Best Liver Specialists in Bremen, Germany

• Dr. Rainer Porschen is an ace Oncologist and a Gastroenterologist based in Bremen with a rich experience of 37 years in the field.  
• He is among the best-rated gastroenterologists in Europe and was ranked among the top 100 doctors of Germany by FOCUS magazine for the treatment of GI lesions. 
• He is a professional member of several medical societies of Germany that deal with the treatment of rectum and cancer, ulcerative colitis, pancreatic cancer, Barrett’s syndrome and reflux disease.   
• In 1973, he completed his graduation from the National University of Aachen and in 1980 received his doctorate from the Institute of Medicine of the Nuclear Research Center, Jülich.  
• His area of expertise is in the treatment of tumours of the gastrointestinal (GI) tract, X-ray diagnostics and in conducting colonoscopy.  He has also performed gastric bypass and Colectomy procedures. 
• He has authored several papers for various publications. 

• Dr. Huseyin Bektas is a Surgical Oncologist. He is Professor, Doctor of Medical Sciences. 
• Dr. Bektas is a member of The Association of Hepatobiliary and Pancreatic Surgery, German Society for Surgery, Association of Northwest German Surgeons, Association of German Surgeons, International College of Surgeon, Regenerative Medicine and Experimental Surgery (ReMediES).  He is also a   Board Member of SAZ Children’s Fund.
• Dr.Bektas studied medicine at Medizinische Hochschule Hanover (MHH, Hanover) where he teaches too.
• His areas of interest are, performing liver resection procedures and treating pancreatic cancer and transplant, Hepatocellular carcinoma and Gastric cancer.
• He has contributed significantly to many scientific publications. 

•  Dr. Johann Ockenga is a Surgical Oncologist and a Gastrointestinal Surgeon at Bremen-Mitte Clinic with an experience of 20 years. 
•  He was the Secretary of the German Society of Nutritional Medicine (2012). He has worked on several projects to develop guidelines for nutritional medicine. He has also contributed to the review of the World Journal of Gastroenterology. 
•  He possesses expertise in treating Sigmoid adenocarcinoma, Hepatocellular Carcinoma, Hepatitis B, Liver Diseases, Immunology and Colon cancer. 
•  He has contributed several papers to various publications over his career of two decades.