Evidence Hub

Cryptogenic Organizing Pneumonia: A Case Report

Mohammed Sameer Kundale, P. D., Nirantha S. P., Sruthy Vijayan, Shashidhar S Vananjakar

Journal of Association of Physicians of India, 2025

Abstract

Cryptogenic organizing pneumonia (COP) is an idiopathic interstitial lung disease affecting the distal airways, characterized by the development of granulation tissue that obstructs the bronchioles and alveoli, leading to respiratory failure. This case report describes a 63-year-old female patient with a history of diabetes, hypertension, and hypothyroidism who presented with persistent productive cough and dyspnea, initially treated as community-acquired pneumonia. Despite empirical antibiotic therapy, the patient's symptoms persisted. Further investigation, including high-resolution CT (HRCT) scans and a CT-guided lung biopsy, revealed fibrotic exudates, interstitial fibrosis with inflammatory infiltrates, and epithelioid granuloma. A diagnosis of COP was made after multidisciplinary discussion, and corticosteroid therapy was initiated, leading to significant clinical improvement and resolution on repeat imaging. This case highlights the importance of considering COP in patients with nonresolving pneumonia and underlines the efficacy of corticosteroids in its management. It also emphasizes the need for a multidisciplinary approach combining clinical, radiological, and histological assessments to reach a definitive diagnosis. Early recognition and appropriate treatment are crucial in preventing complications such as fibrosis and respiratory failure.

How strong is the evidence?

Evidence Hub reads this as a case report, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health.

How the five levels of evidence work. The level is assigned automatically from the abstract and can be wrong, so check the paper.

Read the paper

Related studies

Go deeper in Evidence Hub

Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.

Open this study Sign up free