[Chronic extemporal aregenerative anemia as a possible transition form between primary global bone-marrow aplasia and chronic idiopathic erythroblastopenia not associated with thymoma. Clinical contribution].

After briefly recalling present-day clinical and experimental knowledge regarding chronic idiopathic erythroblastopenia, a case of chronic anaemia with definite aregenerative character is reported. The case was followed up for years; it was refractory to ordinary therapy, slightly and temporarily sensitive to immunosuppression, and nosographically classifiable as a transition form between primary global marrow aplasia and pure chronic erythroblastopenia not associated with thymoma.