@klpdx, @reebobbin I have the exact same picture. Thumbnail sized “Scab”, slightly cupped form, with mucus.
I was coughing one up about every 3 weeks. Since having surgery last June to correct a deviated septum, I have great air flow, but am now consistently coughing up one of these scabs every 3 days.
Post surgery I brought this condition to my ENT/Surgeon, which he scoped me and can see the “Crusting”; He reviewed the MRI that I had prior to surgery – No evidence of any abnormality. November he ordered a CT Scan – No evidence of an abnormality/cancer. January he biopsied the nasopharynx where the scab grows – No evidence of cancer… but no conclusion either. I suggested a problem with the adenoids, but he doesn’t think so.
He suggested coming back in 3 months and see if the condition still exists. I’ll be going back late in March … looking forward to hearing if you have any further updates. I plan to share this information with him when I see him next month.