Agnogenic lymphoid metaplasia of the spleen

A condition of lymphoid metaplasia of the spleen, accompanied by symptoms of hypersplenism arising from an unknown stimulus, is reported. As far as is known, this is the first reported case. The value of splenic and bone marrow puncture in diagnosing splenomegalies of obscure nature is pointed outAnother case was observed as early as the Japanese occupation. But as the chart was destroyed by fire, all reports were lost.(Summary)