What is Atelectasis?

Atelectasis (from , "incomplete" + ἔκτασις, "extension") is defined as the collapse or closure of the lung resulting in reduced or absent gas exchange. It may affect part or all of one lung. It is a condition where the alveoli are deflated, as distinct from pulmonary consolidation.

It is a very common finding in chest x-rays and other radiological studies. It may be caused by normal exhalation or by several medical conditions. Although frequently described as a collapse of lung tissue, atelectasis is not synonymous with a pneumothorax, which is a more specific condition that features atelectasis. Acute atelectasis may occur as a post-operative complication or as a result of surfactant deficiency. In premature neonates, this leads to infant respiratory distress syndrome.

Questions and answers on "Atelectasis"

im 33 year old, 5 4 height 64lbs, i have a high blood sugar and my previous check up i had a infection in lung due to near pneumonia . doc what is...

doctor1 MD

Hi welcome to HealthcareMagic

Pneumonia means,exudation of fluid in the alveolar space due to inflammation caused due to infection...The infection...

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what does Minor linear atelectasis/fibrosis posterobasal segment right lower lobe...

doctor1 MD


I will try to go through what you have written for you, feel free to ask any additional questions if anything remains unclear.


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im 47 y/o white female ,no previous medical problems just had xray of lungs after MVA with this findings coarsened bronchovascular markings noted...

doctor1 MD

Thanks for query,
Your case is to be evaluated as soon as possible.
You have pathology in both the organs,lungs ans thyroid gland.
There may...

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