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A rare and invariably fatal condition, character- ized by progressive erythropenia with or without depression of the circulating granulocytes and platelets despite a highly reactive marrow, has previously been described in adults. The liver, spleen and lymph nodes are enlarged, general intoxication is profound, and there may be a relapsing fever. The course seldom exceeds a few months, and terminally jaundice and purpura may appear. Such cases have been recorded by Scott and Robb-Smith (1939),
Farquhar et al. (Mon,) studied this question.