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Carcinoid tumors of the appendix
Archives of Pathology & Laboratory Medicine
|May 1, 1980
Summary
Appendiceal carcinoid tumors measuring 2.0 cm or larger are more likely to metastasize to lymph nodes. Surgical management for these larger tumors should involve right hemicolectomy, not just appendectomy.
Area of Science:
- Gastroenterology
- Surgical Oncology
- Pathology
Background:
- Appendiceal carcinoid tumors are rare neoplasms.
- Metastasis risk and optimal surgical management remain subjects of debate.
Purpose of the Study:
- To identify predictive features of metastasis in appendiceal carcinoid tumors.
- To inform surgical decision-making for appendiceal carcinoid tumors.
Main Methods:
- Retrospective review of 46 surgically resected appendiceal carcinoid tumors.
- Analysis of clinicopathologic features including tumor size, invasion, and lymph node status.
Main Results:
- 8.8% of appendiceal carcinoid tumors metastasized to regional lymph nodes.
- Tumor size ≥2.0 cm was the most reliable predictor of metastasis.
- Features like invasion depth and histologic type were not distinct between metastatic and localized tumors.
Conclusions:
- Tumor size is a critical factor in assessing metastasis risk for appendiceal carcinoid tumors.
- Appendiceal carcinoid tumors ≥2.0 cm warrant a more radical surgical approach, such as right hemicolectomy, to ensure complete disease removal.