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Dr. Selim Nasser is associate professor of Pathology LAU School of Medicine and chief of Pathology at Clemenceau Medical Center, Beirut, Lebanon. He is a graduate of St. Joseph University, School of Medicine, Beirut, Lebanon. He completed his Pathology residency training and two fellowships in Cytopathology and Molecular Genetic Pathology at Massachusetts General Hospital, Harvard Medical School in Boston where he was also appointed chief resident and then held a faculty position in the Pathology Department at Massachusetts General Hospital until his return to Lebanon, where he introduced several new tests, including 1p/19q FISH testing and IDH1 evaluation in brain tumors as well as liquid-based cytology. Dr. Nasser is American Board certified in Anatomic Pathology and Cytopathology.

Dr. Nasser is a founding faculty of the Lebanese American University School of Medicine and the director of the Pathology residency training program. Dr. Nasser expertise and interests include Breast pathology, Neuropathology, GI pathology Cytopathology and molecular tumor markers. He has authored several articles in these fields. Dr. Nasser is an active member of Lebanese and international pathology societies



  • Medical Doctor, MD
  • American Board of Anatomic Pathology
  • American Board of Cytopathology



  1. Sabbah NA, Saoud CZ, Deeb M, Nasser SM. Helicobacter pylori Prevalence in Laparoscopic Sleeve Gastrectomy Specimen. Gastroenterol Res Pract. 2020 Dec 10;2020:
  2. Chedid G, Harb JG, Noureldine HA, Tayar C, Nasser SM, Sabbah NA. Pancreatic sarcoidosis mimicking neoplasia: Case report. Int J Surg Case Rep. 2020;74:63-65.
  3. Rahal MJH, Abou Al Ezz MR, El Hajj RA, Chokor JZ, Nasser SM, Moucharafieh RC.Elbow Cystic Lymphangioma in an 8-Month-Old Boy. Case Rep Orthop. 2019 Feb 11;2019:8762614.
  4. Sweid A, Noureldine MHA, Nasser S, Badra M, Saikali I. A Case Report of Meningeal Hemangiopericytoma: A 9-Year Journey from the Brain to the Spine. World Neurosurg. 2019 Feb;122:459-463.
  5. Rahal MJH, Karam KM, Nasser SM, Daher JA, Abdel Nour HG, Nehme AH, Moucharafieh RC. Calcaneus Metastasis from Follicular Thyroid Carcinoma 12 Years after Total Thyroidectomy. Case Rep Orthop. 2018 Aug 29;2018
  6. El Khatib N, Nehme A, Nasser S, Moukarzel N, Abtar HK. Intramasseteric Schwannoma mimicking an isolated cheek mass: Case report and review of the literature. Int J Surg Case Rep. 2018;46:24-27.
  7. Feras A. Chehade, MD, Francois G. Kamar, MD, Labib Abouzahr, MD, Jihad Daher, MD, Selim M. Nasser, MD, and Wael A. AlJaroudi, MD. What is this image? 2016: Image 2 resultJ. Nucl. Cardiol. (2016) 23: 951
  8. R Sammour , S Nasser, N Debahy  , C El Habr. Fox-Fordyce Disease: An under-diagnosed adverse event of laser hair removal? J Eur Acad Dermatol Venereol 2016 Sep;30(9):1578-82.
  9. Kmeid M, Kamar FG, Nasser S, Moukarzel N. Metachronous, Single Metastasis to the Parotid, from Primary Breast Cancer: A Case Report and Review of the Literature, Case Rep Oncol Med. 2016;2016:3965283
  10. Nasser, S. M. and Tannous, Z. S. Histology and pathology of subcutaneous tissue, in Fat Removal: Invasive and Non-Invasive Body Contouring (ed M. M. Avram), John Wiley & Sons, Ltd, Chichester, UK. 2015
  11. Al Halabi M, El Hassan J, Nasser SM. Complete remission of peritonitis in a patient with luteinized thecomas of the type typically associated with sclerosing peritonitis using GnRH agonist and anti-estrogen. Gynecol Oncol Rep. 2015 Nov 27;14:38-9.
  12. Bekdash A, Darwish M, Timsah Z, Kassab E, Ghanem H, Najjar V, Ghosn M, Nasser S, El-Hajj H, Bazerbachi A, Liu S, Leppla SH, Frankel AE, Abi-Habib RJ. Phospho-MEK1/2 and uPAR Expression Determine Sensitivity of AML Blasts to a Urokinase-Activated Anthrax Lethal Toxin (PrAgU2/LF). Transl Oncol. 2015 Oct;8(5):347-57
  13. Nasser SC, Slim M, Nassif JG, Nasser SM. Influence of proton pump inhibitors on gastritis diagnosis and pathologic gastric changes. World J Gastroenterol. 2015 Apr 21;21(15):4599-606
  14. El Habr C, Sammour R, El-Murr T, Nasser S, Abi-Nasr T, Medawar C. Acrocyanosis and necrotic purpura: a manifestation of multiple myeloma and Type I cryoglobulinemia. Int J Dermatol. 2015 Aug;54(8):946-50
  15. Kamar FG, Kairouz VF, Nasser SM, Faddoul SG, Saikali IC. Atypical choroid plexus papilloma treated with single agent bevacizumab. Rare Tumors. 2014 Mar 18;6(1):4687
  16. Hanna S, Khalil B, Nasrallah A, Saykali BA, Sobh R, Nasser S, El-Sibai M. StarD13 is a tumor suppressor in breast cancer that regulates cell motility and invasion. Int J Oncol. 2014 Mar 18;6(1):4687
  17. Naboush A, Farhat F, Nasser SM, Kamar FG. Bifocal Presentation of Primary Testicular Extranasal NK/T-Cell Lymphoma: A Case Report and Review of the Literature. Case Rep Oncol Med. 2013;2013:267389.
  18. Saliba I, El Khatib N, Nehme A, Nasser S, Moukarzel N. Metastatic parotid myoepithelial carcinoma in a 7-year-old boy. Case Rep Pediatr. 2012;2012:212746
  19. Trak-Smayra V, Paradis V, Massart J, Nasser S, Jebara V, Fromenty B. Pathology of the liver in obese and diabetic ob/ob and db/db mice fed a standard on high-calorie diet. Int J Exp Pathol. 2011 Dec;92(6):413-21
  20. Nasser SM. Flat epithelial atypia of the breast. J Med Liban. 2009;57(2):105-9
  21. Nasser SM. Gene expression profiling in breast cancer. J Med Liban. 2009;57(2):83-8.
  22. Brown EB, Boucher Y, Nasser S, Jain RK. Measurement of macromolecular diffusion coefficients in human tumors. Microvasc Res. 2004 May;67(3):231-6.
  23. Nasser SM: Columnar cell lesions: current classification and controversies. Semin Diagn Pathol. 2004 Feb;21(1):18-24.
  24. Nasser SM, Cibas ES, Crum CP, Faquin WC. The significance of the Papanicolaou smear diagnosis of low-grade squamous intraepithelial lesion cannot exclude high-grade squamous intraepithelial lesion. Cancer. 2003 Oct 25;99(5):272-6.
  25. Nasser SM, Faquin WC, Dayal Y. Expression of Androgen, Estrogen and Progesterone Receptors in Salivary Gland Tumors: Frequent Expression of Androgen Receptor in a Subset of Malignant Salivary Gland Tumors. Am J Clin Pathol 2003;119:801-806.
  26. Prasad SR, Sahani D, Nasser S, Farrell J, Castillo CF, Hahn PF, Mueller PR, Saini S. Intraductal papillary mucinous tumors of the pancreas. Abdom Imaging 2003 May;28(3):357-65.
  27. Nasser SM, Choudry UH, Nielsen GP, Ott MJ. A leukemoid reaction in a patient with a dedifferentiated liposarcoma. Surgery 2001 Jun;129(6):765-7.
  28. Nasser SM, Pitman MB, Pilch BZ, Faquin WC. Fine-needle aspiration biopsy of papillary thyroid carcinoma. Cancer. 2000 Oct 25;90(5):307-11.
  29. Carla Mouta Carreira, Selim M Nasser, Emmanuelle di Tomaso, Timothy P Padera, Yves Boucher, Stanislav I Tomarev, and Rakesh K Jain. LYVE-1 Is Not Restricted to the Lymph Vessels: Expression in Normal Liver Blood Sinusoids and Down-Regulation in Human Liver Cancer and Cirrhosis. Cancer Res November 15, 2001; 61 (22).
  30. Porter DA, Krop IE, Nasser S, Sgroi D, Kaelin CM, Marks JR, Riggins G, Polyak K. A SAGE (serial analysis of gene expression) view of breast tumor progression. Cancer Res 2001 Aug 1;61(15):5697-702.
  31. Partridge A, Nasser SM, Dzik S. Nonmalignant diagnoses in patients. Mediastinal lymphadenopathy associated with congestive heart failure. J Clin Oncol. 2000 Jul;18(13):2635-6.
  32. Seth P, Lunetta KL, Bell DW, Gray H, Nasser SM, Rhei E, Kaelin CM, Iglehart DJ, Marks JR, Garber JE, Haber DA, Polyak K.Phenol sulfotransferases: hormonal regulation, polymorphism, and age of onset of breast cancer. Cancer Res. 2000 Dec 15;60(24):6859-63.
  33. Medlej R, Nasser S. Myelolipoma: Incidentaloma of the adrenal gland. The Lebanese Medical Journal, 443,3, 1993.


