BACKGROUND/AIMS: Minimally invasive surgery has been used to improve the quality of life after operation in @entity1 with @entity356 . Sentinel-lymphnode biopsy can help to limit the extent of lymph node dissection, but the diagnostic and therapeutic usefulness of this technique has not been accurately evaluated in @entity356 . This study was designed to clarify the role of intraoperative sentinel-node biopsy in @entity1 with @entity356 . METHODOLOGY: We were conducted to evaluate 1) mapping sentinel nodes according to @entity5 location 2) comparison sentinel node @entity3 as assessed by frozen section, permanent section (HE stain) and immunohistochemical diagnoses, and 3) comparison non-sentinel node @entity3 as assessed by permanent section (HE stain) and immunohistochemical diagnosis. RESULTS: All sentinel nodes were identified in the regional perigastric lymph node group close to the @entity5 . Four of the 43 sentinel lymph nodes were positive for @entity3 . Similar diagnostic results were obtained by the 3 different procedures. Lymph node @entity3 was found in 10 (4 sentinel nodes and 6 non-sentinel nodes) of 779 lymph nodes (1.28%) on HE staining. Immunohistochemical studies revealed a similar number of positive sentinel nodes as that obtained on HE staining, but identified @entity3 in 15 in non-sentinel nodes in 2 @entity1 , as compared with only 6 nodes on HE staining. In one @entity1 , sentinel nodes at No. 1 and No. 3 were negative for @entity3 , whereas non-sentinel lymph nodes at NO. 3 were positive for @entity3 . The other @entity1 had negative sentinel nodes at No. 3 and No. 4d, but positive non-sentinel nodes at No. 4d. CONCLUSIONS: The results of this small study do not yet provide a firm basis for recommending that sentinel-node biopsy is used to reduce the extent of lymph node dissection.

Clinical usefulness of intraoperative sentinel-node biopsy in XXXX .

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor'] @entity356 :: ('MESH:D013274', 'Disease') :: ['gastric cancer'] @entity3 :: ('MESH:D009362', 'Disease') :: ['metastasis', 'metastases']
@entity356 :: (MESH:D013274,Disease) :: ['gastric cancer']
