Ihab Lamzabi, MD

Assistant Professor of Clinical Pathology and Laboratory Medicine
University of Pennsylvania Perelman School of Medicine
Medical Director of Cytology, Pennsylvania Hospital

Contact InformationDepartment of Pathology, Pennsylvania Hospital
10th Floor Spruce Bldg,
801 Spruce St.
Philadelphia, PA 19107
Office: 215-829-3544
Fax: 215-829-7564

Specialty Division

Anatomic Pathology

Research Expertise

Lobular neoplasia of the breast
Neuroendocrine tumors and carcinoid tumor

Other Expertise

Quality improvement and education

Clinical Expertise

Cytopathology, breast pathology, head and neck pathology and gynecologic pathology


MD (Medicine) School of Medicine- University of Cadi Ayyad, Marrakech, Morocco, 2008.

Specialty Certification

American Board of Pathology, Anatomic & Clinical Pathology, 2014
Cytopathology Board certification, American Board of Pathology, 2016

Postgraduate Training

Anatomic & Clinical Pathology Residency, Rush University Medical Center, Chicago, IL, 2010-2014
Surgical Pathology Fellowship, Loyola University Medical Center, Maywood, IL, 2014-2015
Cytopathology Fellowship, Hospital of the University of Pennsylvania, Philadelphia, PA, 2015-2016

Awards and Honors

1st Prize, Trainee Award, Pulmonary Pathology Society, for “The role of BAX in carcinoid tumor of the lung”, USCAP annual meeting, San Diego CA, 2014

Memberships and Professional Organizations

United State and Canadian Academy of Pathology, 2010 - 2014
American Society for Clinical Pathology, 2010 - 2015
Illinois Society of Pathologists, 2011 - 2015
College of American Pathologists, 2011 - 2015
Chicago Pathology Society, 2011 - 2015
American Society of Cytopathology, 2015 - Present

Web Links

Selected Publications

Report of a Rare Case of Spindle Cell Ameloblastic Carcinoma and the Diagnostic Utility of Immunohistochemistry

Mohadese Behtaj 1, Faizan Alawi 2, Rabie Mamdoh Shanti 3, Steven Cannady 3, Paul Jun Zhang 4, Mitul Modi 1, Ihab Lamzabi 1, Appl Immunohistochem Mol Morphol. 2021 May-Jun 01;29(5):394-400., 2021

Highly differentiated follicular carcinoma of ovary: Use of imprint cytology at intraoperative consultation.

Dobi A, Kim SA, Zhang M, Iames E, Lamzabi I, Diagn Cytopathol 48(4): 360-363, 2020

Correlation of p16 Expression on Cancer and Stromal Cells With Clinicopathologic and Immunohistochemical Features of Lobular Breast Carcinoma.

Harbhajanka A, Lamzabi I, Bitterman P, Reddy VB, Ghai R, Gattuso P., Appl Immunohistochem Mol Morphol. 2019 Oct;27(9):658-662, 2019

A case of high-grade vulvar dysplasia with underlying spherules of amyloid deposition

Christopher P Julien, John Ekledaus, Ihab Lamzabi, Int J Case Rep Images 2019;10:101059Z01CJ2019., 2019

Amyloidosis diagnosed in cytology specimen of pleural effusion: A case report

Manur R, Lamzabi I., Diagn Cytopathol. 46(6): 522-524, 2018

Aberrant Cytokeratin 20 Reactivity in Epithelioid Malignant Mesothelioma: A Case Report.

Manur Rashmi, Lamzabi Ihab., Appl Immunohistochem Mol Morphol., 2017

Fine needle aspiration cytology of cystic primary adult granulosa cell tumor of the ovary: Potential diagnostic pitfalls with other cystic ovarian lesions

Harbhajanka Aparna, Lamzabi Ihab, Jain Richa, Syed Sahr, Murro Diana, Gattuso Paolo, Diagn Cytopathol, 2016, PMID:26956549

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Prognostic Value of Coexisting Lobular Carcinoma In Situ With Invasive Lobular Carcinoma

Harbhajanka Aparna, Lamzabi Ihab, Syed Sahr, Jain Richa, Ghai Ritu, Reddy Vijaya B, Bitterman Pincas, Gattuso Paolo, Appl Immunohistochem Mol Morphol, 2015, PMID:26574630

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Cytomorphology and immunohistochemistry of a recurrent clear cell odontogenic carcinoma with molecular analysis: A case report with review of literature

Harbhajanka Aparna, Lamzabi Ihab, Jain Richa, Gattuso Paolo, Kluskens Larry, Diagn Cytopathol 43(9): 743-6, 2015, PMID:26061809

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Myocardial changes in a patient with anorexia nervosa: a case report and review of literature

Lamzabi Ihab, Syed Sahr, Reddy Vijaya B, Jain Richa, Harbhajanka Aparna, Arunkumar Ponni, Am J Clin Pathol 143(5): 734-7, 2015, PMID:25873509

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