Evaluation of factors predicting appendiceal tumoral lesions in patients undergoing appendectomy for acute appendicitis.

Predicting an appendiceal tumoral lesion preoperatively is critical to ensure a favorable post-operative outcome. Higher age and low WBC counts appear to be independent risk factors for an appendiceal tumoral lesion. In case of doubt and in the presence of these factors, wider resection should be favored over appendectomy only to provide a clear surgical margin.