IHC

PAX-8

Identifies PAX8, a nuclear transcription factor essential in fetal development and involved in kidney and thyroid differentiation. PAX8 is expressed in major renal cell carcinoma subtypes (clear cell, chromophobe, papillary), as well as in ovarian, endometrial, and thyroid carcinomas. It shows exclusive nuclear staining and performs reliably in FFPE tissues.

Full Description

Identifies PAX8, a nuclear transcription factor essential in fetal development and involved in kidney and thyroid differentiation. PAX8 is expressed in major renal cell carcinoma subtypes (clear cell, chromophobe, papillary), as well as in ovarian, endometrial, and thyroid carcinomas. It shows exclusive nuclear staining and performs reliably in FFPE tissues.

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.

Turnaround Time

24 Hrs

CPT Codes

88342x1 or 88341x1