The occurrence of crystals in the cytoplasm of lymphatic cells in a case of lymphoreticular malignancy—probably lymphocytic leukemia—is reported. Histochemistry revealed the protein nature of these crystals. It appeared that the protein was water-soluble, with no admixture of polysaccharides. Electron microscopy of the crystals showed a fine structure of regularly arranged thin lines with a spacing of 100 Å. The crystals were surrounded by membranes of the endoplasmic reticulum.

This content is only available as a PDF.
© 1962 by American Society of Hematology, Inc.
1962
Sign in via your Institution