Wrigley Field Neighbors Race to Wrigley Cubs Scholars Fitness Trolley Diamond Project Cubs Caravan Charitable Giving Fundraising Efforts In-Kind Donations Neighborhood Protection Activities Players Pitch In
nodule - (mineralogy) a small rounded lump of mineral substance (usually harder than the surrounding rock or sediment) mineralogy - the branch of geology that studies minerals: their structure and properties and the ways of distinguishing them.
The nodule most commonly represents a benign tumor such as a granuloma or hamartoma, but in around 20% of cases it represents a malignant cancer, especially in older adults and smokers. Conversely, 10 to 20% of patients with lung cancer are diagnosed in this way.