Marino E. Leon, MD

Where You Are:
Marino E. Leon, MD

Associate Member

Education And Training
  • Fellow, Allegheny General Hospital, 2001 - Hematopathology
  • Resident, Hahnemann University Hospital, 2000 - Anatomic and Clinical Pathology
  • Fellow, Hahnemann University Hospital, 2000 - Cytopathology
  • Fellow, Hahnemann University Hospital, 1999 - Surgical Pathology
  • Resident, Cook County Hospital, 1998 - Anatomic and Clinical Pathology
  • MD, Cayetano Heredia Peruvian University, 1990 - Physician and Surgeon

Dr. Leon is interested in translational and collaborative research on the development of novel biomarkers for cancer diagnosis and personalized cancer treatment.

  • Leon ME, Shamekh R, Coppola D. Human papillomavirus-related squamous cell carcinoma of the anal canal with papillary features. World J Gastroenterol. 2015 Feb;21(7):2210-2213. Pubmedid: 25717259. Pmcid: PMC4326161.
  • Shamekh R, Altiok S, Leon ME. A woman with swelling of the posterior pharyngeal wall. JAMA Otolaryngol Head Neck Surg. 2014 Jul;140(7):671-672. Pubmedid: 24902797.
  • Roth R, Moffatt-Bruce S, Leon ME. Metastatic squamous cell carcinoma of the anus to the lung confirmed with allelotyping. Case Rep Pathol. 2014 Mar;2014:608521. Pubmedid: 24660084. Pmcid: PMC3934382.
  • Quinn GP, Murphy D, Pratt C, Muñoz-Antonia T, Guerra L, Schabath MB, Leon ME, Haura E. Altruism in terminal cancer patients and rapid tissue donation program: does the theory apply?. Med Health Care Philos. 2013 Nov;16(4):857-864. Pubmedid: 23539332. Pmcid: PMC3735793.
  • Wolford CC, McConoughey SJ, Jalgaonkar SP, Leon M, Merchant AS, Dominick JL, Yin X, Chang Y, Zmuda EJ, O'Toole SA, Millar EK, Roller SL, Shapiro CL, Ostrowski MC, Sutherland RL, Hai T. Transcription factor ATF3 links host adaptive response to breast cancer metastasis. J Clin Invest. 2013 Jul;123(7):2893-2906. Pubmedid: 23921126. Pmcid: PMC3696548.
  • Jackson RS, Leon ME, McCaffrey TV. Chondrosarcoma of the subglottic larynx: submucosal microdissection with the operating microscope. Laryngoscope. 2013 Jun;123(5):1216-1219. Pubmedid: 23404226.
  • Duan W, Gao L, Zhao W, Leon M, Sadee W, Webb A, Resnick K, Wu X, Ramaswamy B, Cohn DE, Shapiro C, Andreassen PR, Otterson GA, Villalona-Calero MA. Assessment of FANCD2 nuclear foci formation in paraffin-embedded tumors: a potential patient-enrichment strategy for treatment with DNA interstrand crosslinking agents. Transl Res. 2013 Mar;161(3):156-164. Pubmedid: 23063585. Pmcid: PMC3755957.
  • McClurg SW, Leon M, Teknos TN, Iwenofu OH. Chondromyxoid fibroma of the nasal septum: Case report and review of literature. Head Neck. 2013 Jan;35(1):E1-E5. Pubmedid: 21544896.
  • House JC, Henderson-Jackson EB, Johnson JO, Lloyd MC, Dhillon J, Ahmad N, Hakam A, Khalbuss WE, Leon ME, Chhieng D, Zhang X, Centeno BA, Bui MM. Diagnostic digital cytopathology: Are we ready yet?. J Pathol Inform. 2013;4:28. Pubmedid: 24392242. Pmcid: PMC3869956.
  • Zhao W, Huang CC, Otterson GA, Leon ME, Tang Y, Shilo K, Villalona MA. Altered p16(INK4) and RB1 Expressions Are Associated with Poor Prognosis in Patients with Nonsmall Cell Lung Cancer. J Oncol. 2012;2012:957437. Pubmedid: 22619677.
  • De Las Casas LE, Kalamegham R, Miranda RN, Boman DA, Ramos-Duran LR, Leon ME. Lymphadenoma of the parotid gland: cytological findings, tissue correlation and differential diagnosis. Cytopathology. 2011 Dec;22(6):418-420. Pubmedid: 21108673.
  • Harrington C, Accurso BT, Kalmar JR, Iwenofu OH, Agrawal A, Allen CM, Leon ME. Aggressive osteoblastoma of the maxilla: a case report and review of the literature. Head Neck Pathol. 2011 Jun;5(2):165-170. Pubmedid: 21181315. Pmcid: PMC3098324.
  • Henderson-Jackson EB, Helm J, Ghayouri M, Hakam A, Nasir A, Leon M, Bui M, Yeatman T, Coppola D. Correlation between Mcl-1 and pAKT protein expression in colorectal cancer. Int J Clin Exp Pathol. 2011 Mar;3(8):768-774. Pubmedid: 21151390. Pmcid: PMC2993227.
