Primary diffuse large B-cell lymphoma of the rectus abdominis muscle: a presumed primary case report and literature review
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By
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Xuejuan Duan
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Xiangyong Yue
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Jianlei Cao
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Yadong Liu
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Jun Zhang
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Yuguang Shang
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June 2, 2026
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Clinical Scorecard: Case Report and Literature Review of Primary Diffuse Large B-Cell Lymphoma in the Rectus Abdominis Muscle
At a Glance
| Category | Detail |
|---|
| Condition | |
| Key Mechanisms | Highly aggressive lymphoma with non-specific clinical manifestations and imaging features. |
| Target Population | |
| Care Setting | |
Key Highlights
- Extremely rare subtype of extranodal non-Hodgkin lymphoma.
- Diagnosis confirmed by ultrasound-guided needle biopsy and immunohistochemistry.
- Misdiagnosis is common due to non-specific symptoms and imaging findings.
- Pathological biopsy is the gold standard for diagnosis.
Guideline-Based Recommendations
Diagnosis
- Utilize ultrasound-guided core needle biopsy combined with immunohistochemistry for diagnosis.
Management
- Consider chemotherapy regimens such as R-THP-COP for treatment.
Monitoring & Follow-up
- Follow-up with imaging as clinically indicated.
Risks
- High risk of misdiagnosis leading to delayed treatment.
Patient & Prescribing Data
The R-THP-COP regimen was administered.
Clinical Best Practices
- Early identification and accurate histopathological diagnosis are crucial.
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