University of Iowa
Diagnostic Laboratories
(UIDL) Test Directory

319-384-7212 (local)
1-866-844-2522 (toll free)


Progesterone Receptor Order Code: IPRF
Order Form: Anatomic Pathology Consult Requisition
Specimen:
Tissue or FNA
Testing
Schedule:
0800-1630 Monday through Friday.
Analytic Time:
2 days
Reference Range:
The pathologist will provide an interpretative report.
Comments:
Progesterone Receptor (PR) expression in breast carcinomas, similar to 
estrogen receptor positivity, has been associated with tumor 
responsiveness to hormonal therapy. Immunohistochemical (IHC) staining 
of formalin-fixed, paraffin-embedded tumor sections has proven to be a 
sensitive means of defining positivity. An immunohistochemical score is 
generated by the interpreting pathologist. A score >2 has been used to 
define PR positivity.
Methodology:
Immunohistochemistry
Instructions:
Contact University of Iowa Diagnostic Laboratories 
1-866-844-2522 (toll free) 
319-384-7213 (Fax)
CPT Code:
88342 (Technical)
88342-26 Professional Interpretation)
 
See also:
Estrogen Receptor, Tissue or FNA
 
See Additional Information:
Consultation Overview

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Updated: 02/15/2007