Résumé

Introduction: The association between adult Still's disease (MSA) and lymphoma is rare and a source of diagnostic difficulties. Clinical case: A 31-year-old patient with diffuse large B-cell lymphoma in remission, who developed a confirmed ASM 16 months later (Yamaguchi criteria, glycosylated ferritin < 20%). The course was favourable on corticosteroid therapy and methotrexate with durable remission. Conclusion: This case illustrates an unusual sequence (lymphoma → MSA) and underlines the importance of excluding a haematological relapse in the presence of a febrile picture with arthritis and rash.

Mot-clés :

Still's Disease In Adults; Lymphoma; Glycosylated Ferritin; Yamaguchi Criteria; Methotrexate; Chad