[Pubmed] Immuno-deficient features of thymoma-associated myasthenia gravis patients with hypogammaglobulinemia: A condit
Posté : 11 févr. 2026 12:00
J Neuroimmunol. 2026 Feb 5;414:578885. doi: 10.1016/j.jneuroim.2026.578885. Online ahead of print.
ABSTRACT
Good's syndrome (GS) is a rare immunodeficiency disorder associated with thymoma, characterized by hypogammaglobulinemia and recurrent infections; however, its clinical significance in thymoma-associated myasthenia gravis (TAMG) remains unclear. We retrospectively reviewed 30 patients with TAMG admitted to our center between January 2010 and March 2022. We defined GS-like immunodeficiency as serum IgG below the institutional cutoff of 861 mg/dL and a history of two or more infections requiring antimicrobial treatment; 11 patients (36.7%) met this definition. Compared with the remaining patients, the GS-like group had higher incidences of malignancy (45.5% vs. 5.3%, p = 0.016) and autoimmune diseases other than MG (36.4% vs. 5.3%, p = 0.047), lower peripheral lymphocyte counts (median 1100/μL vs. 2200/μL, p = 0.0051), and more frequent airflow obstruction defined by one second to forced vital capacity ratio of less than 70% (60.0% vs. 5.3%, p = 0.0026). Five deaths occurred in the GS-like group, and none in the other; median survival from the first antimicrobial-treated infection was 5.0 years. These findings imply that TAMG patients with GS-like immunodeficiency have a worse prognosis, underscoring the need for close monitoring and timely adjustments of MG management. (189 words).
PMID:41671609 | DOI:10.1016/j.jneuroim.2026.578885
Source: https://pubmed.ncbi.nlm.nih.gov/4167160 ... 22+67771e2