As with breast cancers, HER2 analysis is performed in Gastric cancers to assist in predicting which therapies patients will benefit from. As well as this standard-of-care testing, mismatch-repair analysis and ISH for EBV are also available on demand.
What to send:
Please note tissue handling, tissue fixation, time between cutting and staining and excessive drying can lead to loss of expression. Fixatives containing alcohol should not be used and use of Bouin’s fixative will preclude testing by FISH methods.
A copy of the original Pathology report where possible.