rouleau /rou·leau/ (roo-lo´) pl. rouleaux´ [Fr.] an abnormal group of red blood cells adhering together like a roll of coins.
rouleaux
rouleau [roo-lo´] (Fr.)
rouleaux
[ro̅o̅lō′] sing. rouleau
Etymology: Fr, cylinder
an aggregation of red cells in a roll formation that may be caused by abnormal proteins, as in multiple myeloma or macroglobulinemia, but is most often a microscopic artifact. Compare hemagglutination. See also erythrocyte sedimentation rate.
rouleau [roo-lo´] (Fr.)
an abnormal group of red blood cells adhering together like a pile of coins.
Human red blood cells arranged in rouleaux. From Dorland's, 2000.
rouleau
pl. rouleaux [Fr.] a roll of red blood cells resembling a pile of coins.
rouleau formation
occurs when there is increased fibrinogen concentration or other changes in plasma proteins. It will disappear when blood is diluted with saline.
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