| malarial knobs | Rounded protrusions of a red blood cell infected with Plasmodium falciparum, responsible for the adhesion of infected red cells to one another and to the endothelium of the blood vessels containing these infected cells; results in capillary blockage responsible for much of the pathology of malignant tertian malaria. (05 Mar 2000) |
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| Engelmann's basal knobs | An obsolete eponym for blepharoplast. (05 Mar 2000) |