[Cytochemical characteristics of cells forming mast cell-lymphocyte rosettes]

Cytochemical studies were performed to reveal activities of phosphatase, chloracetate esterase, neutral alpha-naphtyl acetate esterase and non-specific esterase, and their results enabled us to ascertain the nature of cells forming mastolymphocyte rosettes. Rosette-forming cells were shown to be mast cells to which non-mature cells of T-lymphocyte origin are joined.