Gastric HER2

Patient Preparation

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:

• Paraffin block from biopsy, resection or cell block
• Unstained mounted sections at 3μm on charged slides for IHC on ROCHE TOMO slides. Slides dried at 37°C
• A labelled reference slide highlighting the desired area for analysis, as appropriate 

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.

Gastric HER2 Request Form