Since day one with the first CT scan my wife has had three nodules or spots on her lungs that at first they thought might be mets, along with sizable mets to her Liver, Spleen and of course her primary. The lung things have not changed in any scans in almost three years, so the oncologist now doesn't believe these to be mets. So it's probably nothing in her case. All you can do is just keep an eye on them and wait and see.
Presently she is on her third chemo cocktail. She is in a trial using Irinotecan, Erbitux, and either Avastin or placebo. First was FOLFOX plus Avastin which pretty much killed off her Liver mets as they are all calcified, and the one on her spleen they can no longer see. But starting at about August of last year her CEA started to rise. Shehad been doing maintenence 5FU, and Avastin once every three weeks. CT scan in December showed net mets in her abdomen one pressing her ureter from her kidney to her blader so they put in a stint, and switched her to FolFiri, plus Avastin but that one didn't seem to stop the CEA rise, so now she is on this trial with Erbitux, which seems to be working as after 3 cycles her CEA is dropping again.
But still no change in those small lung things!
DW 53 dx Jun 2013
CT mets Liver Spleen lung. IVb CEA~110
Jul 2013 Sig Resct
8/13 FolFox,Avastin 12Tx mild sfx, Ongoing 5-FU Avastin every 3 wks.
CEA: good marker
7/7/14 CT Can't see the spleen Mets.
8/16/15 CEA Up, CT new abdominal mets. Iri, 5-FU, Avastin every 2 wks.
1/16 Iri, Erbitux and likely Avastin (Trial) CEA going >.
1/17 CEA up again dropped from Trial, Mets growth 4-6 mm in abdomen
5/2/17 Failed second trial, Hospitalized 15 days 5/11. Home Hospice 5/26, at peace 6/4/2017