Can Previous Pathology Materials and Lab Results Be Used Again? Confirm What Is Needed Before Borrowing or Sending Materials

EastMedGo Nov 6, 2026

Before visiting another hospital, ask the receiving care team which secure transfer channels they accept and who should receive your records. Send only the existing reports needed for this visit, and explain the questions you want answered and when your next treatment is scheduled. Ask the doctor to assess each item: which previous results can help them understand your condition, which need review by a pathologist, and which tests need to be repeated. Wait for the receiving team to confirm whether slides or paraffin blocks are needed and how to deliver them before requesting them from the original hospital.

Key Points

Translated reports can help communication. For a pathology review, a pathologist needs to examine materials accepted by the receiving institution before giving an opinion.
Hospitals have different rules for lending slides and paraffin blocks and providing unstained slides. Ask the receiving hospital what it needs first, then ask the original hospital what it can provide and when materials must be returned.
Lab results reflect your condition when the sample was collected. Keep the original reports, dates, units, and reference ranges so the receiving care team can decide whether the results can support current decisions.
If treatment is approaching or your condition changes, ask your current doctor and the receiving care team to discuss whether waiting for results is appropriate. Do not delay treatment on your own.

Ask the Receiving Care Team What Needs Review

Tell the receiving department about your condition, existing diagnosis, recent treatment, next treatment date, and the questions you most want answered. Examples include “Does my diagnosis need a pathology review?” and “Can my previous biomarker results be used for current treatment decisions?” Ask them to explain:

What can be answered by reviewing the reports first? Is a pathology review or additional testing also needed?
Which sampling procedure should the materials come from, and which stained slides, unstained slides, paraffin blocks, or acceptable digital materials are needed? Is a request form, translation, appointment, or referral from a clinician required?
When are preliminary and final opinions expected, and what do the fees cover? If additional testing is needed, who will contact you for consent?
Which blood or other lab results can be considered initially, which tests must be repeated before the proposed treatment, and what are the requirements for sample collection timing?

Do not treat a translation as a new pathology opinion. Even if you only have reports, you can consult the receiving care team first and ask what they can assess from the available information and what is missing. Your doctor will discuss whether a new biopsy or testing is ultimately needed in light of your condition.

Match Reports to Materials

Prepare the final pathology report in its original language, along with preliminary, supplementary, revised, and previous consultation reports. Keep every version and do not rewrite the originals yourself. Include complete reports from any existing immunohistochemistry and molecular testing, plus a brief treatment history. Following the receiving team's requirements, ask whether cytology materials or raw data are needed. Keep original lab reports. Follow the receiving team's separate imaging requirements when transferring imaging files.

Check the patient's name, pathology number, sampling date, body site and side, original issuing institution, and the correspondence between reports and slide labels. If name spellings, body sides, or numbers do not match, ask the original hospital and the receiving pathology department to verify the information and document corrections before submitting materials. Do not change labels yourself. The Cancer Hospital, Chinese Academy of Medical Sciences requires the name, pathology number, and specimen site on consultation materials to match. This is that hospital's acceptance requirement; confirm requirements separately with other hospitals.

Give your doctor biomarker results together with the sampling site, date, testing method, and limitations stated in the report. If a result says “not detected” or “uncertain significance,” ask your doctor what it can tell you. Do not assume that there are no treatment options or treat a variant of uncertain significance as a treatment target. Tumor testing and testing to assess inherited risk in a family serve different purposes. If a report suggests a possible inherited risk, ask your doctor whether genetic counseling and further confirmation are needed. Do not use tumor results alone to determine whether family members have inherited a genetic change. Tissue may be limited. Before additional testing, ask the pathology department and treatment team to discuss whether enough material is available, the order of tests, how much material may be used, and whether a new sample is needed. The US National Cancer Institute notes that insufficient tumor tissue may affect testing and that biomarkers may change over time.

Borrow Slides from the Original Hospital and Arrange Their Return

Give the receiving team's material list to the original hospital's pathology department and ask whether the specified slides or paraffin blocks can be borrowed. If paraffin blocks cannot be borrowed, ask whether unstained slides can be prepared to the receiving hospital's specifications, and first confirm whether those slides will be sufficient for the planned tests. The original hospital may require identification, a pathology report, a doctor's request, documents for someone acting on your behalf, or a deposit. Follow that hospital's instructions.

When collecting materials, check the name, pathology number, and material types and quantities with staff. Keep the loan record, deposit receipt, and return deadline. Ask where to return materials, whether the other hospital's consultation report is required, and whom to contact if you cannot return materials on time. For example, Shandong Provincial Hospital states in its published rules that slides must be returned within one month and paraffin blocks are not lent out. Do not assume other hospitals have the same rules.

You can send both hospitals the following:

Which sampling procedure should the receiving hospital's materials come from, and what types and quantities are needed? Can the original hospital provide them? Who will be responsible for returning borrowed materials, and what is the latest return date? If unstained slides are needed, please ask the receiving hospital to specify the number, intended use, and preparation requirements.

