Pneumonitis: meaning, definitions and examples
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pneumonitis
[ njuːˈməʊnɪtɪs ]
medical condition
Pneumonitis is the inflammation of lung tissue, which can be caused by a variety of irritants including allergens, certain medications, or infections. Unlike pneumonia, which is typically caused by infectious agents, pneumonitis can occur in response to non-infectious factors. Symptoms may include cough, difficulty breathing, and fever.
Synonyms
lung inflammation, pulmonary inflammation
Examples of usage
- She was diagnosed with pneumonitis after her exposure to chemicals.
- Symptoms of pneumonitis can resemble those of pneumonia.
- The doctor explained that pneumonitis can be triggered by both allergic and toxic reactions.
- He developed pneumonitis following radiation therapy to his chest.
Etymology
The term 'pneumonitis' is derived from the Greek word 'pneumon' meaning 'lung' and the suffix '-itis' which denotes inflammation. The use of the term began in the medical community in the early 20th century as a way to describe non-specific inflammatory responses in lung tissue, distinguishing it from pneumonia, which is typically linked to infections. Over time, the understanding of pneumonitis has evolved, encompassing a wide range of causes including hypersensitivity reactions, chemical irritants, and radiation exposure. The term has been important in both clinical and research settings as it aids in diagnosis and management of various lung diseases.