Rayan Rammal

Rayan Rammal , MD

Areas of Expertise

Conditions I Treat

  • Adrenal tumors
  • Bladder cancer
  • Genitourinary cancers and conditions

My Specialties

  • Surgical pathology
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Get to Know Me

I am a board-certified anatomic pathologist with special training in surgical pathology for cancer, primarily the genitourinary system.

I am part of the diagnosis team and my role involves evaluating biopsies and surgical resections from the prostate, kidney, bladder, testis, and adrenal gland. Based on these evaluations, I help ensure accurate and timely diagnoses for cancer.

My research is focused on rare and aggressive bladder cancers, with additional interests in testicular neoplasms and mesenchymal tumors of the genitourinary tract.

Through translational research and the development of innovative diagnostic approaches, I aim to advance the understanding and management of genitourinary cancers. I also have an active interest in tumors of the head and neck and the endocrine system.

What I Do at MSK

I'm a pathologist, which is a doctor who uses a microscope to make a diagnosis from cell and tissue samples. I analyze these samples to learn the cause and effects of a health issue.

  • Assistant Attending Physician
Areas of Expertise

Conditions I Treat

  • Adrenal tumors
  • Bladder cancer
  • Genitourinary cancers and conditions
  • Kidney (renal cell) cancer and conditions
  • Prostate cancer and conditions
  • Testicular cancer

My Specialties

  • Surgical pathology
Education & Honors

Education

  • MD, American University of Beirut
  • BS, American University of Beirut

Residencies

  • Anatomic Pathology, University of Pittsburgh Medical Center
  • Anatomic Pathology, American University of Beirut Medical Center

Fellowships

  • Genitourinary Pathology, Memorial Sloan Kettering Cancer Center

Board Certifications

  • American Board of Pathology (Anatomic Pathology)

Awards and Honors

  • Pubmed Pro Resident Award, University of Pittsburgh Medical Center (2024)
  • Stipend Award, International Society of Urological Pathology (ISUP) (2022)
  • Dean’s Honor List/High Distinction, American University of Beirut (2016-2019)

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Contact and Location

Location
New York, NY
1275 York Avenue New York NY 10065
1133 York Avenue New York NY 10065

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Colleagues

Doctors at Memorial Sloan Kettering work as teams, with specialists from all different areas. This allows us to consider all your needs together, and to give you the best possible care.

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Clinical Trials

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Memorial Sloan Kettering's doctors and scientists are constantly developing new treatments for cancer. MSK is typically running hundreds of clinical trials at a given time.

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Research and Publications

  1. Rammal, R., Koll, F. J., Chen, Z., Tallman, J. E., Alam, S. M., Eichholz, J. E., Chatila, W., Agbamu, T., Lenis, A. T., Basar, M., Yol, C., Chen, J. F., Sarungbam, J., Chen, Y. B., Gopalan, A., Fine, S. W., Tickoo, S. K., Antonescu, C. R., Weigelt, B., Abu-Rustum, N. R., … Al-Ahmadie, H. (2025). Comprehensive Molecular, Pathological, and Clinical Characterization of Clear Cell Adenocarcinoma of the Urinary TractModern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc38(10), 100821. Advance online publication.
  2. Rammal, R., Wang, Q., Ohori, N. P., Kubik, M., Chiosea, S. I., & Seethala, R. R. (2025). Performance Characteristics of Incisional and Core Needle Biopsies for Diagnosis in Parotid Gland: Single-Institutional Experience and Assessment of the Value of a Milan System for Reporting Salivary Gland Cytopathology-Like Risk Stratification ModelArchives of pathology & laboratory medicine149(4), 328–339.
  3. Rammal, R., Seethala, R. R., Bilofsky, E. J., Freeman, T. J., & Lajara, S. (2025). Intraductal carcinoma of the parotid gland, mixed intercalated duct and oncocytic subtype with mucinous and serous acinar differentiation: cytologic and histologic features of a novel morphologyVirchows Archiv : an international journal of pathology, 10.1007/s00428-025-04066-w. Advance online publication.
  4. Chu, C. E., Chen, Z., Whiting, K., Ostrovnaya, I., Lenis, A. T., Clinton, T. N., Rammal, R., Ozcan, G. G., Akbulut, D., Basar, M., Chen, J. F., Chen, Y. B., Gopalan, A., Fine, S. W., Tickoo, S. K., Arcila, M., Brannon, A. R., Berger, M. F., Cha, E. K., Goh, A. C., … Al-Ahmadie, H. (2025). Clinical Outcomes, Genomic Heterogeneity, and Therapeutic Considerations Across Histologic Subtypes of Urothelial CarcinomaEuropean urology, S0302-2838(25)00210-6. Advance online publication.
  5. Rammal, R., Wasserman, J. K., Singhi, A. D., Griffith, C. C., & Seethala, R. R. (2023). Glomangiosarcoma-like Anaplastic Transformation in Papillary Thyroid Carcinoma: A Novel Form of Heterologous Differentiation and a Systematic Review of Heterologous Element PrevalenceEndocrine pathology34(4), 471–483.
Publications on PubMed

Visit PubMed for a full listing of Dr. Rammal’s journal articles. Pubmed is an online index of research papers and other articles from the US National Library of Medicine and the National Institutes of Health.

See all on PubMed