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Guided Breast Duct Endoscopy with Photodynamic Diagnosis and 15-MP Contrast Imaging

Published: August 9, 2026Updated: August 16, 2026

A specialized imaging test that examines the milk ducts through the nipple and may use special lighting or contrast to highlight abnormal tissue.

Quick summary

["This test looks inside the breast ducts for lesions that may explain nipple discharge or other symptoms."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
43474-6
Short code
RF Guided BD+PD Endo--15m p con ret IB
Synonyms
RF Guided BD+PD Endo--15m p con ret IB
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
rf
CPT
86430
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What is this test?

Breast duct endoscopy is a minimally invasive procedure used to examine the ducts inside the breast. Photodynamic diagnosis or contrast-enhanced imaging may be used to make suspicious tissue easier to see, and the system may display images at up to 15 megapixel resolution.

Why might I need this test?

The test may be recommended for nipple discharge, a recurring breast lump, or other symptoms suggesting a duct lesion. It can help locate and assess abnormalities such as intraductal papillomas or suspicious changes that may require further testing.

How is the test performed?

After cleaning the breast, a clinician inserts a very small endoscope through a nipple opening and views the duct passages. The ducts may be gently washed or treated with an imaging agent, and photographs are taken; a small tissue sample may be collected if needed.

How do I prepare for the test?

Follow your clinician's specific instructions. Tell the care team about breast infections, prior reactions to dyes or photosensitizing medicines, allergies, pregnancy, or breastfeeding, because the contrast or imaging protocol may need to be adjusted.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Breast duct endoscopy with photodynamic diagnosis

Frequently asked questions

Is breast duct endoscopy painful?
Most people feel pressure or mild discomfort rather than sharp pain. A topical anesthetic may be used, and the clinician can explain what sensations to expect.
Does this test use radiation?
Breast duct endoscopy itself generally does not expose the breast to radiation. If a contrast agent or photosensitizing medicine is used, the clinician will explain its purpose and any precautions.
Can this test diagnose breast cancer?
It can identify and evaluate suspicious duct findings, but it cannot always determine cancer by itself. A biopsy or other diagnostic imaging may be needed to confirm the diagnosis.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy