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LIVER METASTASIS OF A GASTROINTESTINAL STROMAL TUMOR OF LARGE BOWEL: CASE REPORT
Summary
This case study details a gastrointestinal stromal tumor (GIST) originating in the sigmoid colon with liver metastasis. Complete resection and Imatinib treatment were administered, highlighting metastasis as a key relapse factor.
Area of Science:
- Gastroenterology
- Oncology
- Pathology
Background:
- Gastrointestinal stromal tumors (GISTs) are the most prevalent mesenchymal malignancies within the digestive tract.
- Early GIST symptoms are often subtle and nonspecific, complicating timely diagnosis.
Observation:
- A 61-year-old male presented with a GIST primarily located in the sigmoid colon and secondary liver metastasis.
- Computer tomography (CT) scans effectively identified the tumor's origin, size, and relationship with adjacent organs and liver metastasis.
Findings:
- The patient underwent en-bloc surgical resection of the primary GIST and received Imatinib for liver metastasis.
- Histological examination revealed spindle cell proliferation, with positive staining for CD117 and CD34 markers.
- Liver metastasis was identified as a significant indicator of tumor recurrence despite complete microscopic resection.
Implications:
- This case underscores the importance of vigilant monitoring for metastasis in GIST patients.
- Effective management strategies involve a combination of surgical intervention and targeted therapies like Imatinib.
- Understanding relapse factors, such as liver metastasis, is crucial for improving long-term patient outcomes in GIST management.
