IgG4-related autoimmune pancreatitis mimicking pancreatic carcinoma: a case report
-
By
-
Zejun Lu
-
Lijuan Wang
-
Ping Lu
-
Shangchao Cao
-
Bin Liu
-
Lei Li
-
Zhiqiang Jiang
-
Haiqiang Chu
-
Yingrong Xie
-
Jingbo Kang
-
June 18, 2026
-
Clinical Scorecard: Autoimmune Pancreatitis Associated with Elevated IgG4 Levels Resembling Pancreatic Cancer: A Case Study
At a Glance
| Category | Detail |
|---|
| Condition | |
| Key Mechanisms | Elevated serum IgG4 levels. |
| Target Population | |
| Care Setting | |
Key Highlights
- Initial suspicion of pancreatic malignancy due to imaging findings.
- Markedly elevated serum IgG4 levels (10,022 μg/mL) confirmed diagnosis.
- Histopathological examination showed benign ductal epithelium.
- Treatment with glucocorticoids led to normalization of IgG4 and CA19-9 levels.
Guideline-Based Recommendations
Diagnosis
- Utilize serum IgG4 levels and histopathological examination for diagnosis.
Management
- Initiate glucocorticoid therapy, starting with oral methylprednisolone.
Monitoring & Follow-up
- Regularly monitor serum IgG4 and CA19-9 levels during follow-up.
Risks
- Avoid unnecessary surgical interventions in cases of IgG4-related autoimmune pancreatitis.
Patient & Prescribing Data
Adult patients with suspected autoimmune pancreatitis.
Glucocorticoid therapy shows significant clinical and biochemical response.
Clinical Best Practices
- Include IgG4-related autoimmune pancreatitis in differential diagnosis of pancreatic masses.
Related Resources & Content
