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1.
Rev. méd. Minas Gerais ; 23(supl.3)out. 2013.
Article in Portuguese | LILACS-Express | LILACS | ID: lil-719989

ABSTRACT

Introdução: O melanoma é essencialmente cutâneo. Em alguns pacientes, não é possível determinar a localização do tumor primário. A incidência de melanoma com sítio primário desconhecido varia de 2 a 15%. Objetivos: Determinar se há diferença de sobrevida global entre os pacientes com melanoma primário conhecido comparado aos pacientes com melanoma primário desconhecido. Métodos: Foi realizada análise retrospectiva de pacientes com melanoma no banco de dados da Oncologia Cirúrgica e Cirurgia do Aparelho Digestivo (ONCAD) e identificados aqueles com sítio primário desconhecido e metástases para diferentes locais. Resultados: O principal local de metástases foi o linfonodo (50%) - inguinais (25%),axilares (16%) e periaórticos (8,3%). Metástases pulmonares foram encontradas em três pacientes (25%). Metástases para fígado, osso e pele foram observadas em um caso cada (8,3%). Conclusão: A evolução clínica dos pacientes metastáticos com melanoma de sítio primário desconhecido é melhor em relação aos pacientes metastáticos com lesão primária conhecida, quando os dois grupos estão no mesmo estádio. Dessa forma, o fator mais determinante do curso clínico e do prognóstico éa localização das metástases. A maioria dos pacientes que apresenta doença sistêmica ao diagnóstico perde a chance de cura, como muitos pacientes com cutâneo primário fino e doença regional ao diagnóstico.


Introduction: Melanoma is essentially cutaneous. In some patients, it is not possible to determine the location of the primary tumor. The incidence of melanoma of unknown primary site varies from 2 ? 15%. Objectives: To determine whether there is difference in overall survival between patients with known primary melanoma compared to patients with unknown primary melanoma. Methods: A retrospective analysis of patients with melanoma in the database of Surgical Oncology and Digestive Surgery (ONCAD) was performed and identified those with unknown primary site and metastases to different locations. Results: Lymph node was the main site of metastases (50%) - inguinal (25%), axillary (16%) and periaortic (8.3%). Pulmonary metastases were found in three patients ( 25%). Metastasis to the liver, bone and skin were observed in one case each (8.3%). Conclusions: The clinical course of patients with metastatic melanomaof unknown primary site is better than metastatic patients with known primary lesion, when both groups are on the same stage. Thus, the most relevant determining factor affecting clinical course and prognosis is the metastasis location. Most patients presenting systemic disease at diagnosis loses the chance of cure as many patients with thin primary cutaneous and regional disease at diagnosis.

2.
Appl. cancer res ; 31(4): 146-150, 2011. tab, ilus
Article in English | LILACS, Inca | ID: lil-655870

ABSTRACT

Anal melanoma is a rare aggressive disease, representing 0.4% to 1.6% of all melanomas and 1% of tumors of the anal canal. Its diagnosis is complex and in most cases is made in later stages with diffused disease, which contributes to its poor prognosis. Due to its low incidence, most studies are based on case reports and there is no consensus on the best diagnostic and therapeutic course of treatment. As a rule, the cure rate is low and the expected 5-year survival is 20%. As a consequence, therapy should be individualized, evaluated on a case-by-case basis, aiming locoregional control to provide better quality of life for the patient.


Subject(s)
Humans , Melanoma , Rectal Neoplasms , Anus Neoplasms
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