Apart from all the laboratory tests, imaging studies and assessments a few other tests like spinal tap and evoked potentials are present.  These help in differentiating a few brain lesions like infections and in detection of the subclinical encephalopathy.
Encephalopathy other diagnostic studies
Encephalopathy echocardiography or ultrasound
Encephalopathy other imaging findings
Brain tumor other diagnostic studies
Brain abscess other imaging findings
Brain tumor other imaging findings
Viral encephalitis risk factors
Bacterial meningitis other diagnostic studies