(Of course, that's just for routine mammograms; breast lumps always require a mammogram and/or other tests to start diagnosing whether it might be breast cancer .).
What is the sediment sometimes found in a bottle of wine? The sediment is termed as 'Crust'. It is generally potassium bitartate which adheres to the inside of the wine bottle.
a reddish crust or sediment in wine casks, consisting essentially of crude cream of tartar, and used in marking pure cream of tartar, tartaric acid, potassium carbonate, black flux, etc., and, in dyeing, as a mordant for woolen goods; -- called also argol, wine stone, etc. Tartar (noun).