Mesothelioma can take a long time to develop, and the symptoms of the disease often do not present themselves until the cancer has progressed to later stages. Early signs of mesothelioma can be easily mistaken for common, everyday ailments, and as a result, early symptoms are often ignored, dismissed, or misdiagnosed.
Freebase(0.00 / 0 votes)Rate this definition: Electroencephalography is the recording of electrical activity along the scalp. EEG measures voltage fluctuations resulting from ionic current flows within the neurons of the brain.
Purpose of the Electroencephalography. 1  To identify and evaluate the cause of seizures. 2  To aid in the diagnosis of intracranial (within the skull) lesions, such as an abscess or tumor. 3  To evaluate brain wave activity in people with brain or spinal cord infections (such as meningitis or encephalitis); head injury; and psychiatric conditions.