这个词是什么意思？
A spectrum of systemic autoimmune diseases in which IMMUNOGLOBULIN G4 plays a pathophysiologic role. It can affect multiple organs in highly variable presentations, characterized by inflammatory lesions composed of IgG4-positive PLASMA CELLS, further infiltrated by T helper cells (T-LYMPHOCYTES, HELPER-INDUCER) when linked to progressive FIBROSIS and eventual organ damage.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D000077733 · MeSH 2026。
Courtesy of the U.S. National Library of Medicine. Annual snapshot; later updates may not be reflected. NLM does not endorse this service.