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Case Reports in Pulmonology
Volume 2012, Article ID 214601, 4 pages
http://dx.doi.org/10.1155/2012/214601
Case Report

A Case of Follicular Bronchiolitis as the Histological Counterpart to Nodular Opacities in Bronchiectatic Mycobacterium avium Complex Disease

1Division of Respiratory Medicine, National Hospital Organization Omuta Hospital, 1044-1 Oaza Tachibana, Omuta City 837-0911, Japan
2Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, 1-1-1 zokumyouin, Chikucino City 818-8502, Japan
3Division of Radiology, National Hospital Organization Omuta Hospital, 1044-1 Oaza Tachibana, Omuta City 837-0911, Japan

Received 23 August 2012; Accepted 30 September 2012

Academic Editors: L. Borderías, H. Kobayashi, and D. T. Merrick

Copyright © 2012 Kentaro Wakamatsu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Here we report the case of a 72-year-old woman with nodular bronchiectatic Mycobacterium avium complex (MAC) disease. Chest computed tomography on admission revealed multiple micronodular and branching opacities in both lobes with segmental distribution; bronchiectasis and bronchial wall thickening were observed in the middle lobe and lingula. The patient consented to and underwent thoracoscopic lung biopsy; epithelioid granulomas were occasionally observed, but follicular bronchiolitis was widespread. While bronchial lesions from nontuberculous mycobacterial infection generally present as epitheliod granulomas, the present case suggests that follicular bronchiolitis can also be a histological counterpart to nodular opacities in nodular bronchiectatic MAC disease.