BACKGROUND: Few reports have been published regarding @entity2220 that are 10 mm or less in diameter. This is considered to be the smallest @entity5 size detectable by present diagnostic modalities. METHODS: Clinicopathologic studies were performed in 57 @entity1 with @entity2220 of 10 mm or less in diameter. Outcomes were compared with two other groups that consisted of 32 @entity1 with @entity420 between 11 and 15 mm in diameter and 35 @entity1 with @entity420 between 16 and 20 mm in diameter. Tumors were curatively resected between 1992 and 2002. RESULTS: The mean age was 61.7 years. The following three features were more frequent: female sex (78.9%), nonsmokers (77.2%), and cases with @entity189 detected by computed tomography despite negative chest radiography (96.5%). Negative lymphatic invasion (94.7%) was significantly higher. Three cases showed lymphatic invasion that was classified as types E or F, according to Noguchi's classification. There were no cases of lymph node @entity3 , pleural involvement, or intrapulmonary @entity3 . Well-differentiated type was in 93.0%. Types A and B, which are noninvasive alveolar replacement-type @entity420 , were significantly dominant (86.0%). The 5-year postoperative survival rate was 97.3%, which was significantly better than in the other two groups (75.5%, 78.1%). CONCLUSIONS: Histopathologic features of most @entity2220 of 10 mm or less in diameter were types A and B. Types A and B were considered fundamentally indicated for thoracoscopic wedge resections. However, the other types required the standard operation.

XXXX : 10 mm or less in diameter.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor'] @entity189 :: ('MESH:D002277', 'Disease') :: ['carcinoma'] @entity420 :: ('MESH:D000230', 'Disease') :: ['adenocarcinomas'] @entity3 :: ('MESH:D009362', 'Disease') :: ['metastasis'] @entity2220 :: ('MESH:C538231', 'Disease') :: ['peripheral lung adenocarcinomas']
@entity2220 :: (MESH:C538231,Disease) :: ['Peripheral lung adenocarcinomas']
