 12.5 months). The 2- and 5-year survival rates were 26.6 and 6.6%, respectively.

XXXX of the oral cavity: diagnosis and treatment experience in a Mexican population.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity75 :: ('MESH:D001927', 'Disease') :: ['primary lesion'] @entity320 :: ('MESH:D008545', 'Disease') :: ['malignant melanoma of the oral cavity', 'malignant melanomas', 'malignant melanoma']
@entity320 :: (MESH:D008545,Disease) :: ['Malignant melanoma']
