Juan José Burgos Bretones

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BACKGROUND AND OBJECTIVE Medulloblastoma is the more frequent malignant cerebral tumor in childhood. PATIENTS AND METHODS This is an observational study of a retrospective cohort in which there were included all the patients diagnosed of medulloblastoma in the last 19 years (1989-2007) in Hospital de Cruces of Baracaldo, Vizcaya, Spain. RESULTS There(More)
Metastatic tumors of the testis are extremely rare, if we exclude leukemias and lymphomas. The present article reports a case of renal adenocarcinoma metastatic to the testis that presented with paraneoplastic syndrome, hematuria and a palpable testicular mass. The literature on metastatic tumors of the testis is briefly reviewed.
A comparative histochemical and morphometric study in two groups of homologous muscles from different tetrapods (rat, pigeon, lizard and frog) was performed. On the basis of their fiber diameters and oxidative enzyme activities, an initial correlation between fiber types of all animals is observed, although in the lizard and frog muscles, another fiber type(More)
Immotile cilia syndrome is an uncommon disorder, with an autosomal recessive mode of inheritance; the incidence is about 1/25,000 and is a cause of chronic disease of both upper and lower airways, male infertility and, in 50%, situs inversus totalis. It's pathogenesis lies in a variety of genetically determined alteration of ciliary ultrastructure. We(More)
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