Takeshi Johkoh MD, PhD, Presenter: Research Consultant, Bayer AG Research Consultant, F. Hoffman-La Roche Ltd

Kazuya Ichikado MD, PhD, Abstract Co-Author: Nothing to Disclose

Kiminori Fujimoto MD, PhD, Abstract Co-Author: Nothing to Disclose

Tomonori Tanaka MD, Abstract Co-Author: Nothing to Disclose

Junya Fukuoka, Abstract Co-Author: Nothing to Disclose

Noriyuki Tomiyama MD, PhD, Abstract Co-Author: Nothing to Disclose

To acknowledge the essential anatomy in perilobular areas To learn precise pathologic backgrounds of perilobular abnormalities on CT  

Contents A.Anatomy Perilobuloar structures; interlobular septa, pleura, veins, and large bronchus and arteries Extralobular pulmonary arteries and bronchi are borders of lobules. Perilobular interstitium encloses lymphatic vessels. B.Perilobular abnormalities on CT; Perilymphatics Showing nodular border; Lymphangitic carcinomatosis, sarcoidosis, etc Showing smooth border Interstitial edema, etc Parenchymal Showing irregular border Usual interstitial pneumonia, organizing pneumonia,etc. Summary Although pulmonary lobules are the most important lung units, acknowledgement of lobular borders and perilobular abnormalities on CT has not still been enough. All normal structures other than centrilobular arteries and bronchioles on CT locate on lobular borders. Parenchymal diseases as good as interstitial ones cause perilobular abnormalities. We will let you understand perilobular structures and abnormalities using many impressive histological and CT images.  

http://abstract.rsna.org/uploads/2014/14015584/14015584_7mvs.pdf

Johkoh, T, Ichikado, K, Fujimoto, K, Tanaka, T, Fukuoka, J, Tomiyama, N, Perilobular Anatomy and Abnormalities on CT: Radiologists Should Memorize and Understand Them!.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14015584.html