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 …
Cardiac Chromaffin Cell Pheochromocytoma
What is Cardiac Chromaffin Cell Pheochromocytoma? Cardiac pheochromocytomas (CPs) are extremely rare tumors that originate inside …
Postictal Seizure State
What is Postictal Seizure State? The postictal state is a period that occurs after a seizure …
Brain Abscess
What is Brain Abscess? A brain abscess is a specific area of the brain, which has …
Chloroquine and Hydroxychloroquine Toxicity
What is Chloroquine and Hydroxychloroquine Toxicity? Chloroquine and hydroxychloroquine are types of drugs known as 4-aminoquinoline …
Chiari Malformation Type 2 (Arnold-Chiari malformation)
What is Chiari Malformation Type 2 (Arnold-Chiari malformation)? In the late 1800s, doctors Julius Arnold and …
Chiari Malformation Type 1
What is Chiari Malformation Type 1? Chiari malformations are a range of abnormalities at the back …
Nummular Headache (Coin-shaped Headache)
What is Nummular Headache (Coin-shaped Headache)? The International Classification of Headache Disorders sorts headache disorders into …
Melas Syndrome
What is Melas Syndrome? Mitochondrial encephalomyopathy with lactic acidosis and stroke-like episodes (MELAS) syndrome is a …
Carotid Artery Fibromuscular Dysplasia
What is Carotid Artery Fibromuscular Dysplasia? Fibromuscular dysplasia (FMD) is a rare disease that affects the …