Characteristics of primary cutaneous melanoma in the Colombian National Cancerology Institute 2006-2010
Keywords:
Cutaneous melanoma, Skin cancer, Epidemiology, ColombiaAbstract
Objectives: To describe the main characteristics of cutaneous melanoma in the National Cancerology Institute, a cancer reference center in Bogota, Colombia.
Materials and methods: A descriptive, retrospective study was conducted on the demographic, clinical and histological characteristics of patients diagnosed with primary cutaneous melanoma in the National Cancerology Institute between 2006 and 2010
Results: A total of 599 patients were included, of whom 57.4% were females (n= 344) and 42.6% males (n=255). The mean age at diagnosis was 60.8 years. The majority of cases, 56.3% (n=329), were from Bogota. It was also the most common urban area where the patients had their usual residence (n=500). The mean annual frequency was 115 new cases per year. The most frequent location was acral, with 42.2% (n=253), followed by head and neck (n=186). In accordance with the location, the most common sub-type was acral lentiginous melanoma, with con 43.7% (n=262), followed by lentigo maligna, with 24% (n=144). As regards the depth, a similar frequency was observed for melanomas in situ and melanomas with Breslow >4 mm, both with 19% of the cases. It was found that the large majority of the lentigo maligna, 75% (n=108) were in situ or with a Breslow ≤1 mm. On the other hand, acral lentiginous and nodular melanomas had a higher frequency of Breslow >4 mm (with 26.3% n=69 and 45.4% n=10, respectively). Stage III was the most common stage, with 26.2% (n=157) of the cases.
Conclusions: A higher percentage of melanomas were observed in women, as well as a higher frequency of acral melanomas. A significant number of patients were in an advanced stage, thus greater action is required for the early detection of melanoma.
Author Biographies
Flavia Pozzobona, Universidad Nacional de Colombia
Universidad Nacional de Colombia, Bogotá, D. C., Colombia
Álvaro Acosta, Instituto Nacional de Cancerología
Clínica de Piel, Instituto Nacional de Cancerología, Bogotá, D. C., Colombia
Alexander Carreño, Instituto Nacional de Cancerología
Grupo de Investigación Clínica, Instituto Nacional de Cancerología, Bogotá, D. C., Colombia
Eduardo Fierro, Universidad Nacional de Colombia
Universidad Nacional de Colombia, Bogotá, D. C., Colombia
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