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Arachnoid cysts are cerebrospinal fluid covered by arachnoidal cells and collagen [1] that may develop between the surface of the brain and the cranial base or on the arachnoid membrane, one of the three meningeal layers that cover the brain and the spinal cord. [2] Primary arachnoid cysts are a congenital disorder whereas secondary arachnoid ...
Porencephaly is an extremely rare cephalic disorder involving encephalomalacia. [1] It is a neurological disorder of the central nervous system characterized by cysts or cavities within the cerebral hemisphere. [2] Porencephaly was termed by Heschl in 1859 to describe a cavity in the human brain. [3] Derived from Greek roots, the word ...
Frontal lobe disorder, also frontal lobe syndrome, is an impairment of the frontal lobe of the brain due to disease or frontal lobe injury. [5] The frontal lobe plays a key role in executive functions such as motivation, planning, social behaviour, and speech production. Frontal lobe syndrome can be caused by a range of conditions including ...
Megalencephalic leukoencephalopathy with subcortical cysts (MLC, or Van der Knaap disease) is a form of hereditary CNS demyelinating disease. It belongs to a group of disorders called leukodystrophies. It is characterized by early-onset enlargement of the head (macrocephaly) as well as delayed-onset neurological deterioration to include ...
Frontal horn cyst. A frontal horn cyst or connatal cyst is a cystic area in the brain. It is sometimes found in newborn babies with an incidence rate of 0.4-6%. It is adjacent to the superolateral margin of the body and frontal horn of the lateral ventricles, and is believed to represent a normal variant with no effect on neurological ...
Dermatology, general surgery. A sebaceous cyst is a term commonly used to refer to either: [1] Epidermoid cysts (also termed epidermal cysts, infundibular cyst) Pilar cysts (also termed trichelemmal cysts, isthmus-catagen cysts) Both of the above types of cysts contain keratin, not sebum, and neither originates from sebaceous glands.
Pediatrics. Periventricular leukomalacia (PVL) is a form of white-matter brain injury, characterized by the necrosis (more often coagulation) of white matter near the lateral ventricles. [1][2] It can affect newborns and (less commonly) fetuses; premature infants are at the greatest risk of neonatal encephalopathy which may lead to this condition.
Intracranial hemorrhage is a serious medical emergency because the buildup of blood within the skull can lead to increases in intracranial pressure, which can crush delicate brain tissue or limit its blood supply. Severe increases in intracranial pressure (ICP) can cause brain herniation, in which parts of the brain are squeezed past structures ...