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Froin's syndrome – coexistence of xanthochromia, high protein level and marked coagulation of cerebrospinal fluid (CSF). It is caused by meningeal irritation (e.g. during spinal meningitis) and CSF flow blockage by tumour mass or abscess. [1]
Xanthochromia, from the Greek xanthos (ξανθός) "yellow" and chroma (χρώμα) "colour", is the yellowish appearance of cerebrospinal fluid that occurs several hours after bleeding into the subarachnoid space caused by certain medical conditions, most commonly subarachnoid hemorrhage. [1]
Ferritin, an iron storage protein, is over-produced in response to excess heme by glial cells in order to sequester iron, with production ranging from 20.1 to 27.4 times normal levels. Excess iron, ferritin, and red blood cells may result in xanthochromia of the cerebrospinal fluid.
A basilar skull fracture as a cause can give the sign of CSF leakage from the ear, nose or mouth. [4] A lumbar puncture can give the symptom of a post-dural-puncture headache. A cerebrospinal fluid leak can be either cranial or spinal, and these are two different disorders. [5]
A viral infection can directly cause encephalitis or trigger a cascade ending in autoimmunity, with both mechanisms eventually leading to a rise in CSF lymphocyte concentration. [citation needed] For patients with Herpes simplex virus, more than 90% are found to have lymphocytic pleocytosis of varying levels. [5]
A ruptured microaneurysm may cause an intracerebral hemorrhage, presenting as a focal neurological deficit. [12] Rebleeding, hydrocephalus (the excessive accumulation of cerebrospinal fluid), vasospasm (spasm, or narrowing, of the blood vessels), or multiple aneurysms may also occur. The risk of rupture from a cerebral aneurysm varies according ...
Lumbar puncture is performed to measure the opening pressure, as well as to obtain cerebrospinal fluid (CSF) to exclude alternative diagnoses. If the opening pressure is increased, CSF may be removed for transient relief (see below). [8] The CSF is examined for abnormal cells, infections, antibody levels, the glucose level, and protein levels.
[14] [30] MS is also more common in women, while venous diseases are more common in men. Venous pathology is commonly associated with hypertension , infarcts , edema and transient ischemia , and occurs more often with age, however these conditions are hardly ever seen in MS and the disease seldom appears after age 50.