What are preinvasive lesions of epithelial lung tumors in non–small cell lung cancer (NSCLC)?

Updated: Jul 15, 2021
  • Author: Winston W Tan, MD, FACP; Chief Editor: Nagla Abdel Karim, MD, PhD  more...
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WHO divides epithelial lung tumors into preinvasive lesions and invasive malignant lesions. Preinvasive lesions include the following:

  • Squamous dysplasia/carcinoma in situ

  • Atypical adenomatous hyperplasia

  • Diffuse idiopathic pulmonary neuroendocrine hyperplasia

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