CD7
Methodology
Immunohistochemistry (IHC)
Test Description and clinical significance
Disease:
T-cell leukemias and myeloid leukemias. CD7 can be aberrantly expressed in refractory anaemia with excess blasts (RAEB) and may confer a worse prognosis. A lack of CD7 expression could insinuate mycosis fungoides (MF) or Sezary syndrome
This gene encodes a transmembrane protein which is a member of the immunoglobulin superfamily. This protein is found on thymocytes and mature T cells. It plays an essential role in T-cell interactions and also in T-cell/B-cell interaction during early lymphoid development.
Specimen Requirements
Collection:
FFPE/un-stained slides/Fresh tissue in formalin
Stability:
Room temperature
Unacceptable Conditions:
Unlabeled specimen/specimen left unfixed
for extended periods
Storage & Transport
Room Temperature
CPT(s)
88342 if intial single stain or 88341 for each additional stain CD7
New York Approved
NO
TAT
1 Day
*The CPT codes provided are for informational purposes only and are based on AMA guidelines The billing party is solely responsible for correct CPT coding.
