rouleaux formation

rou·leaux for·ma·tion

the arrangement of red blood cells in fluid blood (or in diluted suspensions) with their biconcave surfaces in apposition, thereby forming groups that resemble stacks of coins.
Synonym(s): pseudoagglutination (2)
[Fr. pl. of rouleau, a roll]

rou·leaux for·ma·tion

(rū-lō' fōr-mā'shŭn)
The arrangement of red blood cells in fluid blood (or in diluted suspensions) with their biconcave surfaces in apposition, thereby forming groups that resemble stacks of coins.
[Fr. pl. of rouleau, a roll]

rouleaux formation

erythrocytes in 'stack' formation (i.e. as a stack of coins); predisposes to poor capillary perfusion and ischaemia of subserved tissues
References in periodicals archive ?
Rouleaux formation occurs when red blood cells stack upon each other as a result of elevated serum globulins.
Complete blood cell count showed a macrocytic anemia with a hemoglobin concentration of 97 g/L, rouleaux formation, and circulating plasmacytes.
The patient's blood smear showed obvious erythrocyte rouleaux formation in association with 6% circulating plasma cells.