Rice body synovitis of the shoulder joint: a case report and review of clinical management and pathology - Summary - MDSpire

Rice body synovitis of the shoulder joint: a case report and review of clinical management and pathology

  • By

  • Yong Cao

  • Yang Li

  • Jun Li

  • Jinxin Gu

  • Yumei Ding

  • Xiaojun Ma

  • Jun Wan

  • July 1, 2026

  • 0 min

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Objective:

To enhance clinicians' understanding of rice body synovitis, particularly in the context of rheumatoid arthritis (RA), through a detailed case report and integration of relevant literature.

Approach:
  • Patient Case Description: A 58-year-old male with a 25-year history of RA presented with a left shoulder mass, pain, and limited mobility.
  • Diagnostic Imaging: MRI revealed capsular and bursal distension with rice body-like nodules, producing the 'floating lotus sign.'
  • Surgical Intervention: The patient underwent arthroscopic exploration and debridement, removing rice-grain-like bodies and proliferative synovial tissue.
  • Postoperative Management: Postoperative care included analgesics, rehabilitation, and follow-up for RA management.
Key Findings:
  • Laboratory tests indicated active RA with elevated rheumatoid factor (128.0 IU/mL) and anti-CCP antibody levels (86.0 RU/mL).
  • Postoperative pathology confirmed the presence of rice body synovitis.
  • At 6-month follow-up, the patient reported resolution of pain and normal range of motion.
Interpretation:

Rice body synovitis should be considered in patients with chronic inflammatory arthritis presenting with shoulder swelling and characteristic MRI findings.

Limitations:
  • The findings are based on a single case report, limiting generalizability.
  • Long-term outcomes and recurrence risk require further investigation.
Conclusion:

Arthroscopy is both diagnostically and therapeutically useful for rice body synovitis.

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