"An Observational Study to Determine the Incidence of of Her 2 Positivity in 100 Consecutive Gastric Cancers"

Study Objective/ Aims Aim: - Rate of Her 2 positivity in 100 consecutive gastric cancer patients Primary Objective Test for Her 2 in 100 consecutive gastric cancer patients Immuno-histochemistry will be done in all patients. Patients with 2 and 3+ IHC will also have FISH done. Study Design& Methodology Patients will have the Her2 tested in 100 consecutive gastric cancer samples by immunohistochemistry and patients with 2+ and 3+ result will also have FISH done. This will not affect patient management Overview of Data collection Dr.Bhawna Sirohi the principal investigators will maintain and supervise data collection and maintaining records. The patient will be de-identified. Selection of Study Population Inclusion Criteria: 100 consecutive patients with gastric cancer who have a pathology specimen at TMH Exclusion Criteria: If histopathology blocks were not available 5) Sample size 100 to be enrolled. Patient consent waiver applied for as this does not affect patient care 6) Statistical Analysis It is an Observational study so Results will be given as %age of total population.