What does punctate mean on CT?

1 : marked with minute spots or depressions a punctate leaf. 2 : characterized by dots or points punctate skin lesions.

What is a punctate lesion?

Background: Punctate white matter lesions (PWMLs) are small focal patches of increased signal intensity (SI) on T1- and decreased SI on T2-weighted magnetic resonance imaging (MRI). To date, there have been few reports of PWMLs in term born infants.

What is a punctate enhancing lesion?

Punctate enhancing foci in the region of radiation treatment are phenomena which may be manifestation of delayed treatment sequelae in HGG. Patients with these lesions are on average of younger age and have a particularly long survival. These lesions appeared several years following oncological treatment.

What is more dense fat or soft tissue?

Main Radiographic Densities Bone – This is the most dense of the four basic densities and appears white or “radiodense” as radiologists prefer to say. 2. Soft tissue – All fluids and soft tissues have the same density on a conventional radiograph. This density is slightly less than bone but slightly greater than fat.

What increases radiographic density?

Greater radiographic density may be produced by increasing (1) the total number of x-rays that reach the film, (2) the penetrating power of the x-rays, (3) the developing time, or (4) the temperature of the developer.

Can brain lesions disappear?

Disease processes that have been associated with disappearing brain lesions include epilepsy, where in which MRI abnor- malities can disappear once seizures have been medically controlled.

What does punctate on MRI mean?

The presence of a few hyperintense punctate foci in the cerebral white matter at MRI is a very common finding that can be regarded as insignificant in most of the cases. These bright dots, considered as normal, can be a manifestation of dilated perivascular spaces or small gliotic or lacunar ischemic foci.

What is the density of soft tissue?

Composition of TISSUE, SOFT (ICRP):

What is density on xray?

The density of the object being imaged determines how much of the x-ray beam will be absorbed. Dense structures absorb (attenuate) more of the x-ray beam than less dense structures. Thus, less of the beam passes through to hit the cassette and these structures appear white, termed ‘radioopaque’.

What does the term’punctate density’mean?

Answer Wiki. In an interpretation of a plain film X-ray or CT scan image, “punctate” means a tiny dot (literally “point-like”), and “density” means a bright spot. Arguably a preferable word to “density” is “opacity”. (A relatively radioopaque substance like bone or contrast dye will show up as white, and metal looks super bright white).

What does radiopaque mean on an X-ray?

radiopaque adjective Referring to a material or tissue that blocks passage of X-rays, and has a bone or near-bone density; radiopaque structures are white or nearly white on conventional X-rays. Segen’s Medical Dictionary. © 2012 Farlex, Inc.

Are there radiopaque densities in the right axilla?

Ultrasound evaluation of the right axilla revealed a normal sized lymph node with normal morphology, preservation of the fatty hilum, and thin symmetric cortex (Fig. C). Subtle echogenic densities were seen within the cortex of this lymph node.

Where are radiopaque densities in the lymph nodes?

Her screening mammogram demonstrated radiopaque densities in the right axillary lymph node region, only seen on the MLO view (Fig. A). No other suspicious calcifications, masses or areas of architectural distortion were identified in either breast.