Morphometrical ultrastructural evaluation of the cytoplasmic components in acute lymphoblastic leukaemias of T-cell type.

Immunological and ultrastructural morphometric evaluation of the cytoplasmic components of cells was performed in five cases of acute lymphoblastic leukaemia of the T-cell type. All cases were a uniform group as regards clinical and immunological evaluation. On the basis of the mean cell diameter, the volume fractions and true volumes of cell organelles, cells from various cases of acute lymphoblastic leukaemia were found to be no homogeneous group. The cases examined were most homogeneous as far as the volume fraction of the Golgi apparatus and the true volumes of the cell nucleus, mitochondria, lysosomes, smooth and rough endoplasmic reticulum and Golgi apparatus were concerned.