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[[File:CT of a hamartoma.png|thumb|Calcifications and popcorn-like appearance, conferring a diagnosis of hamartoma.<ref name=Snoeckx2017/>]]
*In case of '''calcifications''', a popcorn-like appearance indicates a hamartoma, which is benign.<ref name="NEJM-cp">{{cite journal |author=Ost D, Fein AM, Feinsilver SH |title=Clinical practice. The solitary pulmonary nodule |journal=N. Engl. J. Med. |volume=348 |issue=25 |pages=2535–42 |date=June 2003 |pmid=12815140 |doi=10.1056/NEJMcp012290 |last2=Fein |last3=Feinsilver }}</ref>
*In case of '''subsolid''' nodules, being part solid has a higher risk of cancer than being purely [[ground glass opacity]].
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