Erythrocytic ecdysis in smears of EDTA venous blood in eight patients with sickle cell anemia.
The light-microscope finding of red cell membrane fragments in the form of long filamentous processes and myelin bodies in the blood smears of a patient with sickle cell anemia has recently been described. This phenomenon has been termed erythrocytic ecdysis. We examined the blood smears of all sickle cell anemia patients admitted to the Cook County Hospital and those attending the hemoglobinopathy clinic between October 1979 and December 1981. Nine instances of erythrocytic ecdysis were uncovered. Associated clinical conditions included congestive heart failure, acute viral syndrome, pneumonia, and metastatic malignancy. Transient ecdysis associated with congestive heart failure was noted for one patient during two separate admissions one year apart. Ecdysis is a transient form of erythrocytic fragmentation occurring in sickle cell anemia. Its pathogenesis is unknown. The role of regional circulatory stasis and hypoxia in the induction of erythrocyte membrane damage in sickle cell anemia needs investigation.[1]References
- Erythrocytic ecdysis in smears of EDTA venous blood in eight patients with sickle cell anemia. Rao, K.R., Patel, A.R. Blood Cells (1987) [Pubmed]
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