Abstract

Two cases of giant lymph node hyperplasia occurring in extrathoracic regions are reported, one on the right side of the supra‐and infraclavicular fossa, pectoral muscle and axilla, and the other in the right groin. In both cases enlarged masses were removed several times having arisen from slow growing preexisting smaller masses. The histological features of all masses were identical, although removed at different times during the course of the disease. Both cases were characterized by marked proliferation of lymphoid follicles and capillaries, and infiltration of plasma cells. Fibrous thickening and hyalinization of the capillaries varied somewhat in severity from one case to the other. It is thought that the histogenesis of the lesion is related to chronic inflammation rather than to a hamartoma.

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