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Published on: October 29, 2014
Drug-induced pulmonary disease
1Department of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN 55905, USA.
Abstract:
In any febrile patient with an unexplained chest radiographic abnormality who is on medication, the possibility that the observed abnormality is drug-induced must be kept in mind. This is a significant problem in the immunocompromised host receiving chemotherapeutic agents because these agents are almost always associated with a fever, although the fever may not be daily and is usually not associated with sweats or shaking chills. The infiltrate initially can be quite focal and then unilateral, exhibiting diffuse lung disease before becoming bilateral. Thus, in its early stages, it mimics an infectious process. Unfortunately there is no diagnostic test to rule in drug-induced lung disease because it really is a condition of exclusion. Lung biopsy may be required to exclude other causes. It is also important to remember that drugs may be a factor in the immunocompetent patient who is taking medication and has a fever. It is important for the clinician to be aware of which drugs can do this.
Insights
Drug-induced lung disease can mimic infections in febrile patients with unexplained chest X-rays. Diagnosis requires excluding other causes, as no specific test exists for this medication side effect.
Area of Science:
- Pulmonology
- Pharmacology
- Oncology
Background:
- Febrile patients with unexplained chest radiographic abnormalities on medication may have drug-induced lung disease.
- This is a particular concern in immunocompromised patients receiving chemotherapy, who often experience fever.
- Early-stage drug-induced lung infiltrates can mimic infectious processes.
Purpose of the Study:
- To highlight the importance of considering drug-induced lung disease in febrile patients with unexplained radiographic findings.
- To emphasize the diagnostic challenges and the need for exclusion in identifying drug-induced lung disease.
- To remind clinicians of the potential for medications to cause lung abnormalities in both immunocompromised and immunocompetent individuals.
Main Methods:
- This is a review and discussion of clinical presentation and diagnostic considerations.
- The abstract emphasizes clinical awareness and the process of exclusion for diagnosis.
- Lung biopsy may be necessary to rule out other conditions.
Main Results:
- Drug-induced lung disease presents with fever and unexplained chest radiographic abnormalities.
- The condition can progress from focal to diffuse lung disease, mimicking infection.
- There is no specific diagnostic test; it is a diagnosis of exclusion.
Conclusions:
- Clinicians must consider drug-induced lung disease in febrile patients with unexplained radiographic abnormalities, especially those on chemotherapy.
- Exclusion of other causes, potentially including lung biopsy, is crucial for diagnosis.
- Awareness of medications that can cause lung toxicity is essential for patient management.
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