thirty-four cases of eosinophilic granulomas , 18 cases of diffuse histiocytosis-x , 2 cases of letterer-siwe-like syndrome with immunodeficiency , 4 cases of malignant histiocytosis and virus associated hemophagocytic syndrome were studied .
C0014461
eosinophilic granulomas
C0019621
histiocytosis-x