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Impact of Micropapillary Histologic Subtype in Selecting Limited Resection vs Lobectomy for Lung Adenocarcinoma of 2cm or Smaller
This retrospective study assessed the prognostic significance of the new lung adenocarcinoma classification in patients undergoing resection for small tumors (≤2cm) comparing limited vs lobectomy resections. Histologic subtype with micropapillary component >5% was associated with an increased risk of recurrence in patients operated with limited resections but not lobectomy. This increased risk disappeared when the surgical margin was >1 cm.