Good news that the “something” is not tumor or cancerous, but not possible to know what this may be without further information. Lung scans are usually performed when a blood clot to the lung is suspected. You should ask for a copy of the official report. You should then call your doctor for his/her interpretation.
Hope this is nothing serious.
Good luck.
I had the same thing lung doc call them ticks small nodules ,i recently had another ct scan and they were gone. your doc should she again in 3 months for a scan to make sure they are gone.