Zubair W. Baloch, MD, PhD

Professor of Pathology and Laboratory Medicine at the Hospital of the University of Pennsylvania
University of Pennsylvania Perelman School of Medicine

Contact InformationDepartment of Pathology and Laboratory Medicine
Hospital of the University of Pennsylvania
3400 Spruce Street, Six Founders Pavilion
Philadelphia, PA 19104-4283
Office: 215-662-3209
Fax: 215-349-8994


Specialty Division

Anatomic Pathology

Research Expertise

Molecular and immunopathology of thyroid neoplasia

Clinical Expertise

Endocrine Pathology (Cytology and Histopathology)

Other Expertise

ENT Pathology

Cytopathology Expertise

Pulmonary Cytopathology


(Matriculation), Model School, Hyderabad, Pakistan, 1975
(Intermediate), Model College, Hyderabad, Pakistan, 1977
MBBS Liaquat Medical College, Jamshoro Sind Pakistan, 1985
M.S. Hahnemann University, Philadelphia, 1988
Ph.D. Hahnemann University, Philadelphia, 1991

Specialty Certification

American Board of Pathology, Anatomic and Clinical Pathology, 1995
American Board of Pathology, Subspecialty Certification in Cytopathology, 1997

Postgraduate Training

Resident in Pathology, Hahnemann University, Philadelphia, PA, 1991-1995
Chief Resident in Pathology, Hahnemann University, Philadelphia, PA, 1994-1995
Oncologic Surgical Pathology Fellow , Memorial Sloan-Kettering Cancer Center, New York, NY, 1995-1996
Fellowship in Cytopathology, Hospital of the University of Pennsylvania, Philadelphia, PA, 1996-1997

Awards and Honors

Best Graduate, Liaquat Medical College, Pakistan, 1984-1984
Deans List, Hahnemann University, Philadelphia, 1990-1991
Who's Who Among Graduate Students, 1991-1991
Sigma Xi, 1994-1994
Kevin Salhany Teaching Award. Department of Pathology & Laboratory Medicine. University of Pennsylvania Medical Center., 2009
Peter C Nowell Teaching Award. Department of Pathology & Laboratory Medicine. University of Pennsylvania Medical Center., 2010
US News Top Doctors, 2011-2018
Best Doctors in America, 2012-2014
Mastership in Pathology. American Society of Clinical Pathology Award, 2014
Presidents Award of Service. American Society of Clinical Pathology., 2015
Philadelphia Magazine Top Doctors, 2018
Educator of The Year Award. Papanicolaou Society of Cytopathology., 2018-2019

Memberships and Professional Organizations

Philadelphia Pathology Society, 1991 - Present
American Society of Clinical Pathologists, 1995 - Present
United States and Canadian Academy of Pathology, 1995 - Present
Endocrine Pathology Society, 1997 - Present
American Society of Cytopathology, 1997 - Present
College of American Pathologist, 1997 - Present
American Thyroid Association, 1997 - Present
American Association for Clinical Endocrinologist, 1997 - present
Arthur Prudy Stout Society of Surgical Pathologist, 1999 - present
Papanicolaou Society, 2002 - Present
Endocrine Society, 2009 - Present
Philadelphia Endocrine Society, 2010 - Present
University of Pennsylvania Medical Center. Tissue Committee., 2010 - Present

Web Links

Selected Publications

#FNAFriday: How cytopathologists learn, teach, and share knowledge on Twitter.

Exposito-Afonso, IJ. Alcaraz-Mateo, E. Labiano, T. Pijuan, L. Temprana-Salvador, T. Fitzhugh, V. Fuller, M. Madriggal, E. Vignesh, W. Baloch, ZW. Jian, XS., Diagn Cytopathol 48(8): 706-710, 2020, PMID:32400974

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The Milan system for reporting salivary gland cytopathology: A comprehensive review of the literature

Jalaly, JB. Farahani, SJ. Baloch, ZW., Diag Cytopathol [Epub ahead of print], 2020, PMID:32640095

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Cytologic grading of primary malignant salivary gland tumors: A blinded review by an international panel.

Johnson, DN. Onenerk, M. Krane, JF. Rossi, ED. Baloch, ZW. Barkan, G. Bongiovanni, M. Callegari, F. Canberk, S. Dixon, G. Field, A. Griffith, CC. Jhala, N. Jian, S. Kurtycz, D. Layfield, L. Lin, O. Maleki, Z. Perez-Macahado, M. Pusztaszeri, M. Phillippe, V. Wang, H. Zarka, MA. Faquin, WC., Cancer Cytopathol 128(6): , 2020, PMID:32267606

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Milan Interobserver Reproducibility Study (MIRST): Milan System 2018.

Kurtycz, D.F.I. Rossi, E.D. Baloch, Z. Pavelec, D. Madrigal, E. Vielh, P. Faquin, W., J Am Soc Cytopathol 9(3): 116-125, 2020, PMID:32171680

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Diagnosing pancreatic serous cystadenoma on ThinPrep

Song, SJ. Baloch, Z., Diagn Cytopathol [Epub ahead of print], 2020, PMID:32374946

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The significance of mucinous metaplasia in Warthin tumor: a frequent occurrence and potential pitfall.

Zhang, X. Baloch, ZW. Cooper, K. Zhang, PJ. Puthiyaveettil, R. LiVolsi, VA., Hum Pathol 99(): 13-26, 2020, PMID:32223989

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Pathologic grading of mucoepidermoid carcinomas of the salivary gland and its effect on clinicopathologic follow-up: an institutional experience.

Shafique, K. Zhang, P.J. Montone, K.T. Song, S. LiVolsi, V.A. Baloch, Z., Hum Pathol 98(): 89-97, 2020, PMID:32035991

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Pembrolizumab-Induced Thyroiditis.

Imblum Brittney A, Baloch Zubair W, Fraker Douglas, LiVolsi Virginia A, Endocrine pathology 30(2): 163-167, 2019, PMID:31111437

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Application of the Milan System for Reporting Submandibular Gland Cytopathology: An international, multi-institutional study.

Maleki Zahra, Baloch Zubair, Lu Ryan, Shafique Khurram, Song Sharon J, Viswanathan Kartik, Rao Rema A, Lefler Holly, Fatima Aisha, Wiles Austin, Jo Vickie Y, Wang He, Fadda Guido, Powers Celeste N, Ali Syed Z, Pantanowitz Liron, Siddiqui Momin T, Nayar Ritu, Klijanienko Jerzy, Barkan Guliz A, Krane Jeffrey F, Rossi Esther D, Callegari Fabiano, Kholová Ivana, Bongiovanni Massimo, Faquin William C, Pusztaszeri Marc P, Cancer cytopathology 127(5): 306-315, 2019, PMID:31050186

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