MeSH

A watery fluid that is continuously produced in the CHOROID PLEXUS and circulates around the surface of the BRAIN; SPINAL CORD; and in the CEREBRAL VENTRICLES.

Used for the presence or analysis of substances in the cerebrospinal fluid; also for examination of or changes in cerebrospinal fluid in disease states.

Year introduced: 1967

Discharge of cerebrospinal fluid through a hole through the skull bone most commonly draining from the nose (CEREBROSPINAL FLUID RHINORRHEA) or the ear (CEREBROSPINAL FLUID OTORRHEA).

Year introduced: 2015

Manometric pressure of the CEREBROSPINAL FLUID as measured by lumbar, cerebroventricular, or cisternal puncture. Within the cranial cavity it is called INTRACRANIAL PRESSURE.

Year introduced: 1989

Discharge of cerebrospinal fluid through the nose. Common etiologies include trauma, neoplasms, and prior surgery, although the condition may occur spontaneously. (Otolaryngol Head Neck Surg 1997 Apr;116(4):442-9)

Year introduced: 2000(1966)

Discharge of cerebrospinal fluid through the external auditory meatus or through the eustachian tube into the nasopharynx. This is usually associated with CRANIOCEREBRAL TRAUMA (e.g., SKULL FRACTURE involving the TEMPORAL BONE;), NEUROSURGICAL PROCEDURES; or other conditions, but may rarely occur spontaneously. (From Am J Otol 1995 Nov;16(6):765-71)

Year introduced: 2000(1966)

Tubes inserted to create communication between a cerebral ventricle and the internal jugular vein. Their emplacement permits draining of cerebrospinal fluid for relief of hydrocephalus or other condition leading to fluid accumulation in the ventricles.

Year introduced: 1972(1969)

Proteins in the cerebrospinal fluid, normally albumin and globulin present in the ratio of 8 to 1. Increases in protein levels are of diagnostic value in neurological diseases. (Brain and Bannister's Clinical Neurology, 7th ed, p221)

Reduction of CEREBROSPINAL FLUID pressure characterized clinically by ORTHOSTATIC HEADACHE and occasionally by an ABDUCENS NERVE PALSY; HEARING LOSS; NAUSEA; neck stiffness, and other symptoms. This condition may be spontaneous or secondary to CEREBROSPINAL FLUID LEAK; SPINAL PUNCTURE; NEUROSURGICAL PROCEDURES; DEHYDRATION; UREMIA; trauma (see also CRANIOCEREBRAL TRAUMA); and other processes. Chronic hypotension may be associated with subdural hematomas (see HEMATOMA, SUBDURAL) or hygromas. (From Semin Neurol 1996 Mar;16(1):5-10; Adams et al., Principles of Neurology, 6th ed, pp637-8)

Year introduced: 1998

Leakage and accumulation of CEREBROSPINAL FLUID in the subdural space which may be associated with an infectious process; CRANIOCEREBRAL TRAUMA; BRAIN NEOPLASMS; INTRACRANIAL HYPOTENSION; and other conditions.

Year introduced: 1991(1972)

Date introduced: November 5, 2012

An inherited encephalopathy, the most severe form of which is characterized by cerebral atrophy, leukodystrophy, intracranial calcifications, and chronic cerebrospinal fluid LYMPHOCYTOSIS. Although AGS presents similarly to in utero viral infection, patients are negative for prenatal infections . MICROCEPHALY and neurologic dysfunction occurs later in infancy. Other abnormalities include THROMBOCYTOPENIA, hepatosplenomegaly, elevated hepatic transaminases, and intermittent fever. Mutations in the TREX1, RNASEH2A, RNASEH2B, and RNASEH2C genes have been identified. OMIM: 225750

Date introduced: June 25, 2010

non-immunoglobulin in cerebrospinal fluid of patients with Alzheimer's disease & cerebral amyloid angiopathy

Date introduced: October 7, 1985