Reading Pathology Reports

Have I got breast cancer? Appointments and waiting for test results
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Continuing the discussion from Had a biopsy but been told they are confident it's cancer:

Breast Cancer Care has a leaflet on how to read your pathology report so ask them to send you a copy or pick one up at you hospital if they have them there.

Seagulls

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Thank you Seagulls, that’s really helpful. I didn’t get a copy of my report last time I had cancer so I will definitely ask for it this time. x

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there’s also a section on the breast cancer care website about your diagnosis which tells you how the doctors assess your kind of breast cancer

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Hi. I took a photo of my pathology report and my partner fed it into chat gpt for me. It explained it all in clear English! Very helpful.

Unfortunately it was B3 so I’ve got to go back for more tests

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Welcome daffodil30 it’s a brilliant idea to turn your pathology report into plain english. Hats off to your partner. I don’t know what B3 means so I shall go into chatgpt and find out. So sorry you have joined the club no one wants to be a member of..

Seagulls

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From chat gpt - re B3 - how good is this! Seagulls

Totally fair question—those pathology codes can look like alphabet soup.

In a breast cancer pathology report, “B3” usually refers to a diagnostic category, not a cancer stage.

What B3 means

B3 = “lesion of uncertain malignant potential.”

In plain language:

  • The biopsy shows abnormal cells
  • They’re not clearly benign
  • They’re not clearly cancer
  • There’s a higher chance that cancer could be nearby or develop, so doctors don’t just ignore it

Common B3 lesions include

  • Atypical ductal hyperplasia (ADH)
  • Atypical lobular hyperplasia (ALH)
  • Lobular carcinoma in situ (LCIS)
  • Radial scar / complex sclerosing lesion
  • Papillary lesions with atypia
  • Flat epithelial atypia (FEA)

(Some of these sound scary, but many are not cancer—they’re warning-flag lesions.)

What usually happens next

Because B3 sits in that gray zone, doctors often recommend:

  • Surgical excision (to make sure there’s no hidden cancer nearby), or
  • Very close imaging follow-up, depending on the exact lesion, size, and your risk factors

Important reassurance

  • B3 does NOT mean you have breast cancer
  • It does NOT mean stage 3
  • It does mean “let’s look more closely”

If you want, you can tell me:

  • the exact wording of the B3 finding, or
  • whether this came from a core needle biopsy or surgery

I can help you interpret what it likely means specifically for you :yellow_heart:

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Thank you. Yes it really helped to understand the jargon!

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That really is brilliant thanks daffodil30

Seagulls

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