A rare case of intramuscular granular cell tumor in the right thigh: case report and literature review
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By
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Jue Hou
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Yifeng Zheng
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June 23, 2026
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Clinical Scorecard: An Uncommon Instance of Intramuscular Granular Cell Tumor in the Right Thigh: A Case Study and Review of Existing Literature
At a Glance
| Category | Detail |
|---|
| Condition | Granular Cell Tumor of the Extremity (GCT-E) |
| Key Mechanisms | Soft tissue neoplasm arising from Schwann cells, often misidentified as schwannoma. |
| Target Population | Middle-aged men, particularly those presenting with a mass in the thigh. |
| Care Setting | Multimodal imaging and surgical intervention in a clinical hospital setting. |
Key Highlights
- GCT-E is an uncommon neoplasm, constituting 0.5% of all soft tissue tumors.
- Typical presentation includes a slowly enlarging, painless mass.
- Multimodal imaging aids in diagnosis and surgical planning.
- En bloc excision with negative margins is the cornerstone of treatment.
- Histopathological assessment is essential for definitive diagnosis.
Guideline-Based Recommendations
Diagnosis
- Utilize multimodal imaging (ultrasound, CT, MRI, PET-CT) for preoperative assessment.
Management
- Surgical excision is the primary treatment approach.
Monitoring & Follow-up
- Postoperative histopathological and immunohistochemical analysis to confirm diagnosis.
Risks
- Potential misidentification as schwannoma; risk of incomplete excision affecting limb function.
Patient & Prescribing Data
49-year-old male with a mass in the right thigh.
Surgical intervention is critical for management; imaging plays a key role in planning.
Clinical Best Practices
- Ensure comprehensive imaging evaluation prior to surgery.
- Aim for radical resection while preserving limb functionality.
- Conduct thorough histopathological analysis post-surgery.
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