  Pneumothorax
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Sigma KEE - Pneumothorax
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pneumothorax
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A pneumothorax is an abnormal collection of Air in the pleural space between the Lung and the Chest wall. Symptoms typically include sudden onset of sharp, one-sided chest Pain and shortness of Breath. In a minority of cases, a one-way Valve is formed by an area of damaged Tissue, and the amount of air in the space between chest wall and lungs increases; this is called a tension pneumothorax. This can cause a steadily worsening Oxygen shortage and low blood pressure. This leads to a type of shock called obstructive shock, which can be fatal unless reversed. Very rarely, both lungs may be affected by a pneumothorax. It is often called a 'collapsed lung', although that term may also refer to atelectasis.[from Wikipedia]
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| Instances | abstract | Properties or qualities as distinguished from any particular embodiment of the properties/qualities in a physical medium. Instances of Abstract can be said to exist in the same sense as mathematical objects such as sets and relations, but they cannot exist at a particular place and time without some physical encoding or embodiment. |
| | attribute | Qualities which we cannot or choose not to reify into subclasses of. |
| | biological attribute | Attributes that apply specifically to instances of OrganicObject (Organism or AnatomicalStructure). |
| | disease or syndrome | A BiologicalAttribute which qualifies something that alters or interferes with a normal process, state or activity of an Organism. It is usually characterized by the abnormal functioning of one or more of the host's systems, parts, or Organs. |
| | entity | The universal class of individuals. This is the root node of the ontology. |
| | internal attribute | Any Attribute of an Entity that is an internal property of the Entity, e.g. its shape, its color, its fragility, etc. |
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