We studied the impact on prognosis by negative LN (NLN) harvest count on rectal cancer patients, using immunohistochemistry to exclude micrometastasis in nodes negative by hematoxylin and eosin (H & E) stain. A prospective study including 114 patients in Mansoura university hospitals between 2005-2008 aged 18 years or older who were diagnosed as having localized invasive adenocarcinoma rectum w...