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Mohadese Behtaj Mohadese Behtaj
Assistant Professor of Pathology

Office Phone: 202-823-4214
Email: Email
Department: Pathology


  • Doctor of Medicine, Iran University of Medical Sciences, 2008


Mohadese Behtaj, MD, is an assistant professor in the Department of Pathology at The George Washington University School of Medicine and Health Sciences. Prior to joining GW, she completed a Bone and Soft tissue / Breast Pathology Fellowship at the University of Miami, as Surgical Pathology Fellowship at the University of Pennsylvania Health System (Pennsyvania Hospital), Philadelphia, PA, and an Anatomical and Clincal Residency at Case Western Reserve University, Cleveland, Oh.

Clinical Expertise

Dr. Behtaj's clincial practice focus is to provide diagnostic services in women's health (breast and gynecologic pathology) and bone and soft tissue pathology. Dr. Behtaj also provides diagnostic services in genitourinary pathology.


Breast, Bone soft tissue and Gynocologic tumors, Computational Pathology


Surgical Pathology
  • Breast Pathology
  • Gynocologic Pathology
  • Bone and Soft tissue Pathology
  • Genitourinary Pathology


Wildey G., Shay A.M., McColl K.S., Yoon S., Shatat M.A., Perwez A., Spainhower K.B., Kresak A.M., Lipka M, Yang M., Behtaj M., Fu P., Alahmadi A., Mneimneh W., Abbas A., Dowlati A.; Retinoblastoma Expression and Targeting by CDK4/6 Inhibitors in Small Cell Lung Cancer. Mol Cancer Ther 1 February 2023; 22 (2): 264–273. PMID: 36399634.

Behtaj M., Hakim M.O., Torres J.V., Rosenberg A.E., Montgomery E.A.: Common Differential Diagnostic Issues in Soft Tissue Pathology. AJSP Rev Rep, January/February 21; 26(1): 2-16. DOI: 10.1097/PCR.0000000000000420.

Hakim M.O., Behtaj M., Torres J.V., Montgomery E.A., Rosenberg A.E.: Common Differential Diagnostic Issues in Bone Tumor Pathology. AJSP Rev Rep, January/February 21; 26(1): 17-34. DOI: 10.1097/PCR.0000000000000419.

Behtaj M., Alawi F., Shanti M.R., Cannady S., Zhang J.P., Modi M., Lamzabi I.: Report of a Rare Case of Spindle Cell Ameloblastic Carcinoma and the Diagnostic Utility of Immunohistochemistry. AIMM, Jan 2021. PMID: 33480603.

Behtaj M., Zhu M.L., Bittencourt C.E., Ha J.P., Maitta R.W.: Non-O blood group thrombotic thrombocytopenic purpura patients take longer to recover as measured by number of therapeutic plasma exchanges needed for platelet recovery. Thromb Res.; 185:78-84, 2020. PMID: 31778944.

McColl K., Wildey G., Sakre N., Lipka M., Behtaj M., Kresak A., Chen Y., Yang M., Velcheti V., Fu P., Dowlati A.: Reciprocal expression of INSM1 and YAP1 defines subgroups in small cell lung cancer. Oncotarget 8(43):73745-73756, 2017. PMID: 29088741.

Norris R.E., Behtaj M., Fu P., Dowlati A.: Evaluating the role of phase I expansion cohorts in oncologic drug development. Invest New Drugs 35(1):108-114, 2017. PMID: 27718038.

Sakre N., Wildey G., Behtaj M., Kresak A., Yang M., Fu P., Dowlati A.: RICTOR amplification identifies a subgroup in small cell lung cancer and predicts response to drugs targeting mTOR. Oncotarget. 8(4): 5992-6002, 2017. PMID: 27863413.

Dowlati A., Lipka M.B., McColl K., Dabir S., Behtaj M., Kresak A., Miron A., Yang M., Sharma N., Fu P., Wildey G.: Clinical correlation of extensive-stage small-cell lung cancer genomics. Ann Oncol. 27(4):642-7, 2016. PMID: 26802149.

Kamrava S.K., Behtaj M., Ghavami Y., Shahabi S., Jalessi M., Afshar E.E., Maleki S.: Evaluation of diagnostic values of photodynamic diagnosis in identifying the dermal and mucosal squamous cell carcinoma. Photodiagnosis Photodyn Ther. 9(4):293-8, 2012. PMID: 23200008.

Industry Relationships and Collaborations

This faculty member (or a member of their immediate family) has reported a financial interest with the health care related companies listed below. These relations have been reported to the University and, when appropriate, management plans are in place to address potential conflicts.

  • None