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We demonstrate a case report of triventricular hydrocephalus due to an aqueductal web and stenosis which presented itself clinically solely with bilateral hand tremors in an adolescent male. The patient underwent Endoscopic third ventriculostomy (ETV) and the subsequent improvement in cerebrospinal fluid (CSF) flow resulted in complete resolution of his tremor. We propose a mechanism involving compression of the rubrospinal tract (or stretching of the frontal premotor area) and advise cranial imaging in cases of hand tremor to exclude this as a potential cause. Neurosurgical review and potential CSF diversion if triventriclar hydrocephalus is established should be considered as positive clinical outcome can be achieved. [ABSTRACT FROM AUTHOR]

A tectal glioma presenting with late-onset aqueduct stenosis and obstructive hydrocephalus is usually categorized as a benign glioma. Apparent clinical or radiological progression justifies biopsy of the tumour. In this case, an unusual tumour shows aggressive and invasive growth after surgical intervention and chemoradiotherapy. [ABSTRACT FROM AUTHOR]

We present the case of a 28-year-old man with cerebrospinal fluid (CSF) rhinorrhoea due to aqueduct stenosis and a pulsion diverticulum of the lateral ventricle into the frontal air sinus. He was successfully treated with an endoscopic third ventriculostomy and open repair of the defect. [ABSTRACT FROM AUTHOR]