Mohamed Imad Abdien El Hag, MD
Assistant Professor of Pathology

Dr. El Hag is a member of the Division of Transplantation Pathology.

Office Location:
Division of Transplantation Pathology
Department of Pathology
UPMC Montefiore, Room E-742
3459 5th Avenue
Pittsburgh, PA 15213
Contact Information:
Office Phone: 412-647-2067
Fax: 412-647-5237


  • MBBS - University of Medical Sciences and Technology, Khartoum, Sudan, 2007
  • MS - Case Western Reserve University, 2011
  • Residency - University Hospitals, Cleveland Medical Center/Case Western Reserve University, 2015
  • Fellowship - University of Minnesota, 2016
  • Fellowship - University of Pittsburgh Medical Center, 2017

Clinical Expertise

My clinical expertise is in liver pathology including inflammatory (native / allograft) and neoplastic liver and bile duct diseases. I have particular interest in cholangiocarcinomas and mixed/biphenotypic primary liver tumors.

Research Interests

  • Study of outcomes of liver transplantation including antibody mediated injury and its long term effects.
  • Morphologic changes of alcoholic hepatitis: correlating morphologic changes to extent of portal hypertension and outcome.
  • Targets for immune-check point inhibition in cholangiocarcinomas.

Selected Publications

  • El Hag MI, Hag A, Ha J, Michael CW. Comparison of GATA-3, Mammaglobin, GCDFP-15 Expression in Breast Carcinoma in Serous Effusions: A Cell-Block Micro-Array Study. Pleura and peritoneum. 2017; 2(3): 143-148.
  • Stein S, Murugan P, Li F, El Hag MI. Can Medullary Thyroid Carcinoma Arise in Thyroglossal Duct Cysts? A Search for Parafollicular C-cells in 41 Resected Cases. Head Neck Pathol. 2018; 12(1): 71-74.
  • Dick TM, El Hag M, Mallery JS, Amin K. Esophageal Carcinoma Cuniculatum Associated with Non-Necrotizing Granulomatous Inflammation and Lymphadenopathy: Clinicopathologic Features and Diagnostic Challenges. American Journal of Case Reports. 2018; 19: 790-795.