Surgery>>>>>Chest Wall, Pleura, and Mediastinum
Question 5#

For an adenocarcinoma that has pleural invasion, tumor necrosis, and has lymphovascular invasion the correct subtype is:

a. Minimally invasive adenocarcinoma (MIA)
b. Lepidic predominant adenocarcinoma (LPA)
c. Invasive adenocarcinoma
d. Adenocarcinoma in situ

Correct Answer is B


If lymphovascular invasion, pleural invasion, tumor necrosis, or more than 5 mm of invasion are noted in a lesion that has lepidic growth as its predominant component, minimally invasive adenocarcinoma (MIA) is excluded and the lesion is called lepidic predominant adenocarcinoma (LPA), and the size of the invasive component is recorded for the T stage.