Introduction: Hydrocephalus (HCP) remains one of the commonest pathologies treated in developing countries. Endoscopic third ventriculostomy (ETV) has become the alternative to shunt-divergen procedures in the treatment of many pathologies of the cerebral fluid in the brain. Age has been considered a limitation to perform the procedure, we started to perform ETV In younger patients earlier than many other units. Objectives: In this study, we demonstrate the overall efficacy of ETV in infants younger than 1-year of age and to subsequently report the outcome of this procedure. Methods: From 2000 till 2016 we have performed a total of 386 cases of ETV of all ages. 71-cases were infants (below 1-year of age). Our study was undertaken to evaluate these cases. Patients were divided into two subgroups according to the cause of hydrocephalus; obstructive HCP, communicating HCP. Results: Mean time for follow up was 52 months. Mean age at surgery was 137days (7- 351days). The population included 31-females and 40-males, while10 infants were premature. Success rates were; 91.6%, 63.6% correspond to each sub-group with an overall success rate of 73.24%. Conclusion: ETV in infants is feasible, technically more demanding. Success rate justifies the procedure to be performed in such age group of patients. ETV can be used, attentively, in cases of hydrocephalus associated with MMC, morbidity and mortality does not differ from the general population.

A nongerminomatous germ cell tumor occurring in the brain parenchyma is extremely rare. A 2-year-old boy presented with symptoms of abnormal movements in the hand and mouth. MRI scanning revealed a lesion occupying the left temporoparietal region. Craniotomy was performed and the tumor was removed by en bloc resection. Histological examination revealed that the tumor was arranged in a reticular pattern, and Schiller-Duval bodies were evident at the center of the tumor. Immunohistochemical study showed that the tumor cells were positive for alpha-fetoprotein and vimentin, but negative for glial fibrillary acidic protein. The histological diagnosis was pure yolk sac tumor.

A nongerminomatous germ cell tumor occurring in the brain parenchyma is extremely rare. A 2-year-old boy presented with symptoms of abnormal movements in the hand and mouth. MRI scanning revealed a lesion occupying the left temporoparietal region. Craniotomy was performed and the tumor was removed by en bloc resection. Histological examination revealed that the tumor was arranged in a reticular pattern, and Schiller-Duval bodies were evident at the center of the tumor. Immunohistochemical study showed that the tumor cells were positive for alpha-fetoprotein and vimentin, but negative for glial fibrillary acidic protein. The histological diagnosis was pure yolk sac tumor).

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