Related Experiment Video
Updated: Mar 26, 2026

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
Published on: June 16, 2020
[Analysis of clinical feature of IgG4 related disease]
Yanming Li1, He Wang, Fang Fang
1Department of Respiratory and Critical Care Medicine, Beijing Hospital, Beijing 100730, China.
Objective:
To summarize the clinical characteristics of IgG4 related disease.
Methods:
A retrospective analysis of clinical manifestation, radiography and pathological information of patients diagnosed with IgG4 related disease in Beijing Hospital.
Results:
Patients recruited in this study were 7 males and 7 females at the average age of (64.3±10.0) years old. Equal or greater than two organs were suffered in 10 patients. In these involved organs, pancreas was the most suffered organ with 10 times, bile duct and salivary gland was suffered 5 times respectively, lung was suffered 4 times and lacrimal gland was suffered 2 times. Laboratory examination of these 14 cases showed that 5 of these cases were with increased level of plasma IgG and all of the cases were with increased level of IgG4, 7 patients were with increased level of eosinophil count and 9 patients in 12 cases were with the increased level of IgE. All of the diagnosed patients were eusemia and 13 of them received the treatment of glucocorticoid. After usage of glucocorticoid, the clinical symptom and radiography findings were at great improvement, and the levels of IgG4 were decreased, but only two cases were down to normal level.
Conclusions:
IgG4 related disease is a kind of disease with various manifestation and multiple organs are commonly suffered. The increase of IgG, IgE levels and eosinophil count could be considered as diagnosis clues.
Related Concept Videos
Chronic Bowel Disorders: Introduction
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Irritable Bowel Syndrome II: Clinical Features and Diagnostic Evaluation
Irritable Bowel Syndrome (IBS) is classified into subtypes based on the predominant bowel habits as determined by the Bristol Stool Form Scale (BSFS). The subtypes are:
Inflammatory Bowel Disease II: Crohn's Disease
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...
Inflammatory Bowel Disease I: Ulcerative Colitis
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Transcytosis of IgG
IgG molecules from a mother undergo transcytosis starting around 13 weeks of gestation. The amount of IgG transferred and entering the fetal blood circulation increases with...
Endocarditis II: Clinical Features of Infective Endocarditis

