21 September 2026
: Case report 
Simultaneous Thyroid Eye Disease and IgG4-Related Orbital Disease in a Patient With Diabetes Mellitus: A Case Report
Challenging differential diagnosis, Diagnostic / therapeutic accidents, Management of emergency care, Educational Purpose (only if useful for a systematic review or synthesis), Rare coexistence of disease or pathology
Brenda Hayatulhaya ABCDEF 1*, Tomoyuki Kashima ABCDEFG 2DOI: 10.12659/AJCR.952068
Am J Case Rep 2026; 27:e952068
Figure 5 Immunohistochemical staining for IgG demonstrating numerous IgG-positive plasma cells diffusely distributed throughout the lesion (original magnification ×100), consistent with a plasma cell-rich inflammatory process.