Over the past decades, cancer has become one of the toughest challenges for health professionals. The epidemiologists are increasingly directing their research efforts on various malignant tumor worldwide. Of note, incidence of cancers is on the rise more quickly in developed countries. Indeed, great endeavors have to be made in the control of the life-threatening disease. As we know it, pancreatic cancer (PC) is a malignant disease with the worst prognosis. While little is known about the etiology of the PC and measures to prevent the condition, so far, a number of risk factors have been identified. Genetic factors, pre-malignant lesions, predisposing diseases and exogenous factors have been found to be linked to PC. Genetic susceptibility was observed in 10% of PC cases, including inherited PC syndromes and familial PC. However, in the remaining 90%, their PC might be caused by genetic factors in combination with environmental factors. Nonetheless, the exact mechanism of the two kinds of factors, endogenous and exogenous, working together to cause PC remains poorly understood. The fact that most pancreatic neoplasms are diagnosed at an incurable stage of the disease highlights the need to identify risk factors and to understand their contribution to carcinogenesis. This article reviews the high risk factors contributing to the development of PC, to provide information for clinicians and epidemiologists.

Hydrocephalus is a pathologic dilatation of the ventricles which occurs progressively when provoked by a disruption in the production, circulation and reabsorption of the cerebrospinal fluid (CSF). This study aims to report the impact of co-morbidities on the surgical outcome of pediatric hydrocephalus in Guinea. It was a retrospective clinical study carried out at Friendship hospital, Sino-Guinea of Kipe, for 13 months. 107 patients were scheduled for hydrocephalus surgery. The incidence of Hydrocephalus was 8.20% related to the 107 patients admitted during our period of study. The main comorbitdies encounter were, anemia (73 cases), respiratory infection (38 cases) malaria (malaria 37 cases), malnutrition (14 cases), deshydratation (11 cases), candidosis (7 cases), respiratory detress (6 cases), cutaneous infections (6 cases), convulsion (6 cases), meningitis (5 cases), otorhinolaryngology infection (2 cases), septicemia (2 cases) tardive neonatal infection (91 cases). The outcome of pediatric hydrocephalus, including surgical complications, neurological sequelae and academic achievement, has been the matter of many studies. However, much uncertainty remains, regarding the very long-term and social outcome, and the determinants of complications and clinical outcome. Hydrocephalus is a commonly encountered pediatric pathology in sub-Saharan Africa where it constitutes a major public health concern. The etiologies are still dominated by neonatal infections. The treatment is essentially a surgical approach.

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