label: Nodular-centrilobular without tree-in-bud pattern on pulmonary HRCT
label_lc: nodular-centrilobular without tree-in-bud pattern on pulmonary hrct
description: "A nodular pattern on pulmonary high-resolution computed tomography which are anatomically located centrally within secondary pulmonary lobules. Centrilobular nodules may be dense (i.e., solid) and of homogeneous opacity or ground-glass opacity, and may range from a few millimeters to about 1 cm in size. Because of the similar size of secondary lobules, centrilobular nodules often appear to be evenly spaced. Centrilobular nodules are usually separated from the pleural surfaces, fissures, and interlobular septa by a distance of at least several millimeters. They may appear patchy or diffuse in different diseases."