Masanori Akira MD, Presenter: Nothing to Disclose

Sayoko Tokura, Abstract Co-Author: Nothing to Disclose

Tomohisa Okuma MD, PhD, Abstract Co-Author: Nothing to Disclose

Narufumi Suganuma MD, Abstract Co-Author: Nothing to Disclose

1. To describe CT findings, pathologic findings, and long-term follow-up CT findings in several of chronic interstitial lung diseases 2. To learn honecombing and various changes other than honeycombing on long-term follow-up CT scans in chronic interstitial lung diseases

TABLE OF CONTENTS: 1. Idiopathic plmonary fibrosis (IPF) 2. Non-specific interstitial pneumonia (NSIP) 3. Desquamative interstitial pneumonia (DIP) 4. Combined pulmonary fibrosis and emphysema (CPFE) 5. Pleuroparenchymal fibroelastosis (PPFE) 6. Chronic hypersensitivity pneumonitis 7. Sarcoidosis 8. Pulmonary Langerhans' cell histiocytosis OUTLINE: The previous concept of end-stage lung disease suggested a final common pathway for most ILD. The end-stage disease is characterized by the presence of extensive honeycombing, however, sequential CT scans in chronic ILD show various changes other than honeycombing. In long-standing fibrotic NSIP, a small focus of honeycombing is found and mainly consists of dilatation of bronchioles rather than dilatation of peripheral air spaces. In DIP and pulmonary Langerhans’ cell histiocytosis, ground-glass opacity and nodular opacity evolve into emphysema-like lesions on CT. In CPFE and sarcoidosis, honeycomb cysts tend to be larger than in UIP. 

http://abstract.rsna.org/uploads/2014/14000699/14000699_p9mp.pdf

Akira, M, Tokura, S, Okuma, T, Suganuma, N, Long-term Follow-up CT Findings in Chronic Interstitial Lung Diseases.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14000699.html