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This particular variant of lung cancer is usually asymptomatic and is found after chest x-rays are taken for other reasons. [7] Hemoptysis is seen occasionally [7] and, in some cases, distal obstruction of bronchi by blood clots or mucus plugs produces cough and/or infection. [1] Lesions often enlarge and progress slowly, over many years. [8]
Blood-streaked sputum –an indicator of possible inflammation of the throat (larynx and/or trachea) or bronchi; lung cancer; other bleeding erosions, ulcers, or tumors of the lower airway. Pink sputum – it indicates sputum evenly mixed with blood from alveoli and/or small peripheral bronchi as is seen in potential pulmonary edema.
Blood-laced mucus from the sinus or nose area can sometimes be misidentified as symptomatic of hemoptysis (such secretions can be a sign of nasal or sinus cancer, but also a sinus infection). Extensive non-respiratory injury can also cause one to cough up blood. Cardiac causes like congestive heart failure and mitral stenosis should be ruled ...
Chest congestion is usually caused by excess mucus in the airways, says Meilan King Han, M.D., M.S., professor of medicine and chief of the Division of Pulmonary and Critical Care at the ...
Vocal abuse: Vocal abuse is the misuse or overuse of the voice in an unhealthy fashion such as clearing the throat, yelling, screaming, talking loudly, or singing incorrectly. Clearing the throat: Clearing the throat removes or loosens phlegm but the vocal cords hit together causing inflammation and therefore more phlegm. [3]
Adenocarcinoma of the lung is the most common type of lung cancer, and like other forms of lung cancer, it is characterized by distinct cellular and molecular features. [1] It is classified as one of several non-small cell lung cancers (NSCLC), to distinguish it from small cell lung cancer which has a different behavior and prognosis.
Lung cancer is the most diagnosed and deadliest cancer worldwide, with 2.2 million cases in 2020 resulting in 1.8 million deaths. [3] Lung cancer is rare in those younger than 40; the average age at diagnosis is 70 years, and the average age at death 72. [2] Incidence and outcomes vary widely across the world, depending on patterns of tobacco use.
Photograph of a squamous-cell carcinoma. The tumour is on the left, obstructing the bronchus (lung); beyond the tumour, the bronchus is inflamed and contains mucus. When associated with the lung, it is typically a centrally located large-cell cancer (non-small-cell lung cancer).
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