flat lesion

例句：

1. 1. The patient's flat lesion was removed successfully.
   患者的平坦瘤成功切除。
2. 2. The pathologist found a flat lesion on the lung tissue.
   病理学家在肺组织上发现了一个平坦的瘤。
3. 3. Flat lesions are often associated with chronic inflammation.
   平坦的病变通常与慢性炎症有关。