You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Stenosis of aqueduct of sylvius results in? and explain in detail?
Aqueduct of sylvius connects 3rd ventricle to the 4th one. Obstruction to Aqueduct of sylvius Enlargement of 3rd ventricle Dilatation of the ventricle proximal to the obstruction(3rd ventricle)