CD7 CD7

Synonyms

Allscripts (AEHR) Order Name

Not Orderable

Sunrise Clinical Manager (SCM) Order Name

Not Orderable

Clinical Info

Identification of T cells and natural killer cells
Cluster of differentiation 7 (CD7) is expressed normally on all T cells and natural killer cells. Expression of CD7 can be aberrantly lost in T-cell lymphomas, providing support for a diagnosis of T-cell lymphoma.

Specimen Type

Tissue, Bone Marrow, Body Fluid, CSF, Blood, Swab

Container

Green Top Tube

Collection Instructions

Specimen Type: TECHONLY
Supplies: Immunostain Technical Only Envelope (T693)
Specimen Type: Tissue
Container/Tube: Immunostain Technical Only Envelope
Preferred: 2 Unstained positively charged glass slide (25- x 75- x 1-mm) per test ordered; sections 4-microns thick.
Acceptable: Formalin-fixed, paraffin-embedded (FFPE) tissue block
Specimen Minimum Volume:
Specimen Stability Information:

Specimen Type	Temperature	Time	Special Container
TECHONLY	Ambient (preferred)
	Refrigerated

Transport Instructions

Specimen Stability

Methodology

Immunohistochemistry (IHC)

Days Performed

Monday through Friday

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT

88342-TC, primary
88341-TC, if additional IHC

PDM

5200040

Result Interpretation

Forms