Category: Rx Neurology (A – Z)

Symptomatic cerebral syndrome refers to the collection of clinical signs and symptoms that arise when the brain’s normal function is disrupted by an underlying...

Tumor-associated childhood diencephalic syndrome is a rare condition in which a brain tumor affecting the diencephalon leads to a characteristic set of symptoms primarily...

Late-Onset (Childhood) Diencephalic Syndrome is a rare neurological disorder that arises from dysfunction of the diencephalon—the part of the brain that includes the thalamus...

Classical (Infantile) Diencephalic Syndrome—also known as Russell’s syndrome—is a rare neurological disorder of early childhood characterized by profound failure to thrive despite a normal...

Diencephalic syndrome is a rare neurological disorder of infancy and early childhood, characterized by profound weight loss and failure to thrive despite a normal—or...

Symptomatic narcolepsy is a form of narcolepsy that arises secondary to an identifiable underlying condition affecting the brain’s sleep–wake regulatory centers. Unlike primary narcolepsy—where...

Acute Brainstem Syndrome refers to a group of sudden-onset neurological symptoms arising from damage to the brainstem, the vital structure that connects the spinal...

Area Postrema Syndrome (APS) is a neurological condition characterized by intractable nausea, vomiting, and hiccups resulting from dysfunction or lesion of the area postrema—a...

Subclinical Osmotic Demyelination (SOD) refers to a form of osmotic demyelination syndrome (ODS) in which damage to the myelin sheaths of neurons occurs without...

Mixed Osmotic Demyelination Syndrome (Mixed ODS) is a neurological disorder characterized by the destruction of myelin—the protective sheath around nerve fibers—in both the central...

Extrapontine myelinolysis (EPM) is a neurological disorder characterized by damage to the protective myelin sheath of nerve fibers in regions of the brain outside...

Duret hemorrhages are small, linear bleeds within the midline of the brainstem—most often the pons—resulting from downward displacement (transtentorial herniation) of the cerebral hemispheres...

Massive peduncular hemorrhage is a rare but devastating form of intracerebral bleeding, localized to the cerebral peduncle of the midbrain. Because the peduncle carries...

Circumscribed small peduncular hemorrhage is a focal, well-defined bleed within one of the brain’s peduncles—most often the cerebellar peduncles—that measures less than 15 mm...

Lateral peduncular hemorrhage is a rare form of intracerebral hemorrhage that occurs within the lateral aspect of the cerebral peduncle, a structure of the...

A preganglionic sympathetic chain lesion occurs when the second-order neuron of the sympathetic nervous system—running from the spinal cord to the sympathetic ganglia—is damaged...

An internal watershed infarct, also known as an internal border-zone infarct, is a type of ischemic stroke that occurs in the deep white-matter regions...

Cortical watershed infarcts are areas of brain tissue injury that occur at the junctions (or “watersheds”) between two major arterial territories in the cerebral...

A lumbar spinal cord infarct, often called a spinal cord stroke, occurs when the blood supply to the lower (lumbar) portion of the spinal...

A thoracic spinal cord infarct, also known as a spinal cord stroke, occurs when the blood supply to the spinal cord at the thoracic...