1. Nodulii-definitie d.p.d.v radiologic -termen descriptiv pt opacitatilepulmonare radiologice de aspectrotund,poligonal sauneregulat,cu dimensiuni demaxim 5 cm.

2. Macronodulii=nodulii cudimensiuni intre 1-5 cm 3. Clasificare: -Macronoduli(1-5 cm) -Micronuduli(