ER/PR (Estrogen/Progesterone Receptor Image Analysis)

CPT Code(s):

88361 x 2

Specimen Requirements:

At least five unstained slides or a paraffin block containing representative breast tumor

Storage/Transport: Ship at 20 - 25°C, protect from excessive heat. Include surgical pathology report.

Use:

This test is used in the diagnosis of patients with invasive breast cancer. Positive results aid in choosing appropriate treatment therapies.

Methodology:

Immunohistochemistry with image quantitation

Reported:

7 days

Reference Values:

Antibody % Nuclear Area Interpretation
ER < 1% Negative
> 1% Positive
PR < 1% Negative
> 1% Positive

Performed:

Weekly