# Immunoglobulin G4–Related Disease of the Sternoclavicular Joint: A Case Report

**Authors:** Remi Mizuta, Shinnosuke Takemoto, Mutsumi Ozasa, Sawana Ono, Takahito Fukuda, Ryuta Tagawa, Fumiko Hayashi, Kazumasa Akagi, Hiromi Tomono, Hirokazu Taniguchi, Midori Matsuo, Hiroshi Gyotoku, Takahiro Takazono, Hiroshi Ishimoto, Noriho Sakamoto, Keitaro Matsumoto, Yasushi Obase, Tomoya Nishino, Hiroshi Mukae

PMC · DOI: 10.1002/ccr3.70366 · Clinical Case Reports · 2025-04-01

## TL;DR

This case report shows that a rare immune-related disease can affect the sternoclavicular joint, suggesting the need for biopsies to confirm the diagnosis.

## Contribution

The novelty is the first reported case of IgG4-related disease occurring in the sternoclavicular joint.

## Key findings

- IgG4-related disease can present in the sternoclavicular joint.
- Biopsy is recommended for suspected cases to confirm the diagnosis.

## Abstract

This case highlights the possibility that Immunoglobulin G4‐related disease (IgG4‐RD) lesions can also occur in the sternoclavicular joint. If a neoplastic lesion is found in the sternoclavicular joint, a biopsy should be attempted to diagnose IgG4‐RD as a differential.

## Full-text entities

- **Diseases:** IgG4-RD (MESH:D000077733)

## Full text

_Full body text omitted from this summary view._ Fetch the complete paper as Markdown: https://tomesphere.com/paper/PMC11961371/full.md

## Figures

5 figures with captions in the complete paper: https://tomesphere.com/paper/PMC11961371/full.md

## References

15 references — full list in the complete paper: https://tomesphere.com/paper/PMC11961371/full.md

---
Source: https://tomesphere.com/paper/PMC11961371