Microscopic Sediment CastsDefinition: Cylinder-like structures with parallel sides, formed from gelled muco/glyco protein (Tamm Horsfall protein). Urine CastsOverview of Urinary Cast FormationHyaline CastsCellular CastsGranular CastsWaxy CastsPseudo Casts Urinalysis and Body Fluids CRg Unit 2 Session 6