Lungs and Airways

Sudden Severe Breathlessness Causes and Emergency Signs

Sudden and severe breathlessness is extremely distressing if it arises for no known reason and persists for even a few minutes. Breathlessness includes shortness of breath, difficulty breathing, labored breathing or discomfort when breathing that restricts the breathing rate and depth. While an acute shortness of breath is >> Read More ...

Consolidation of Lung – Signs, Symptoms and Causes

What is lung consolidation? Consolidation of the lung is simply a “solidification” of the lung tissue due to accumulation of solid and liquid material in the air spaces that would have normally been filled by gas. It is also known as pulmonary consolidation. The most common cause of consolidation is pneumonia >> Read More ...

Pulmonary Nodule – Causes of Nodules in the Lung

Lung nodules or pulmonary nodules may be routinely discovered on a chest x-ray or thoracic CT scan. A patient may be asymptomatic or sought medical attention for some other condition when a nodule is identified on follow-up imaging studies. Screening may also be done for immigration purposes, where a person from a high >> Read More ...

What is a Lung Nodule? Types of Nodules, Cancer Characteristics

What is a lung nodule? A lung nodule, also known as a pulmonary nodule, is a a round or opaque opaque mass in the lung that is seen in a chest X-ray or thoracic CT scan. It is more accurately defined as a discrete nodule that is equal to or less than 3 centimeters in diameter. Larger opacities are known as growths or >> Read More ...

Lung Infection Symptoms

An infection of the lung may be due to a number of bacterial and viral causes, with fungal infections being less common  and more frequently seen in immunocompromised patients. Lungs infections may be acute, lasting less than 3 weeks or chronic, persisting for more than 3 weeks. Most lung infections start as a respiratory >> Read More ...

Sputum Color Causes and Meaning

The color of sputum or phlegm, which is the mucus and sometimes pus discharge expectorated from the respiratory tract, is often an indication of the type of respiratory disease that gives rise to sputum production. By examining the type of sputum and noting the color as well as the presenting signs and symptoms, a >> Read More ...

Types of Sputum | Thick, Sticky, Pus, Frothy, Blood-Stained

What is sputum? Sputum or phlegm is the discharge that is expectorated from the respiratory system. It is a combination of mucus produced by the airways combined with saliva from the mouth. It also contains other components including microorganisms, whole cells (like the immune cells), debris and dust even if there is no >> Read More ...

Dry Cough Causes of a Persistent, Constant Non-Productive Cough

A dry cough is a cough where no mucus or very little mucus is expectorated (coughed up). This is known as a non-productive cough. Most conditions that may cause a cough will present as a dry cough in the early stages. As the disease progresses, the productive nature of the cough will become evident. Coughing is a result of >> Read More ...

Swallowing Problems Symptoms and Causes of Trouble Swallowing

Swallowing is a process of moving food and drink from the mouth to the stomach. It is composed of three phases that starts in the throat and extends down to the esophagus. Swallowing is partly voluntary but mainly an involuntary reflex that comprises a well coordinated sequence of events to complete its function. The >> Read More ...
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