Hypnic Headache (Alarm Clock Headache)
What is Hypnic Headache (Alarm Clock Headache)? Headaches and chronic pain are some of the top …
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Migraine & Headaches
Postcraniotomy Headache
What is Postcraniotomy Headache? The upper part of the skull, or calvaria, works like a protective …
Posttraumatic Headache (Headache After Injury)
What is Posttraumatic Headache (Headache After Injury)? Post-traumatic headaches (PTHA) often follow a traumatic brain injury …
Thrombotic Thrombocytopenic Purpura
What is Thrombotic Thrombocytopenic Purpura? Thrombotic Thrombocytopenic Purpura (TTP) is a specific kind of anemia— a …
Syringomyelia
What is Syringomyelia? Syringomyelia is a condition where abnormal circulation of a fluid called cerebrospinal fluid …
Medication-Overuse Headache
What is Medication-Overuse Headache? Medication-overuse headache (MOH) is a common disorder that causes a lot of …
Vinyl Chloride Toxicity
What is Vinyl Chloride Toxicity? Vinyl chloride monomer (VCM) is a colorless gas with a sweet …
Postconcussive Syndrome
What is Postconcussive Syndrome? Traumatic brain injury (TBI), a condition that can happen to anyone at …
Vasomotor Rhinitis
What is Vasomotor Rhinitis? Nonallergic rhinitis (NAR) is a condition that causes constant symptoms like a …
Subfalcine Herniation
What is Subfalcine Herniation? Herniation is when a part of the brain moves from its usual …
Reversible Cerebral Vasoconstriction Syndromes
What is Reversible Cerebral Vasoconstriction Syndromes? Reversible Cerebral Vasoconstriction Syndrome (RCVS) is a condition that causes …
Retinal Migraine Headache
What is Retinal Migraine Headache? Migraine is a common condition that was first documented in 1882 …
Patent Foramen Ovale
What is Patent Foramen Ovale? A patent foramen ovale (PFO) is part of a group of …
Optic Nerve Glioma
What is Optic Nerve Glioma? Optic nerve gliomas are non-cancerous tumors that are a type of …