Pitted erythrocytes in splenectomized subjects with congenital spherocytosis and in subjects splenectomized for other reasons.

Pitted erythrocytes counts are used in the quantitative assessment of functional hyposplenism and in the prediction of recurrence of splenic function in splenectomized subjects. Pitted erythrocyte counts were investigated in 16 patients splenectomized for hereditary spherocytosis, in 21 patients splenectomized for other reasons and in 23 healthy controls. In both groups of splenectomized patients the pitted erythrocyte counts were equally increased compared with the healthy controls.