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Lung India Official publication of Indian Chest Society  
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ORIGINAL ARTICLE
Year : 2021  |  Volume : 38  |  Issue : 2  |  Page : 144-148

Clinico-etiological characteristics of organizing pneumonia: A retrospective study


1 Department of Pulmonary, Critical Care and Sleep Medicine, Army Institute of Cardio Thoracic Sciences (AI CTS), Pune, Maharashtra, India
2 Medical Division, Command Hospital (EC), Kolkata, West Bengal, India
3 Department of Radiology, Army Institute of CardioThoracic Sciences (AI CTS), Pune, Maharashtra, India
4 Department of Medicine, Command Hospital (SC), Pune, Maharashtra, India
5 Department of Pathology, Armed Forces Medical College, Pune, Maharashtra, India
6 Department of Anesthesia, AFMC, Pune, Maharashtra, India

Correspondence Address:
Dr. Saikat Bhattacharjee
Department of Radiology, Army Institute of CardioThoracic Sciences (AI CTS), Golibar Maidan, Pune - 411 040, Maharashtra
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/lungindia.lungindia_105_20

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Introduction: Organizing pneumonia (OP) is an idiopathic interstitial pneumonia characterized radiologically by the patchy peripheral areas of ground-glass opacities and consolidation. It is commonly associated with a variety of conditions such as connective tissue diseases (CTD), drugs, infections, malignancy, radiation exposure, post-transplant, and other interstitial pneumonia. There are no specific clinical manifestations unless there is an underlying etiology. We present a series of such cases. Aims and Objectives: The aim of the study was to identify the clinical characteristics and etiological spectrum of patients manifesting radiologically with OP pattern. Materials and Methods: This was a retrospective analysis of clinico-radiological profile and etiological diagnosis of 23 patients, who had a radiological diagnosis of OP during the period of January 2017–September 2019. Results: Our patients presented with nonspecific symptoms of cough, fever, breathlessness, and occasionally with hemoptysis. The various etiologies identified were CTD (n = 4), infection (n = 2), drugs (n = 4), radiation (n = 1), chronic aspiration syndrome (n = 1), malignancy (n = 2), hypersensitivity pneumonitis (n = 1), and chronic heart failure (n = 2), and in majority (n = 7), no underlying etiology was evident and were labeled as cryptogenic organizing pneumonia. Conclusion: OP is an underdiagnosed entity and is associated with numerous diseases varying from pulmonary tuberculosis to malignancy. Identification of the underlying disease process is of paramount importance as it enables the treating physician to implement necessary therapeutic interventions.


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