Facebook Icon Twitter icon Instagram icon Feedback

Lepidic AdenoCA VS Minimally-invasive AdenoCA

prev slide 21 of 128 next
No Image


Lepidic growth pattern is seen in both lepidic adenocarcinoma as well as in minimally-invasive adenocarcinoma (MIA) of lung. The diagnosis of lepidic adenocarcinoma is rendered if the tumor shows 1) vascular or pleural invasion; 2) tumor necrosis; 3) invasive component greater than 0.5 cm; or spread through air spaces. MIAs are less than or equal to 3 cm in size and have an invasive component less than or equal to 0.5 cm in greatest dimension.

The image shows lepidic adenocarcinoma; note the peripheral (subpleural) location of the tumor. Adenocarcinomas of the lung tend to be located more peripherally and are usually smaller in comparison to the pulmonary squamous cell carcinomas.

prev slide 21 of 128 next