CD4 by Immunohistochemistry

Casandra

Casandra Test Code AR65235Version 1 (DRAFT)

Performing Lab

Lab ARUP LaboratoriesLab Test ID 2003511CPT Code 88342

CD4 by Immunohistochemistry

Also known as: CD4 IHC

Clinical Use

Order Test

Use

CD4 by Immunohistochemistry is used to evaluate the presence and pattern of CD4 protein expression on tissues or cells. CD4 is a glycoprotein found predominantly on the surface of immune cells such as T-helper cells, monocytes, macrophages, and dendritic cells. This test aids in the characterization of various lymphoproliferative disorders and other pathological conditions characterized by abnormal immune cell populations. It is particularly useful in the diagnosis and monitoring of diseases such as lymphomas, where CD4 expression helps differentiate between different subtypes of T-cell lymphomas.

Special Instructions

For immunohistochemistry ordering and submission, an electronic request should be submitted. If electronic ordering is not available, an ARUP Immunohistochemistry Stain Form (#32978) with an ARUP client number should be used. For additional technical details, contact ARUP Client Services.

Limitations

This test is performed as a stain and return (technical) service only. Interpretive analysis is not included in this service, and pathologists should be aware that results should be interpreted within the context of histological and clinical findings. Inappropriate specimen type or quality, non-representative tissue type, or depleted specimens will be considered unacceptable for analysis.

Test Details

New York Approved