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A Sensitive Approach to Managing Hypersensitivity Pneumonitis.

Prashant Ahlawat¹, Prateek Upadhyay², Prateek Madaan¹

¹General Medicine, Government Medical College & Hospital, Chandigarh, IND.

|November 7, 2022

Summary

Hypersensitivity pneumonitis (HP), an immune lung condition, can mimic COVID-19 symptoms. Early misdiagnosis is possible, but thorough history can reveal environmental triggers like pet dander for correct HP management.

Keywords:

anchoring bias extrinsic allergic alveolitis hypersensitivity pneumonitis interstitial lung disease interstitial pneumonitis pneumonitis

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Assessment of the Cytotoxic and Immunomodulatory Effects of Substances in Human Precision-cut Lung Slices

Assessment of the Cytotoxic and Immunomodulatory Effects of Substances in Human Precision-cut Lung Slices

Published on: May 9, 2018

Area of Science:

Immunology
Pulmonology
Radiology

Background:

Hypersensitivity pneumonitis (HP), or extrinsic allergic alveolitis, is an immune-mediated interstitial lung disease (ILD).
It arises from exposure to environmental antigens, triggering an inflammatory response in the lungs.
Diagnosis can be challenging due to overlapping symptoms with other respiratory illnesses.

Observation:

A 46-year-old female presented with fever and dyspnea, initially suspected to be COVID-19.
Clinical presentation and imaging findings were similar to COVID-19, leading to anchoring bias.
Real-time reverse transcription-polymerase chain reaction (RT-PCR) for COVID-19 was negative.

Findings:

Detailed patient history revealed exposure to cat hair as the causative antigen.
The diagnosis of hypersensitivity pneumonitis was confirmed.
Anchoring bias led to initial misdiagnosis despite negative COVID-19 testing.

Implications:

Highlights the importance of comprehensive patient history in diagnosing interstitial lung diseases.
Emphasizes the need to consider non-infectious causes, like HP, even during a pandemic.
Proper diagnosis of HP is crucial for targeted management and preventing chronic lung damage.