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In emphysema the spaces resulting from alveolar wall destruction have thin, delicate walls without intervening fibrosis and resemble the appearance of a spider web. In honeycomb fibrosis the abnormal spaces resulting both from alveolar wall destruction and dilatation of small airways are separated by broad bands of fibrous tissue thus ...
Most commonly emphysema refers to the permanent enlargement of air spaces in the lungs, [5] [6] and is also known as pulmonary emphysema. Emphysema is a lower respiratory tract disease, [ 7 ] characterised by enlarged air-filled spaces in the lungs , that can vary in size and may be very large.
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Barrel chest due to chronic bronchitis and emphysema.. Barrel chest generally refers to a broad, deep chest found on a patient (or other person). A barrel chested person will usually have a naturally large ribcage, very round (i.e., vertically cylindrical) torso, large lung capacity, and can potentially have great upper body strength.
Subcutaneous emphysema can be caused by medical procedures and medical conditions that cause the pressure in the alveoli of the lung to be higher than that in the tissues outside of them. [4] Its most common causes are pneumothorax or a chest tube that has become occluded by a blood clot or fibrinous material.
3D still image of constricted airways as in bronchial asthma Lung tissue affected by emphysema using H&E stain. Asthma, bronchiectasis, and chronic obstructive pulmonary disease (COPD) that includes chronic bronchitis, and emphysema, are all obstructive lung diseases characterised by airway obstruction. This limits the amount of air that is ...
In the lungs, emphysema involves enlargement of the distal airspaces, [2] and is a major feature of chronic obstructive pulmonary disease (COPD). Other pneumatoses in the lungs are focal (localized) blebs and bullae, pulmonary cysts and cavities. Pneumoperitoneum (or peritoneal emphysema) is air or gas in the abdominal cavity, and is most ...
Pulmonary interstitial emphysema (PIE) is a collection of air outside of the normal air space of the pulmonary alveoli, found instead inside the connective tissue of the peribronchovascular sheaths, interlobular septa, and visceral pleura. (This supportive tissue is called the pulmonary interstitium.)