Immunoglobulin in Reed-Sternberg and Hodgkin cells.

In eight cases of Hodgkin's disease of various types, Ig was found within approximately one-third of the RS and HD cells. The Ig within each RS and HD cell consisted of gamma heavy chains and both k and lambda light chains. The most probable origin of the Ig would appear to be uptake of IgG-containing immune complexes. The presence of both types of light chain in individual RS and HD cells is inconsistent with an origin of these types of cell from B lymphocytes.