hypodense

Appears darker radiologically

Hypodense describes tissue or material that appears darker on medical imaging—particularly CT scans—because it absorbs less radiation than surrounding structures.

A hypodense lesion in the liver, for instance, shows up darker than normal liver tissue: The scan revealed a hypodense mass in the right kidney.

The opposite is hyperdense.

imaging

attenuation

Gradual intensity reduction

CTTomographic imaging method
scanBrief visual sweep
MRIMagnetic body imaging

ultrasound · angiography · radiograph · contrast · hyperdense · radiolucent · anechoic · heterogeneous · homogeneous · enhancement

pathology

lesion

Area of pathological change

cystFluid-filled tissue sac
infarctDead tissue from blocked artery
ischemiaInsufficient tissue blood supply

edema · necrosis · abscess · tumor · hemorrhage · demyelination · lipoma · meningioma · mass · infiltrate

neuroimaging

brain

Seat of cognition

ventricleHollow organ chamber
white matterPale neural fiber tissue
grey matterNeuronal cell body tissue

basal ganglia · thalamus · cerebellum · brainstem · meninges · hydrocephalus · atrophy · sulci · parenchyma · watershed

density

dark

Absence of light

fluidSubstance that flows
fatAdipose tissue
airGaseous envelope surrounding Earth

adipose · cystic · liquefaction

Opposites

radiological density

hypodensehyperdense

Abnormally high density

high-density · dense · bright · calcified · sclerotic

Family

hypo, hypotension, hypoglycemia, hypothermia, hypodermic, hypothesis, dense, denser, densest

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