Abstract
The concept of corrected tumor size originates from clinical data that prognosis of adenocarcinoma of the lung will be more accurately determined by the strength of constricting transformation of the tumor than the practical tumor size. We have observed that prognosis and TNM classification of the adenocarcinoma of the lung were not well correlated. We suppose that the concept mentioned above would explain successfuly some of the discrepancy between prognosis and TNM classification of the adenocarcinoma. There is, however, a question whether this concept can be applied to the whole adenocarcinoma of lung. For these reasons, we studied on subtypes of adenocarcinoma of the lung (1. bronchioloalveolar type 2. bronchial surface type 3. bronchial gland type 4. mixed type 5. undetermined type) clinicopathologically. Whereas bronchioloalveolar type carcinoma developes invasively, it also constricts in size on the progress. The mode of developement of bronchial surface as well as gland types is mainly expansive. Therefore, the concept of corrected tumor size appears to be applicable only to bronchioloalveolar type and some cases of mixed type but not to bronchial surface and gland types.
