Gastrin

A polypeptide hormone produced by G cells in the gastric antrum and by a subset of pancreatic islet tumors (gastrinomas). Immunohistochemical detection of gastrin identifies gastrin-producing cells in tumors and G cell hyperplasia.

Synonyms

Turnaround Time

Global: 48 Hours, Tech-Only (stain only): 24 Hours

Methodology

IHC

Specimen Requirements

Tissue Block: Formalin-fixed, paraffin-embedded (FFPE) tumor block preferred.

Unstained Slides: Recommended 2 charged slides per stain requested (minimum of 1 slide per stain), baked or unbaked.

Fixation:Tissue must be fixed in 10% neutral buffered formalin for 6–72 hours.

Storage and Transportation

Use cold pack for transport. Make sure cold pack is not in direct contact with specimen.

CPT Codes

88342x1 or 88341x1