<unk>  as seen on a CT image of the brain Axial CT showing a typical<unk>  left temporal Diagnosis is principally by MRI. Frequently,<unk> s are incidental findings on MRI scans performed for other clinical reasons. In practice, diagnosis of symptomatic<unk> s requires symptoms to be present, and many with the disorder never develop symptoms. Additional clinical assessment tools that can be useful in evaluating a patient with<unk> s include the mini-mental state examination (MMSE), a brief questionnaire-based test used to assess cognition. Classification<unk> s can be found on the brain or on the spine. Intracranial<unk> s usually occur adjacent to the<unk> al cistern. Spinal<unk> s may be extradural, intradural, or perineural and tend to present with signs and symptoms indicative of a radiculopathy.<unk> s may also be classified as primary (congenital) or secondary (acquired) and have been reported in humans, cats, and dogs.<unk> s can be relatively asymptomatic or present with insidious symptoms; for this reason, diagnosis is often delayed.
Arachnoid cyst
Subdural hygroma
Labyrinthine fistula
Frontal horn cyst
Cystic hygroma
Choroid plexus papilloma
Choroidal fissure cyst
Hemicrania continua