JCI-accredited · 45+ hospitals & clinics · 90+ countries served · 24/7 multilingual support
Prof. Dr. Özlem Er Medical Oncology

Prof. Dr. Özlem Er

✓ Medically verified profile
Medical Oncology

Prof. Dr. Özlem Er

✓ Medically verified profile
32+ years experienceLanguages: Turkish, EnglishOnline consultationAcibadem Maslak Hospital · İstanbul
★★★★★ From 2,400+ verified Acibadem patient reviews
Prof. Dr. Özlem Er
Profile

About Prof. Dr. Özlem Er

Quick answer

Prof. Dr. Özlem Er is a Medical Oncology specialist at Acibadem Maslak Hospital in İstanbul with 32+ years of experience.

She treats breast cancer, breast cancer liver metastases, gastrointestinal stromal tumors, renal cell carcinoma, hepatocellular carcinoma, advanced and metastatic gastric cancer, small cell lung cancer, and cancer-associated venous thrombosis, and manages systemic chemotherapy including capecitabine, cisplatin-based chemotherapy, irinotecan plus cisplatin, and low-molecular-weight heparin therapy. Consultations are available in Turkish and English, including…

Prof. Özlem Er is a medical oncologist with a strong academic and clinical background. She earned her professorship from Acibadem University Faculty of Medicine in 2010 and has been affiliated with Acibadem Health Group since 2018. Her work focuses on advancing cancer care through clinical practice, research, and collaboration.

Active in the oncology community, Prof. Er holds memberships in leading professional organizations, including ASCO (American Society of Clinical Oncology), ESMO (European Society for Medical Oncology), the Turkish Oncology Group, the Medical Oncology Society, and the Turkish Cancer Research and Control Society. These affiliations reflect her commitment to staying current with oncology advances and contributing to multidisciplinary efforts in cancer treatment and control.

Clinical Focus

Areas of Expertise

Conditions treated and procedures performed by this specialist.

Breast cancerBreast cancer liver metastasesGastrointestinal stromal tumorsRenal cell carcinomaHepatocellular carcinomaAdvanced gastric cancerMetastatic gastric cancerSmall cell lung cancerCancer-associated venous thrombosisSystemic chemotherapyCapecitabine therapyCisplatin-based chemotherapyIrinotecan plus cisplatin chemotherapyLow-molecular-weight heparin therapy
Background

Education

  • 2010Acibadem University Faculty of Medicine / Professor
  • 2003Erciyes University Faculty of Medicine / Associate Professor
  • 2002Erciyes University Faculty of Medicine Medical Oncology
  • 1999Ankara Numune Training and Research Hospital Internal Medicine
  • 1994Hacettepe University Faculty of Medicine
Career

Professional Experience

  • 2018Acibadem Health Group
  • 2006–2008Thomas Jefferson University Breast Cancer Research (Research Fellow)
  • 2005–2007Head of Department of Medical Oncology, Erciyes University Faculty of Medicine
  • 2003–2004MD Anderson Cancer Center Breast Cancer Clinical Research (Clinical Observer)
  • 2002–2009Erciyes University Faculty of Medicine, Department of Internal Medicine, Division of Medical Oncology, Faculty Member
  • 1999–2002Erciyes University Faculty of Medicine Medical Oncology Residency
  • 1994–1999Ankara Numune Training and Research Hospital Internal Medicine Residency
Affiliations

Professional Memberships

  • ASCO (American Society Of Clinical Oncology)
  • ESMO (European Society or Medical Oncology)
  • Turkish Oncology Group
  • Medical Oncology Society
  • Turkish Cancer Research and Control Society
Research

