Abstract   

In livers of mice with Schistosoma mansoni and S. rnargrebowiei infections, megakaryocytes were found in the hepatic sinusoids, around granulonias and infiltration of the cells after 35, 42 and 49 days post infections (p.i.). Some of these cells were found in S. mansoni, few in S. margrebowiei and hydrocortisone treated space of the lung infected with S. mansoni after 10 days p.i.