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Updated: Jun 26, 2026

Use of Electromagnetic Navigational Transthoracic Needle Aspiration (E-TTNA) for Sampling of Lung Nodules
Published on: May 23, 2015
An unusual radiologic pattern of cryptogenic organizing pneumonia: diffuse pulmonary nodules in a leukemia patient
Kai Hsiung Ko1, Hsian He Hsu, Woei Yau Kao
1Department of Radiology, Tri-Service General Hospital, National Defense Medical Center, Taiwan.
Abstract:
The radiological appearance of diffuse discrete pulmonary nodules associated with cryptogenic organizing pneumonia (COP) has been rarely described. We describe a case of COP in 49-year-old woman with acute myeloid leukemia who developed diffuse pulmonary nodules during the second course of induction chemotherapy. The clinical status of the patient and imaging findings suggested the presence of a pulmonary metastasis or infectious disease. A video-assisted thoracoscopic lung biopsy resulted in the unexpected diagnosis of COP as an isolated entity. Steroid therapy led to dramatic improvement of the clinical symptoms and the pulmonary lesions.
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