BACKGROUND: Basaloid @entity2 has been reported as an uncommon and highly aggressive form of @entity1149 . Even in stage I and II of @entity189 , a 5-year survival rate of only 15% has been reported and it has been suggested that different treatment modalities for @entity189 should be considered. The aim of this study was to determine the prognostic implications of a basaloid @entity2 . METHODS: This study included a series of 291 surgically resected @entity2 , which were originally diagnosed as a poorly or @entity189 , a @entity4153 , or an atypical @entity4303 . Of these, 35 @entity189 @entity1 were identified and compared with 167 @entity957 ( @entity957 ) @entity1 in terms of the preoperative clinical data, the procedure performed, and the survival outcome. RESULTS: The overall incidence of @entity189 was 4.8%. The actuarial 5-year survival rate was 40.6% in @entity1 with @entity957 and 36.5% in those with @entity189 (p = 0.86). In stage I and II @entity1 , the actuarial 5-year survival rate was 53.9% in the @entity957 group and 57.2% in the basaloid group (p = 0.97). There were no differences in the recurrence rate and the relapse pattern (p = 0.584). Cox's proportional hazards model revealed that an age equal to 60 years old (hazard ratio 2.179, p = 0.000) and an advanced stage (hazard ratio 2.264, p = 0.000) were the risk factors for postoperative survival in both groups. CONCLUSIONS: Basaloid @entity2 does not have a worse prognosis than the other @entity1149 . Although it is obvious that a @entity189 is a unique histologic entity, it does not require a different treatment modality due to the similar clinical behavior with other @entity1149 .

Basaloid XXXX : a really dismal histologic variant?

@entity1 :: ('9606', 'Species') :: ['patients'] @entity4153 :: ('MESH:D018288', 'Disease') :: ['small cell carcinoma'] @entity957 :: ('MESH:D002294', 'Disease') :: ['poorly differentiated squamous cell carcinoma', 'PDSC'] @entity1149 :: ('MESH:D002289', 'Disease') :: ['nonsmall cell lung cancers'] @entity2 :: ('MESH:D008175', 'Disease') :: ['lung tumors', 'carcinoma of the lung'] @entity189 :: ('MESH:D002277', 'Disease') :: ['basaloid carcinoma', 'undifferentiated carcinoma'] @entity4303 :: ('MESH:D002276', 'Disease') :: ['carcinoid']
@entity2 :: (MESH:D008175,Disease) :: ['carcinoma of the lung']