Selected Publications

  • Cyclooxygenase-2 expression in gastrointestinal stromal tumors. Asian Pac J Cancer Prev. 2010;11(4):849-53 Sevinc A, Camci C, Sari I, Kalender ME, Er O, Soyuer I, Dikilitas M, Yilmaz U, Sagol O, Alacacioglu A.
  • Intramuscular metastases detected by PET/CT in a patient with renal cell tumor. V Beylergil, O. Er, Z. Calıkuşu, E. Vardareli. Acibadem University Journal of Health Sciences 2010: 1: 49-50
  • Capecitabine:Use except in breast and colorectal cancers. Remission Journal of Current Oncology 2010: 10 (1): 27-39 Ozlem Er, Halit Karaca.
  • ERCC1 is not expressed in hepatocellular cancer: A Turkish Oncology Group. Journal of BUON 2010;15:794-796 N. Serdar Turhal, E. Bas, O. Er, M. Aliustaoglu, S. Seber, F. Dane, T. Korkmaz, I. Soyuer, S. Ozkara, C. Celikel.
  • Prognostic value of excision repair cross-complementing gene 1 expression for cisplatin-based chemotherapy in advanced gastric cancer. Asian Pac J Cancer Prev. 2010;11(1):181-5 Ozkan M, Akbudak IH, Deniz K, Dikilitas M, Dogu GG, Berk V, Karaca H, Er O, Altinbas M.
  • Clinical Course Of Breast Cancer Patients With Metastases Limited To The Liver Treated With Chemotherapy. Er O, Frye Dk, Kau Sw, Broglio K, Valero V, Hortobagyi Gn, Arun B.Cancer J. 2008
  • Protective Effects Of Carvedilol Against Anthracycline-Induced Cardiomyopathy. Kalay N, Basar E, Ozdogru I, Er O, Cetinkaya Y, Dogan A, Inanc T, Oguzhan A, Eryol Nk, Topsakal R, Ergin A. J Am Coll Cardiol. 2006
  • Management of Cancer-Associated Venous Thrombosis. Er O, Zacharski L. Vasc Health Risk Manag. 2006
  • Irinotecan Plus Cisplatin Combination Against Metastatic Gastric Cancer: Phase Ii Study. Altinbas M, Er O, Ozkan M, Solak Y, Coskun Hs, Kucuk C, Gursoy S. Med Oncol. 2005
  • A Randomized Clinical Trial Of Combination Chemotherapy With And Without Low-Molecular-Weight Heparin In Small Cell Lung Cancer. Altinbas M, Coskun Hs, Er O, Ozkan M, Eser B, Unal A, Cetin M, Soyuer S. J Thromb Haemost. 2004
Good to Know

Frequently Asked Questions

What is Dr. Özlem Er's specialty?
Dr. Özlem Er is a specialist in Medical Oncology at Acibadem. For a personalised assessment, the Acibadem international patient team can review your medical history and reports and explain the suitable next steps.
Which hospital does Dr. Özlem Er practise at?
Dr. Özlem Er sees patients at Acibadem Maslak Hospital in İstanbul. The international patient team can confirm current availability and help you plan a consultation or visit.
What languages can I use when consulting Dr. Özlem Er?
Consultations with Dr. Özlem Er are supported in Turkish and English. In addition, Acibadem provides multilingual coordination and interpreter support so international patients can communicate clearly throughout their care.
How can I book an appointment with Dr. Özlem Er?
You can request an appointment with Dr. Özlem Er using the appointment form on this page, or by contacting the Acibadem international patient team by phone or WhatsApp. After you share your details, the team checks availability and confirms your appointment, usually within 24 hours.
Is an online video consultation available with Dr. Özlem Er?
Yes. Dr. Özlem Er offers online video consultations, so you can discuss your condition and reports with the specialist before making any travel arrangements. The international patient team can help you schedule a secure video visit.
How many years of experience does Dr. Özlem Er have?
Dr. Özlem Er has around 32 years of professional experience in Medical Oncology. A summary of education, experience and professional memberships is available on this page.
Can international patients arrange treatment with Dr. Özlem Er?
Yes. Acibadem supports international patients end to end — from the first consultation and treatment planning through appointment scheduling, interpretation during the stay and follow-up after returning home. Sharing your case for an initial assessment is free of charge.
How do I get a second opinion involving Dr. Özlem Er?
You can request an independent review of your diagnosis and proposed treatment. Share your medical reports through the consultation or "Ask a Doctor" form on this site, and the team will arrange a specialist review and explain the available options.
Care without borders

A dedicated team, from first message to follow-up

Our international patient office coordinates your appointment, travel and treatment at JCI-accredited Acıbadem hospitals — and stays with you in your own language, every step of the way.

Book an Appointment

Schedule your appointment with Prof. Dr. Özlem Er

Choose a date and time that suits you. Our international patient team will check availability and confirm your appointment — usually within 24 hours.

  1. 1
    Choose your date & timePick a preferred day and time slot for your visit.
  2. 2
    Share your detailsTell us how to reach you and anything we should know.
  3. 3
    We confirm with youOur team confirms the appointment by phone or email.
Why patients choose Acıbadem
35+Years of expertise
90+Countries served
20+Languages spoken
24/7Patient support
Prefer to talk now?
Appointment Request

Request your appointment

This request goes directly to this doctor’s schedule.

Prof. Dr. Özlem Er Appointment with Özlem Er Medical Oncology

Your information stays strictly confidential and is used only to arrange your care.

Where

Hospitals

Departments

Medical Units

Treatments

Treatments Performed

We’re With You at Every Step

How can we help you today?

We value your privacy We use essential cookies to run this site and, with your consent, analytics cookies to understand how it is used and improve it. You can accept, reject, or choose what to allow. See our Cookie Policy.