[Embryonic carcinoma associated to teratoma, in a Xikrin indian]

The authors present a case of non-seminoma (NS) carcinoma of the testis (CT) in a young Xikrin indian, from northern Caiapó, southeast Pará, in eastern Amazonia.

The patient developed a left vegetative supraclavicular metastasis with progressive evolution during 5 months. After being brought to São Paulo, a right tumoral testis was observed on physical examination. The laboratory tests showed alpha-feto protein (AFP) 182 U/mL, beta-chorionic gonadotrophin (beta-HCG) 43 mIU/mL. The result of the anatomopathological examination of the supraclavicular metastasis was embryonic carcinoma and that of the right testis was NS, embryonic carcinoma with mature teratoma areas. The patient was submitted to partial surgery of the supraclavicular metastasis and removal of the tumoral testis, followed by three cycles of chemotherapy. After the latter, AFP and beta-HCG returned to normal.

There is a world-wide record of increase in the incidence of germinative carcinomas among Caucasoids. The interest of the presentation of this case lies in the fact that it is the first incidence of differentiated carcinoma, NS, in the ethnic group of Brazilian indians and also its good evolution in spite of a late diagnosis.