RACIONAL: No tratamento cirúrgico do câncer colorretal, a linfadenectomia é considerada adequada quando pelo menos 12 linfonodos são removidos. OBJETIVO: Avaliar se a operação videolaparoscópica afeta positivamente as taxas de linfadenectomia adequada. MÉTODOS: Estudo observacional foi realizado com pacientes submetidos à operação aberta ou videolaparoscópica para câncer colorretal entre 2008 e 2013. As seguintes variáveis foram coletadas: gênero, idade, localização do tumor, histologia, grau de diferenciação, estágio do tumor, número de linfonodos removidos , e número de nódulos linfáticos afetados pela doença. RESULTADOS: Um total de 62 pacientes com câncer colorretal foram incluídos; 42 (67,7%) receberam operação aberta e 20 (32,3%) laparoscópica. Quanto à linfadenectomia, média de 13 nódulos linfáticos (95% CI: 10-16) foram removidos no grupo que recebeu a operação aberta, enquanto 19 linfonodos foram removidos (IC 95%: 14-24) no grupo laparoscópico (p=0,021). Linfadenectomia adequada (remoção de, pelo menos, 12 nódulos linfáticos) foi obtida em 58,1% dos casos no total, em 50,0% dos pacientes que receberam a operação aberta, e em 75% dos que receberam a laparoscópica. Pacientes não idosos e aqueles com estágio avançado da doença eram mais propensos a receber linfadenectomia adequada (p=0,004 e p=0,035, respectivamente). CONCLUSÃO: O estágio da doença e a idade do paciente foram os fatores que tiveram a maior influência sobre a realização de linfadenectomia adequada. O tipo de procedimento cirúrgico não afetou o número de linfonodos removidos.

BACKGROUND: In the surgical treatment of colorectal cancer, a lymphadenectomy is considered adequate when at least 12 lymph nodes are removed. AIM: To evaluate whether videolaparoscopic surgery positively affects the rates of adequate lymphadenectomy. METHODS: An observational study was conducted with patients undergoing either open or videolaparoscopic surgery for colorectal cancer between 2008 and 2013. The following variables were collected: gender, age, tumor site, histology, degree of differentiation, tumor stage, number of lymph nodes removed, and number of lymph nodes affected by the disease. RESULTS: A total of 62 patients with colorectal cancer were included; 42 (67.7%) received open surgery, and 20 (32.3%) laparoscopic surgery. Regarding lymphadenectomy, a mean of 13 lymph nodes (95% CI: 10-16) were removed in the group that received open surgery, while 19 lymph nodes were removed (95% CI: 14-24) in the laparoscopic surgery group (p=0.021). Adequate lymphadenectomy (removal of at least 12 lymph nodes) was achieved in 58.1% of the total cases, in 50.0% of the patients who received open surgery, and in 75% of those who received laparoscopic surgery. Non-elderly patients and those with an advanced disease stage were more likely to receive an adequate lymphadenectomy (p=0.004 and p=0.035, respectively). CONCLUSION: Disease stage and patient age were the factors that had the greatest influence on achieving an adequate lymphadenectomy. The type of surgery did not affect the number of lymph nodes removed.

Dermatofibrosarcoma protuberans is a fibrohistiocytic tumor of intermediate malignancy with aggressive localized growth, high recurrence rate, but low metastatic potential. It appears as a hardened plaque, with slow growth, upon which the development of nodules occurs. It predominates in the trunk and is unusual in acral locations. Histopathology reveals spindle cells with storiform pattern and cartwheel-like or whirlwind-like aspect. Immunohistochemistry shows positivity for CD34. The treatment is surgical. We report a case of long evolution, with an unusual location, that relapsed after surgery, to emphasize the importance of early diagnosis and proper treatment, avoiding aggressive resections with increased morbidity.