Confirm Shipping and Receipt Before Sending

First obtain explicit agreement from the receiving institution. Then confirm the following with the original hospital, receiving pathology department, and a suitable carrier: the receiving campus, department, and contact person; the material list; packaging and temperature requirements; shipping method, tracking, and costs; and who is responsible for returning materials. Slides break easily, so follow professionals' packaging instructions. Do not open or alter the packaging or relabel materials yourself.

Before carrying or shipping human tissue or other such materials across borders, ask both institutions and the carrier to verify the applicable entry and exit, quarantine, permit, and packaging requirements. The same rules cannot be assumed to apply to different materials and routes. Do not ship or carry materials yourself until the required procedures and an accepted transport method have been confirmed. China's Regulations of the People's Republic of China on Customs Health Quarantine Administration for Special Goods and Articles Entering or Leaving the Country cover special items such as human tissue. The relevant institutions and carrier should confirm whether these rules apply to your materials and how to complete the procedures for your specific circumstances.

Keep the material list, handover records, and tracking number. After the courier shows delivery, also confirm with the receiving pathology department how many items arrived, whether identifying information matches, and whether the materials can be used for the requested tests. If materials are damaged, missing, or unsuitable, ask the two laboratories to discuss how to resolve the problem. Do not decide on your own to have a new sample taken.

Let Your Doctor Assess Previous Lab Results

Arrange original blood, urine, and other lab reports relevant to this visit by sample collection date. For each test, keep the result, units, laboratory reference range, specimen type, and the timing of relevant treatment, blood transfusions, or medicines. Include any collection conditions, such as fasting. Different laboratories may use different methods, units, and reference ranges. Do not simply copy the numbers together and compare them yourself. MedlinePlus recommends interpreting results using the reference ranges from the laboratory that issued the report.

Ask the treatment team to specify for each test whether the previous result can help show past trends or is sufficient to support a current decision, and which tests need repeating, when samples should be collected, and where testing should be done. Whether a test needs repeating depends on the test, your condition, and the proposed treatment. This page cannot set a single validity period for everyone. Do not change your medicines or treatment schedule on your own while waiting for records.

After Receiving the Findings, Follow Up on Returns

Ask the receiving care team for a written pathology opinion. Confirm which materials were actually reviewed, how the findings differ from the original report, which results are still pending, and whether any differences affect the next steps. For pending results, agree on who will review them, when you will be contacted, and a backup way to communicate if you cannot be reached. Keep both reports and give them to your current treating doctor for discussion. Your treating doctor should decide whether it is appropriate to wait for pending results based on your condition.

Then check the loan list to confirm which slides or paraffin blocks will be returned, by whom and when, and which unstained slides have been used for testing or retained. Confirm with the original hospital that all required materials have been received and how the deposit will be handled. Do not assume that “the package was delivered” means “the original hospital has completed the return process.” The Cancer Hospital, Chinese Academy of Medical Sciences states that it returns the relevant paraffin blocks and/or stained slides from other hospitals after consultation, but submitted unstained slides that are used and retained there are not returned. Other hospitals may have different rules.

Frequently Asked Questions

I can only find the reports, not the slides. Can I still ask for advice first?

You can send the reports to the receiving care team first and ask what preliminary advice they can provide and which original materials they need. The receiving pathology department must confirm the material requirements for a pathology review.

What if the paraffin blocks cannot be borrowed?

Tell the receiving pathology department about the original hospital's restrictions. Ask whether stained slides, new unstained slides prepared to its specifications, or other materials will be sufficient. Do not assume that unstained slides can replace paraffin blocks for every test.

There is very little sample left. Should I still send it for testing?

First tell both pathology departments and your treating doctor. Discuss how much tissue remains, which tests should take priority, and how much tissue may be used. Also ask your doctor to explain other options and their benefits and drawbacks before deciding on the next step.

The two pathology reports have different conclusions. Which should I follow?

Keep both reports. Ask the reviewing pathology department to identify the specific differences, the materials used, and any remaining uncertainties. Then ask your treating doctor whether these differences affect treatment and whether further review is needed.

If molecular testing found no abnormalities, does that mean there are no available treatments?

Not necessarily. Ask your doctor to explain the results in light of the scope of testing, whether the sample was sufficient, when it was collected, and your current condition. Some results may not answer every treatment question.

If my previous lab tests were done abroad, must they all be repeated in China?

That cannot be decided solely by where the reports were issued. Give the reports to the receiving care team and ask which results can be considered and which tests need repeating based on the proposed treatment, how recent the results need to be, and testing requirements.

Is the consultation complete once the materials have arrived?

No. You also need to confirm that the pathology department has received and accepted the required materials, completed the review, and issued an opinion. If additional tests are pending, ask who is responsible and when results are expected. Separately, track borrowed materials until the original hospital confirms their return.

What if my condition changes or the review results will take a long time?

Contact your current treating doctor promptly. Explain any symptom changes, what you are waiting for, and the expected timing. Ask the doctor to assess whether you need local evaluation and treatment arrangements. If symptoms are severe or worsen rapidly, seek local emergency medical help promptly.