Speaker at regional and international conferences

  1. February 2020:  Updates on DCIS and LCIS: The VIth Annual Beirut Breast Cancer                                      Conference. Beirut, Lebanon
  2. February 2019: Updates on pathology and Biomarkers of Kidney tumors, ASCO direct, Genitourinary malignancies summit. Beirut, Lebanon
  3. April 2018: Pathology of Idiopathic Pulmonary: 4th Regional Respiratory Forum, Fibrosis. Dubai, UAE
  4. February 2018: Pathologic Assessment of Margins in Head and Neck Squamous Cell Carcinoma: The First LAU Head and Neck Symposium. Beirut, Lebanon
  5. September 2016: Anatomic Pathology of Colon Cancer, Lebanese Society of Surgery Convention. Beirut, Lebanon
  6. July 2014:  Challenges and Opportunities in Genomic Molecular Pathology of Cancer: Meeting of the Lebanese Society of Pathology. Beirut, Lebanon
  7. November 2012: Classification of Neuroendocrine Tumors: First Middle East Forum on Neuroendocrine Tumors. Beirut, Lebanon
  8. February 2010:  Virtual Slides in the teaching of Pathology: Digital Pathology Symposium, Lebanese Society of Pathology
  9. June 2006: Circulating Tumor Cells in Breast Cancer: Advanced course of Mastology, The Mastology Association of Northern and Southern Mediterranean. Beirut, Lebanon

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