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Understanding your medical notes

Biopsy & pathology results explained in plain English

Waiting for biopsy results is stressful, and the report itself can be dense with unfamiliar, frightening-sounding words. This guide explains how a pathology report is laid out, where to find the conclusion, and what the key terms mean — so you can read yours with a little more understanding before you discuss it with your doctor.

Written by Nick Lamb, PhD, medical writer MHRA-registered Class I medical device Methods validated in a peer-reviewed study Last reviewed 13 June 2026
A note before you read on: a biopsy is simply a sample of tissue examined under a microscope, and many biopsies come back benign (not cancerous). Pathology reports are written for specialists, so individual words can sound alarming out of context. Use this guide to understand the language — but let your doctor interpret what the result means for you.

Get your report explained in plain English

Paste your biopsy or pathology report (or upload a photo, PDF, or Word file) and Patiently AI turns it into clear language and suggests questions for your appointment. Free, no account, and identifying details are removed on your device first.

Explain my report → Your text isn't stored. Available on web, iOS & Android.

How a pathology report is structured

Reports may also mention special tests (such as immunohistochemistry) used to characterise the cells, and the status of any lymph nodes examined.

Common biopsy and pathology terms, decoded

TermWhat it means
BenignNot cancerous — abnormal but doesn't invade or spread
MalignantCancerous — can invade nearby tissue and potentially spread
In situAbnormal cells still confined to where they started (very early)
InvasiveCells that have grown beyond their original layer
DysplasiaAbnormal-looking cells that are not (yet) cancer; often monitored
AtypiaCells that look somewhat unusual but aren't clearly abnormal
Grade (1–3)How abnormal the cells look / how fast they may grow (low to high)
MarginsThe edge of the sample — "clear/negative" is reassuring; "involved/positive" means cells reached the edge
-omaA suffix meaning a growth or tumour — many (e.g. lipoma) are benign
CarcinomaA type of cancer arising from surface/lining cells
HistologyExamination of tissue structure under the microscope
MetastasisSpread of cancer cells to another part of the body

Come across a term that isn't here? Patiently AI's built-in medical glossary covers over 9,000 terms — or paste the whole report in and it explains everything in context.

How to read your pathology report, step by step

  1. Find the conclusion (Diagnosis / Summary) — that's the result.
  2. Note the key descriptors — benign or malignant, in situ or invasive, the grade, and the margins.
  3. Don't over-interpret single words — meaning depends on the whole report.
  4. Write down your questions using the prompts below.
  5. Bring it to your doctor — pathology results should always be discussed with the specialist managing your care.

Don't sit with a word you don't understand

Patiently AI translates "Sections show a well-differentiated lesion, excision margins clear, no evidence of invasion" into plain English — and reminds you what to confirm with your specialist.

Try it with your own report → Paste, upload, or photograph your report.

Questions to ask your doctor about your biopsy

Patiently AI generates personalised "Questions for your doctor" automatically from your report — so you don't have to think of everything in a stressful moment.

Frequently asked questions

What is the difference between benign and malignant?

Benign means not cancerous — abnormal cells that don't invade or spread. Malignant means cancerous — cells that can invade nearby tissue and potentially spread. Many biopsies come back benign. The exact meaning for you depends on the full report and is something your doctor will explain.

Which part of a pathology report is the result?

Look for the section headed "Diagnosis", "Conclusion", or "Summary", usually near the end — that's the pathologist's bottom-line interpretation. The macroscopic and microscopic sections above it describe what the sample looked like to the eye and under the microscope.

What does "in situ" mean?

"In situ" means abnormal cells still confined to where they started, with no invasion of surrounding tissue. It's generally considered very early and more treatable than invasive disease. What it means for you depends on the whole report and your doctor's interpretation.

What do "grade" and "margins" mean?

Grade describes how abnormal the cells look and how quickly they may grow (often 1–3, low to high). Margins refer to the edge of a removed sample: "clear/negative" means no abnormal cells at the edge; "involved/positive" means abnormal cells reached the edge. Both help guide treatment.

Can Patiently AI explain my biopsy or pathology report?

Yes. Paste the report — or upload a photo, PDF, or Word file — and Patiently AI explains the findings and conclusion in plain English, decodes the terminology, and suggests questions to ask. It's free, needs no account, and removes identifying details on your device before processing. It's a tool to help you understand, not a replacement for the conversation with your specialist.

Important: This guide is general information to help you read a pathology report, not medical advice or a diagnosis. Biopsy results must always be interpreted by the doctor managing your care, in the context of your full history. Patiently AI rewrites medical text to make it easier to read; it may oversimplify or miss nuance. If you're waiting on or have received a result that worries you, contact your healthcare team.