Skip to main content

Biopsy & pathology

Getting your slides reviewed

The practical steps for arranging a pathology review - who to ask, what to request, and how your tissue actually moves.

Key facts

At a glance

  • Your tissue is kept: laboratories retain slides and wax blocks for years - a review needs a request, not a repeat biopsy.

  • The simplest route: ask your consultant or GP to request a review - within the NHS this is routine and free.

  • Going private: formal reviews are arranged through private pathology services - you or your clinician send slides to a named subspecialist.

  • What to send: slides or blocks, the original report, and clinical history - context materially improves the review.

  • Timelines and costs: private reviews typically report in one to two weeks with fees quoted upfront; insist the outcome returns to your treating team.

The full picture

What this test involves, and how to get it

Arranging a slide review is mostly administration, and knowing the steps removes the mystique. Your tissue already exists in reviewable form: UK laboratories retain stained slides and the wax-embedded tissue blocks for many years under retention standards, so the raw material is a phone call away, not a repeat procedure. The simplest route runs through your existing team: ask your consultant (or GP) to request a second pathology opinion - within the NHS this is an ordinary, costless mechanism, and for several tumour types specialist panel review may already have happened automatically, which is worth asking about first since the answer may be that two experts have already agreed. If you prefer an independent route, private formal reviews are arranged through private hospitals’ pathology services or directly with consultant pathologist practices: you request your slides on loan from the original laboratory (your right of access covers your report; slide loans are standard inter-laboratory practice), nominate the reviewing subspecialist, and typically receive a written opinion within one to two weeks at a fee quoted before anything moves.

Three details raise the quality of any review. Send context, not just glass: the original report, relevant imaging reports and a brief clinical summary - pathologists read slides better when they know the question. Match the reviewer to the tissue: a soft tissue tumour deserves a sarcoma pathologist, a difficult mole a dermatopathologist; the subspecialty match is the entire point. And close the loop: the review’s destination is your treating team’s next decision, so ensure the written opinion reaches them and ask how it changes, or confirms, the plan. If slides must travel far - including internationally for expatriates or unique expertise - digital pathology increasingly allows scanned whole-slide images to travel instead, something the dispatching laboratory can advise on. Throughout, treatment timelines take precedence: where waiting is unsafe, teams proceed on the existing diagnosis and fold the review in when it lands.

A quiet reminder

This guide is for information, not medical advice.

Your own clinician knows your history and can tell you which parts apply to you. Next review of this page: 2027-09-27.

Frequently asked

Common questions about Getting your slides reviewed.

Quick, plain-English answers to what people ask us most.

  • What does it mean to get your slides reviewed?

    This refers to having your existing pathology slides, the thin tissue samples prepared from a biopsy or surgery, re-examined by another specialist pathologist, often for a second opinion. It's a way of double-checking a diagnosis without needing a new biopsy.

  • Why would someone want a slide review?

    People often seek a second opinion review when facing a serious or complex diagnosis, before major treatment decisions, or simply for reassurance. It can also be useful if there's uncertainty or disagreement about the original diagnosis, or to access a pathologist with particular subspecialist expertise.

  • Do I need to prepare for it?

    You'll need to arrange for your original slides, and sometimes the tissue block itself, to be sent from the hospital or lab that holds them, which usually requires your consent and sometimes a formal request. Your new specialist or clinic can often help coordinate this transfer for you.

  • What happens during the review?

    A pathologist examines the existing slides under a microscope, without needing any new procedure on you personally, and compares their findings with the original report. This can take some time, as it involves careful, detailed examination, sometimes with additional specialist staining if needed.

  • Does it have any risks?

    There's no physical risk to you at all, since no new sample is taken; only slides that already exist are reviewed. The main consideration is the time and coordination needed to transfer materials between institutions.

  • How long does the review take?

    Once slides have been received, a review typically takes one to two weeks, though this can vary depending on complexity and whether additional tests are needed on the existing tissue.

  • What do the results mean, and what happens next?

    A review may confirm the original diagnosis, providing reassurance, or occasionally identify a different diagnosis or additional detail that changes the recommended treatment plan. Either way, your doctor will discuss what the second opinion means for your care going forward.

  • How much does it cost privately, and is it available on the NHS?

    Second opinion pathology reviews can sometimes be arranged on the NHS, particularly for complex or rare cases, though this depends on your situation and clinician's recommendation. Private slide review services are also available and can often be arranged more flexibly, with cost varying by provider.

  • Is a slide review accurate and reliable?

    Specialist pathology review is a well-established, valuable part of ensuring diagnostic accuracy, particularly for rare or complex conditions. Discrepancies between an original diagnosis and a second opinion do occur, which is precisely why this option exists.

  • How do I book it privately, and how quickly can I be seen?

    Get in touch to find out more.