Elementary Lesions Smooth muscle hyperplasia (II) Characteristics Hyperplastic smooth muscle bundles within subpleural fibrosis Smooth muscle hyperplasia Zoom In This Section In This Section Patchwork pattern Architectural distortion Honeycomb change Bronchial epithelial metaplasia Fibrosis Smooth muscle hyperplasia (I) Smooth muscle hyperplasia (II) Vascular changes Fibroblast focus Home Vores lægemidler Education Imaging Atlas Smooth muscle hyperplasia (II)