Good Syndrome: An Adult-Onset Immunodeficiency Remarkable for Its High Incidence of Invasive Infections and Autoimmune Complications
Open Access
- 31 March 2015
- journal article
- Published by Oxford University Press (OUP) in Clinical Infectious Diseases
- Vol. 61 (2), e13-e19
- https://doi.org/10.1093/cid/civ269
Abstract
Background. Good syndrome (GS) is a rare condition in which thymoma is associated with hypogammaglobulinemia. It is characterized by increased susceptibility to bacterial, viral, and fungal infections, as well as autoimmunity. Most patients have no circulating B cells. Methods. The French DEFicit Immunitaire de l'adulte cohort provides detailed clinical and immunological descriptions of 690 adults with primary hypogammaglobulinemia. Comparisons between patients with GS, those with common variable immunodeficiency (CVID), and those with B− CVID (circulating B cells Results. Twenty-one patients had GS and 440 had CVID, including 39 B− CVID, with a median age at diagnosis of 60, 35, and 34 years, respectively. Invasive bacterial infections were observed in 90.5% of GS, 54% of CVID, and 72% of B− CVID patients. Eight patients with GS had opportunistic infections, despite normal peripheral CD4+ T-cell numbers. Autoimmune complications were demonstrated in 76% of GS, 29% of CVID, and 26% of B− CVID patients. The spectrum of autoimmunity in GS was uncommon, consisting of oral lichen planus, graft-vs-host disease–like colitis, and pure red cell aplasia, different from the pattern observed in CVID patients. GS patients did not display lymphoid hyperplasia nor lymphoma, unlike those with CVID or B− CVID. Conclusions. GS differs notably from CVID and B− CVID: very late onset, no familial cases, and absence of lymphoid hyperplasia. The key observation is the very high frequency of invasive bacterial infections in GS, an issue that physicians should be aware of.Keywords
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