| lines of Zahn | Riblike markings seen by the naked eye on the surface of antemortem thrombi; they consist of a branching framework of platelets and fibrin separating the coagulated blood cells. Synonym: striae of Zahn. (05 Mar 2000) |
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| Looser's lines | Radiolucent bands in the cortex of a bone; usually indicates osteomalacia. Synonym: Looser's zones. (05 Mar 2000) |