Define dissection of the aorta, Biology

Assignment Help:

Q. Define Dissection of the Aorta ?

The CXR may be abnormal in upto 80 per cent of patients. The abnormalities include:

i) Widened mediastinum: This is defined as a mediastinal width of more than 8 cm on the AP CXR. A tortuous aorta may be difficult to distinguish from a widened mediastinum. If in doubt, a good PA view is recommended.

ii) Abnormal aortic knob: Loss of definition or a focal widening of the mediastinal contour in the region of the aortic knuckle may be seen.

iii) Ring sign: This describes the displacement of the aorta, > 5 mm past the calcified aortic intima. The presence of this as a new finding on CXR, is considered a very specific radiographic sign.

iv) Left apical cap: This is a result of the pleural effusion that often accompanies an acute dissection.

v) Tracheal deviation and depression of left main stem bronchus or displacement of an NG tube.

Several studies have concluded that it is a combination of several of these findings that lead to suspicion of dissection.


Related Discussions:- Define dissection of the aorta

How lead to over expression of the protein, You have discovered that a sing...

You have discovered that a single protein in two different cell lines is significantly over expressed in one of them. The proteins are identical, yet Northern blot analysis has dem

Gradient hypohesis, please give me the expansion for ''gradient hypothesis'...

please give me the expansion for ''gradient hypothesis'' and the two types of gradient hypothesis in deelopment of animals in detailed manner

Determine about the nervous tissues, Determine about the nervous tissues ...

Determine about the nervous tissues The nervous tissues throughout the body, including the visual nervous system, are continuously active. Electrical reactions can only be indu

Chlorophyll and haemoglobin, dialouge on cartoon between chlorophyll and ha...

dialouge on cartoon between chlorophyll and haemoglobin

Gills and booklungs, Give detailed structure of gills,book lungs

Give detailed structure of gills,book lungs

How age affects the bmr, How Age affects the BMR? The BMR per unit weig...

How Age affects the BMR? The BMR per unit weight also varies with age, being higher in children and lower in the elderly. The loss of FFM with ageing is associated with a decli

Define transport proteins in plasma, Define Transport Proteins in Plasma? ...

Define Transport Proteins in Plasma? Transport proteins, embedded in lipid membranes, make easy the import of nutrients into cells or the release of toxic products into the sur

Causes of mitral regurgitation, Q. Causes of Mitral Regurgitation? Mitr...

Q. Causes of Mitral Regurgitation? Mitral regurgitation is the most common valvular abnormality seen in clinical practice. Different disease processes leading to mitral regurgi

Define common complications with spinal trauma patients, Define Common comp...

Define Common complications with spinal trauma patients? Common complications with spinal trauma patients include pressure sores or decubitus ulcers, hypercalciuria and renal s

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd