Concepts
11 articles
- Cerebral Hyperperfusion Syndrome
A postoperative state in which regional blood flow rises beyond the tissue’s ability to regulate it.
Recovery & Follow-up - Cerebrovascular Reserve
The capacity of cerebral vessels to increase blood flow when demand rises or pressure changes.
Diagnosis & Imaging - Clinically Isolated Syndrome
A first clinical episode compatible with inflammatory demyelination that may or may not meet criteria for multiple sclerosis.
Diagnosis & Imaging - Goligher Classification
Four grades describing the degree and reducibility of internal hemorrhoid prolapse.
Anatomy & Classification - Internal and External Hemorrhoids
Hemorrhoidal tissue above and below the dentate line, with different symptom patterns and treatment considerations.
Anatomy & Classification - McDonald Criteria
Specialist diagnostic criteria that organize clinical, imaging, cerebrospinal fluid, and optic nerve evidence for multiple sclerosis.
Diagnosis & Imaging - Moyamoya Syndrome
Moyamoya-pattern vasculopathy associated with another medical condition or exposure.
Causes & Genetics - Oligoclonal Bands
Cerebrospinal fluid evidence of intrathecal immunoglobulin production used in selected neurologic evaluations.
Diagnosis & Imaging - Puff-of-Smoke Appearance
The angiographic collateral appearance that gave moyamoya disease its name.
Diagnosis & Imaging - RNF213
A susceptibility gene associated with moyamoya disease in some populations.
Causes & Genetics - Suzuki Staging
An angiographic description of how moyamoya collateral patterns evolve.
Diagnosis & Imaging