Journal of Clinical Medicine Review Evans’ Syndrome: From Diagnosis to Treatment Sylvain Audia 1,* , Natacha Grienay 1, Morgane Mounier 2, Marc Michel 3 and Bernard Bonnotte 1 1 Service de Médecine Interne et Immunologie Clinique, Centre de Référence Constitutif des Cytopénies Auto-Immunes de l’Adulte, Centre Hospitalo-Universitaire Dijon Bourgogne, Université de Bourgogne Franche Comté, 21000 Dijon, France;
[email protected] (N.G.);
[email protected] (B.B.) 2 Registre des Hémopathies Malignes de Côte d’Or, Centre Hospitalo-Universitaire Dijon Bourgogne, Université de Bourgogne Franche Comté, UMR 1231 Dijon, 21000 Dijon, France;
[email protected] 3 Service de Médecine Interne 1, Centre de Référence des Cytopénies Auto-Immunes de l’Adulte, Centre Hospitalo-Universitaire Henri Mondor, 94000 Créteil, France;
[email protected] * Correspondence:
[email protected]; Tel.: +333-80-29-34-32 Received: 11 October 2020; Accepted: 25 November 2020; Published: 27 November 2020 Abstract: Evans’ syndrome (ES) is defined as the concomitant or sequential association of warm auto-immune haemolytic anaemia (AIHA) with immune thrombocytopenia (ITP), and less frequently autoimmune neutropenia. ES is a rare situation that represents up to 7% of AIHA and around 2% of ITP. When AIHA and ITP occurred concomitantly, the diagnosis procedure must rule out differential diagnoses such as thrombotic microangiopathies, anaemia due to bleedings complicating ITP, vitamin deficiencies, myelodysplastic syndromes, paroxysmal nocturnal haemoglobinuria, or specific conditions like HELLP when occurring during pregnancy. As for isolated auto-immune cytopenia (AIC), the determination of the primary or secondary nature of ES is important. Indeed, the association of ES with other diseases such as haematological malignancies, systemic lupus erythematosus, infections, or primary immune deficiencies can interfere with its management or alter its prognosis.