| sponge tent | A sponge is impregnated with thin mucilage of acacia, wrapped with twine to the desired shape, and then dried; used to dilate sinuses, the os uteri, etc. By absorbing moisture after insertion. Synonym: sponge tent. (05 Mar 2000) |
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| kidney, sponge | Cystic disease of the medullary portion of the renal pyramids; asymptomatic unless complicated by infection, calculi, or obstruction; should be distinguished from congenital polycystic disease of the kidneys. (12 Dec 1998) |