For mural lesions, what is the recommended surgical margin for resection?

• A. 0.5 cm
• B. 1 cm
• C. 2 cm
• D. 3 cm

Answer: (B)

The recommended surgical margin for the resection of mural lesions is typically 1 cm. This margin is based on the need to ensure complete excision of the lesion while minimizing the risk of recurrence. Mural lesions, which can include cysts or certain types of tumors, require adequate margins to remove any potential microscopic disease that may extend beyond the visible lesion. A margin of 1 cm has been supported by various studies, as it balances effective removal of the lesion with the preservation of surrounding healthy tissue. Larger margins may not be necessary in all cases and can lead to unnecessary excision of healthy tissue, resulting in increased morbidity. Thus, the 1 cm margin is a practical and evidence-based choice for surgical management of these lesions.