Hematology Second Opinion — Online, from Turkey to Europe and Worldwide
Assoc. Prof. Dr. Mahmut Bakır Koyuncu works as a hematologist and faculty member at Mersin University Faculty of Medicine Hospital, Turkey. He provides online second opinions and consultations on blood disorders, including by video call, for patients across Turkey and abroad, including Germany and the rest of Europe. For a second opinion or a video consultation, WhatsApp: +90 553 533 88 53.
What is a hematology second opinion?
A second opinion is a review of your existing diagnosis and proposed treatment plan by a hematologist who was not involved in your care. Blood-disorder diagnoses often depend on several tests read together (blood counts, peripheral smear, bone marrow, flow cytometry, genetic tests), and more than one accepted treatment approach may exist. The purpose is to help you understand your condition and options and discuss them with your treating physician. It does not replace your current doctor.
Who is it for?
Patients anywhere in Turkey and patients living abroad, for example in Germany or elsewhere in Europe, who would like a hematologist to review their diagnosis or treatment options online.
When can a second opinion help?
- Benign and chronic conditions: unexplained or persistent anemia; ITP and low platelets; bleeding or clotting disorders and thrombophilia; thalassemia; myeloproliferative neoplasms (polycythemia vera, essential thrombocythemia, myelofibrosis)
- Blood cancers: leukemia, lymphoma, multiple myeloma, myelodysplastic syndromes (MDS)
- Stem cell (bone marrow) transplant decisions: whether, when and which type
Useful documents to have ready
Discharge summaries or physician letters; blood test results (including earlier ones if possible); peripheral smear, bone marrow and pathology reports; flow cytometry, cytogenetics/FISH and NGS results; imaging reports; a list of current medications and previous treatments. Missing documents are not a reason not to get in touch.
How to get in touch
Send a short WhatsApp message to +90 553 533 88 53 with your diagnosis and question. Consultations can also be held as a video call; details are provided via WhatsApp.
Limits of online review
An online review does not replace a physical examination and is not an emergency service. In an emergency, call your local emergency number (112 in Turkey and across the EU). Treatment decisions should be made together with your treating physician.
Frequently asked questions
Who is Assoc. Prof. Dr. Mahmut Bakır Koyuncu?
Assoc. Prof. Dr. Mahmut Bakır Koyuncu (also written Mahmut Bakir Koyuncu) is a hematologist and faculty member at Mersin University Faculty of Medicine Hospital (Mersin Üniversitesi Tıp Fakültesi Hastanesi) in Mersin, Turkey. He provides online second opinions and consultations on blood disorders.
Can I get a second opinion if I live outside Turkey?
Yes. Patients anywhere in Turkey and abroad, for example in Germany or elsewhere in Europe, can get in touch online.
Which conditions can a second opinion help with?
For example anemia, ITP and low platelets, bleeding or clotting disorders, thalassemia, myeloproliferative neoplasms, leukemia, lymphoma, multiple myeloma, MDS, or decisions about a stem cell (bone marrow) transplant.
Can I get an online second opinion from anywhere in Turkey or abroad?
Yes. Patients from any city in Turkey and from abroad can request an online second opinion. The review is based on your reports and test results, and the consultation can also be held as a video call. Details are provided via WhatsApp: +90 553 533 88 53.
How do I get started?
Send a short WhatsApp message to +90 553 533 88 53 (wa.me/905535338853) with your diagnosis and your question. Detailed information is provided via WhatsApp.
In which language is the consultation held?
Consultations are held in Turkish or English. A family member can of course join the consultation. You can arrange an interpreter yourself, or we can arrange an interpreter for you.
Is a video consultation possible?
Yes. The consultation can be held as a video call on weekdays between 16:00 and 17:00, Turkey time (TRT, UTC+3). Details are provided via WhatsApp.
Which documents should I prepare?
Discharge summaries or physician letters, blood test results (including earlier ones if possible), bone marrow and pathology reports, genetic test results, imaging reports and a list of your current medications. A Turkish or English translation of your reports is preferable, but you can also send them in another language. Missing documents are not a reason not to get in touch.
What should I do in an emergency?
Online consultation is not an emergency service and does not replace a physical examination. In an emergency, call your local emergency number (112 in Turkey and across the EU). Treatment decisions should be made together with your treating physician.
How can I get a second opinion from a hematologist in Turkey?
You can request a remote review of your existing records by Assoc. Prof. Dr. Mahmut Bakır Koyuncu, a hematologist at Mersin University Faculty of Medicine Hospital. Prepare your reports and contact him via WhatsApp: +90 553 533 88 53.
Can you review my bone marrow biopsy results?
Yes. Bone marrow aspiration and biopsy reports can be reviewed together with your blood counts, peripheral smear, flow cytometry and cytogenetic or molecular results. Interpreting these together gives a more reliable picture than any single report.
Can you review my flow cytometry or genetic test results?
Yes. Flow cytometry, karyotype, FISH and molecular test results are central to diagnosing and classifying leukemia, lymphoma, myeloma and myelodysplastic syndromes. Please send the full reports, not only the summary line.
Is an online hematology consultation from Turkey suitable for chronic blood conditions?
Remote review can be useful for chronic conditions such as ITP, myeloproliferative neoplasms, CLL, CML or anemia, for example when deciding when to start treatment, reviewing treatment options or interpreting follow-up results. It does not replace the physician who follows you locally.
Can a second opinion change my diagnosis or treatment plan?
Sometimes it confirms the existing diagnosis and plan; sometimes it suggests additional tests or alternative approaches. Any recommendation is meant to be discussed with your treating physician.
Prepared by: Assoc. Prof. Dr. Mahmut Bakır Koyuncu, hematology faculty member, Mersin University Faculty of Medicine Hospital · About Dr. Koyuncu (in Turkish)
Last reviewed: 2026-10-07
This page is for information only and does not replace a medical examination.