Elementary Lesions Smooth muscle hyperplasia (I)CharacteristicsBundles of hyperplastic smooth musclesSynonyms: “myomatosis”, “muscular cirrhosis”Destruction of the normal alveolar structure by fibrosis “Myomatosis” Zoom BI GDS Side Navigation 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 About Interstitial Lung Diseases (ILD) Imaging Atlas Smooth muscle hyperplasia (I)