IHC

Claudin-4

Marks a tight junction protein expressed in most epithelial cells. Useful for identifying epithelial differentiation and distinguishing carcinomas, including differentiating adenocarcinomas from mesotheliomas.

Full Description

Marks a tight junction protein expressed in most epithelial cells. Useful for identifying epithelial differentiation and distinguishing carcinomas, including differentiating adenocarcinomas from mesotheliomas.

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 but not in directcontact with specimen. Not suitable for freeze & hold option.

Turnaround Time

24 Hrs

CPT Codes

88342x1 or 88341x1