Pleocytosis (Pleocytosis)

Pleocytosis is the presence of an abnormally large number of white blood cells, mainly lymphocytes, in the cerebrospinal fluid that bathes the brain and spinal cord.

An increased content of leukocytes in the cerebrospinal fluid indicates an inflammatory process in the central nervous system. Pleocytosis is often observed in diseases such as meningitis, encephalitis, neurosyphilis, neuroborreliosis, brain tumors, multiple sclerosis, etc.

The main causes of pleocytosis are viral, bacterial and fungal infections. Other causes may include autoimmune diseases, brain and spinal cord injuries, and tumors.

Pleocytosis is diagnosed by lumbar puncture and cerebrospinal fluid analysis. If an elevated level of white blood cells is detected, additional research must be carried out to clarify the cause and select the optimal treatment.

Pleocytosis is the presence of an abnormally large number of lymphocytes in the cerebrospinal fluid that bathes the brain and spinal cord.

Pleocytosis usually indicates an inflammatory process in the central nervous system. An increased number of lymphocytes in the cerebrospinal fluid can be caused by infectious (eg, meningitis) and non-infectious causes (eg, multiple sclerosis).

The diagnosis of pleocytosis is made based on analysis of cerebrospinal fluid obtained by lumbar puncture. The normal number of lymphocytes in the cerebrospinal fluid is 0-5 cells/μl. With pleocytosis, their number exceeds 5 cells/μl.

Additional cerebrospinal fluid tests and imaging studies may be needed to determine the specific cause of pleocytosis. Treatment is aimed at eliminating the underlying disease that caused pleocytosis.

Pleocytosis is the presence of abnormally high levels of lymphocytes in the cerebrospinal fluid (CSF) that surrounds the brain.

Cerebrospinal fluid contains cells that protect the brain from damage and infection. Lymphocytes, which are part of the immune system, play an important role in protecting the body from infections and tumors.

However, if too many lymphocytes are found in the cerebrospinal fluid, it may indicate an infection or tumor in the brain. In addition, pleocytosis may be a sign of other diseases, such as meningitis, encephalitis, or other inflammatory processes in the brain and spinal cord.

To diagnose pleocytosis, a cerebrospinal fluid test must be performed. This can be done by withdrawing a small amount of fluid from the spinal canal through a special needle. After this, the liquid is sent to the laboratory for analysis.

If a large number of lymphocytes are found in the cerebrospinal fluid, this may be a sign of infection or tumor. However, for an accurate diagnosis it is necessary to conduct additional studies and tests.