The presence of<unk>  is generally detected through a lumbar puncture followed by clinical analysis of cerebrospinal fluid. When combined with analysis of the appearance and pressure of the tested CSF, along with measurements for the amount of glucose and proteins present, white blood cell counts can be used to detect or diagnose a number of diseases. Among these are subarachnoid hemorrhage, multiple sclerosis, and the various types of meningitis. While a lumbar puncture may return a WBC count within the normal range of 0-5 cells per µL, this does not rule out the possibility of a disease.
Lymphocytic pleocytosis
Monocytosis
Macrocytosis
Poikilocytosis
Anisocytosis
Oligoclonal band
Neuroacanthocytosis
Mastocytosis