Related Experiment Video
Updated: Jul 4, 2026

Adoptive Immunotherapy of iNKT Cells in Glucose-6-Phosphate Isomerase (G6PI)-Induced RA Mice
Published on: January 31, 2020
Inflammatory pseudotumors in multiple organs associated with elevated serum IgG4 level: recovery by only a small
Hiroto Tsuboi1, Shigeko Inokuma, Keigo Setoguchi
1Department of Allergy and Immunological Diseases, Tokyo Metropolitan Komagome Hospital, Tokyo. Hiroto-Tsuboi@md.tsukuba.ac.jp
Abstract:
A 62-year-old man developed a fever, fatigue, anorexia and arthralgia. Central hypocorticoidism and central hypothyroidism were observed, and a low serum antidiuretic hormon level without symptoms of diabetes insipidus, as well. Images showed swelling of pituitary stalk, mediastinal and hilar lymphnodes and pancreas, pulmonary infiltrates and retroperitoneal mass. Serum CRP level was 20.6 mg/dL, and IgG4 level was 292 mg/dL. Lung biopsy revealed pseudotumor containing IgG4-positive plasmacytes, and obliterative vasculitis both in arterioles and venules. These features were similar to those of reported IgG4-related autoimmune disease. However, replacement steroid therapy for hypocorticoidism brought about almost complete recovery except that diabetes insipidus got apparent. This is the first report on the efficacy of only a small dose of steroid, and on features of pituitary stalk involvement and central hypocorcicoidism.
Related Concept Videos
Drugs for Treatment of Crohn's Disease in IBD Using Glucocorticoids
Drugs for Treatment of Crohn's Disease in IBD Using Biologic Agents: Anti-TNF
Inflammatory Bowel Disease IV: Pharmacological Management
Pharmacologic...
Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents
Gastritis-II: Pathophysiology
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
Inflammatory Bowel Disease IV: Clinical Manifestations
