[Extramedullary lymphosarcoma, erythroblastopenia and gastric adenocarcinoma. Apropos of a case]

The authors report the case of a patient with lymphosarcoma and erythroblastopenia who died following a surgical operation for gastric carcinoma. The erythroblastopenia, corrected by radiotherapy of the lymphosarcoma, reappeared during the relapse. The link between these two diseases seems undoubted. The later appearance of a gastric carcinoma suggested the predisposing role of the first neoplasm, and/or its treatment, through an immunological disorder.