Arachnoid cysts of the middle cranial fossa. 1976

R A Smith, and W A Smith

Arachnoid cysts of the middle cranial fossa may present clinically in several different ways. They may remain asymptomatic throughout life, or may cause only local bulging of the skull, with or without exophthalmos. Expansion of the cyst may occur through a ball-valve mechanism of its membrane in communication with the general subarachnoid space leading to increased intracranial pressure with or without localizing neurological deficits. Finally, such cysts are associated with increased vulnerability to the effects of head injury, resulting in hemorrhage either into the cyst or external to the cyst to form a subdural hematoma. Recognition of these various manifestations is essential to proper treatment.

UI MeSH Term Description Entries
D007223 Infant A child between 1 and 23 months of age. Infants
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D001927 Brain Diseases Pathologic conditions affecting the BRAIN, which is composed of the intracranial components of the CENTRAL NERVOUS SYSTEM. This includes (but is not limited to) the CEREBRAL CORTEX; intracranial white matter; BASAL GANGLIA; THALAMUS; HYPOTHALAMUS; BRAIN STEM; and CEREBELLUM. Intracranial Central Nervous System Disorders,Brain Disorders,CNS Disorders, Intracranial,Central Nervous System Disorders, Intracranial,Central Nervous System Intracranial Disorders,Encephalon Diseases,Encephalopathy,Intracranial CNS Disorders,Brain Disease,Brain Disorder,CNS Disorder, Intracranial,Encephalon Disease,Encephalopathies,Intracranial CNS Disorder
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D003560 Cysts Any fluid-filled closed cavity or sac that is lined by an EPITHELIUM. Cysts can be of normal, abnormal, non-neoplastic, or neoplastic tissues. Cyst
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001099 Arachnoid A delicate membrane enveloping the brain and spinal cord. It lies between the PIA MATER and the DURA MATER. It is separated from the pia mater by the subarachnoid cavity which is filled with CEREBROSPINAL FLUID. Arachnoid Mater,Arachnoid Maters,Arachnoids

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