The aim of the study was to assess whether endoscopic ultrasound (EUS) could accurately measure the locoregional response to chemoradiotherapy in @entity1 with @entity189 . Seventeen @entity1 with @entity418 underwent EUS examination before and on completion of chemoradiotherapy. The EUS findings were correlated with the results of histologic examination of the esophagectomy specimen. The accuracy of EUS in these @entity1 was compared with the accuracy of EUS in a control group of 17 @entity1 treated by surgery alone. In 16 of 17 @entity1 EUS-determined @entity5 ( @entity5 ) stage was unchanged following treatment and in one @entity1 there was @entity5 -stage progression. No @entity1 demonstrated downstaging of the @entity5 according to classical EUS criteria. In 10 of 17 @entity1 a reduction in maximum @entity5 depth of >/=2 mm was observed (range 2 to 18 mm). Histologic examination revealed that four @entity1 with @entity957 had experienced a complete pathologic response. These four @entity1 had significantly lower posttreatment EUS @entity5 depths compared to @entity1 without a complete response (5.0 vs. 9.0 mm; P <0.05). Based on the post-treatment EUS examination, the accuracy was 59% for @entity5 stage and 59_percnt for node (N) stage. The accuracy of EUS in @entity1 treated by surgery alone was 94% for @entity5 stage and 94% for N stage, indicating a significant reduction in the accuracy of EUS in @entity1 following chemoradiotherapy (P <0.05). The accuracy of EUS examination in @entity1 with @entity189 treated by chemoradiotherapy was poor. EUS did not detect downstaging of the @entity5 , even in the presence of a complete pathologic response. EUS assessment of maximum @entity5 depth was a better measure of response to therapy.

Serial endoscopic ultrasound in the assessment of response to chemoradiotherapy for XXXX .

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'T', 'primary tumor'] @entity957 :: ('MESH:D002294', 'Disease') :: ['squamous cell carcinoma'] @entity189 :: ('MESH:D002277', 'Disease') :: ['carcinoma of the esophagus'] @entity418 :: ('MESH:D004938', 'Disease') :: ['esophageal carcinoma']
@entity189 :: (MESH:D002277,Disease) :: ['carcinoma of the esophagus']
