Hydrocephalus is an excessive accumulation of spinal fluid (CSF) surrounding the brain and medulla spinalis. The excessive accumulation of CSF leads to abnormal dilation of brain ventricles that causes harmful pressure on the brain tissues. Causes: Developmental disorders or tube defects like rachischisis and encephalocele. Complications of premature birth like intraventricular haemorrhage, diseases like meningitis, tumours, … Read more