Knowledge of the patterns and mechanisms of contrast enhancement may helpful for image assessment and differential diagnosis. We aimed to review the radiologic findings of different types of brain and meninges enhancement.
Central nervous system (CNS) enhancement is composed of intravascular and interstitial enhancement.
Various physiological and pathological reasons such as angiogenesis,
hypertension and inflammation may cause abnormal enhancement.
There are two main components of CNS which have their own patterns of enhancement,
are called extraaxial and intraaxial areas.
Extraaxial enhancing includes pachymeningeal (dura-arachnoid),
leptomeningeal (pia-arachnoid) enhancement and extraaxial...
Findings and procedure details
EXTRAAXIAL ENHANCEMENT 1.Pachymeningeal or Dura-Arachnoid Enhancement
Pachymeningeal enhancement may be manifested up against the bone,
or it may involve the dural reflections of the falx cerebri,
and cavernous sinus.
After the administration of contrast material,
the normal dura mater shows only thin,
and discontinuous enhancement.
Extraaxial pachymeningeal enhancement may arise from various benign or malignant processes,
MR and CT images which are useful for assessment of the main patterns of CNS enhancement,
have an important role for the correct radiological diagnosis and treatment.
MRI manifestions correlate with survival of glioblastoma multiforme patients.
Cancer Biol Med.2012 Jun;9(2):120-3.
PubMed PMID:23691466; PubMed Central PMCID: PMC3643659. Smirniotopoulos JG,
Patterns of contrast enhancement in the brain and meninges.
PubMed PMID: 17374867. Voultsinou D,