  • Bohn OL, Kalmar JR, Allen CM, Kirsch C, Williams D, Leon ME. Trabecular and psammomatoid juvenile ossifying fibroma of the skull base mimicking psammomatoid meningioma. Head Neck Pathol. 2011 Mar;5(1):71-75. Pubmedid: 20953744. Pmcid: PMC3037469.
  • Zarineh A, Leon ME, Saad RS, Silverman JF. Idiopathic hypertrophic pyloric stenosis in an adult, a potential mimic of gastric carcinoma. Patholog Res Int. 2010 Sep;2010:614280. Pubmedid: 21151511.
  • Moffatt-Bruce SD, Ross P, Leon ME, He G, Finkelstein SD, Vaida AM, Iwenofu OH, Frankel WL, Hitchcock CL. Comparative mutational profiling in the assessment of lung lesions: should it be the standard of care?. Ann Thorac Surg. 2010 Aug;90(2):388-396. Pubmedid: 20667316.
  • Bohn OL, De las Casas LE, Leon ME. Tumor-to-tumor metastasis: Renal cell carcinoma metastatic to papillary carcinoma of thyroid-report of a case and review of the literature. Head Neck Pathol. 2009 Dec;3(4):327-330. Pubmedid: 20596854. Pmcid: PMC2811566.
  • Backes FJ, Leon ME, Ivanov I, Suarez A, Frankel WL, Hampel H, Fowler JM, Copeland LJ, O'Malley DM, Cohn DE. Prospective evaluation of DNA mismatch repair protein expression in primary endometrial cancer. Gynecol Oncol. 2009 Sep;114(3):486-490. Pubmedid: 19515405.
  • Seward SM, Richardson DL, Leon ME, Zhao W, Cohn DE, Hitchcock CL. Metastatic squamous cell carcinoma of the vulva to the lung confirmed with allelotyping. Int J Gynecol Pathol. 2009 Sep;28(5):497-501. Pubmedid: 19696623.
  • Zarineh A, Leon ME, Saad RS, Silverman JF. Multiple neuroenteric cysts at cerebello-pontine angle and foramen magnum: a case report and review of the literature. Neuropathology. 2009 Jun;29(3):318-322. Pubmedid: 18715273.
  • Fisher ER, Costantino JP, Leon ME, Bandos H, Palekar AS, Fisher B, Wolmark N. Pathobiology of small invasive breast cancers without metastases (T1a/b, N0, M0): National Surgical Adjuvant Breast and Bowel Project (NSABP) protocol B-21. Cancer. 2007 Nov;110(9):1929-1936. Pubmedid: 17896781.
  • Pereira TC, Clayton AC, Tazelaar HD, Liu Y, Leon M, Silverman JF. Critical values in cytology. Diagn Cytopathol. 2006 Jun;34(6):447-451. Pubmedid: 16680772.
  • Leon ME, Hou JS, Galindo LM, Garcia FU. Fine-needle aspiration of adult small-round-cell tumors studied with flow cytometry. Diagn Cytopathol. 2004 Sep;31(3):147-154. Pubmedid: 15349982.
  • Haber MM, Leon ME, Bakker JE, Nagle D. Carcinoembryonic antigen elevation due to bowel sequestration with mucocele formation following colonic resection. Arch Pathol Lab Med. 2003 Oct;127(10):1376-1379. Pubmedid: 14521450.
  • Boyle P, Leon ME, Maisonneuve P, Autier P. Cancer control in women. Update 2003. Int J Gynaecol Obstet. 2003 Oct;83 Suppl 1:179-202. Pubmedid: 14763175.
  • Young S, Leon M, Talerman A, Teresi M, Emmadi R. Polymorphous low-grade adenocarcinoma of the vulva and vagina: a tumor resembling adenoid cystic carcinoma. Int J Surg Pathol. 2003 Jan;11(1):43-49. Pubmedid: 12598921.
  • Saad RS, Leon ME, Olson PR. Pathologic quiz case: A localized pulmonary consolidation in a young woman. Arch Pathol Lab Med. 2003 Jan;127(1):e49-e50. Pubmedid: 12562299.
  • Leon ME, Leon MA, Ahuja J, Garcia FU. Nodular myofibroblastic stromal hyperplasia of the mammary gland as an accurate name for pseudoangiomatous stromal hyperplasia of the mammary gland. Breast J. 2002 Sep-Oct;8(5):290-293. Pubmedid: 12199757.
  • Carter JI, Leon ME, England JM. Pathologic quiz case. Systemic symptoms in a human immunodeficiency virus type 1-positive 30-year-old man. Arch Pathol Lab Med. 2002 Apr;126(4):495-496. Pubmedid: 11900584.
  • Veronesi G, Solli PG, Leo F, D'Aiuto M, Pelosi G, Leon ME, De Braud F, Spaggiari L, Pastorino U. Low morbidity of bronchoplastic procedures after chemotherapy for lung cancer. Lung Cancer. 2002 Apr;36(1):91-97. Pubmedid: 11891039.
  • Leon ME, Deschler D, Wu SS, Galindo LM. Fine needle aspiration diagnosis of lipoblastoma of the parotid region. A case report. Acta Cytol. 2002 Mar-Apr;46(2):395-404. Pubmedid: 11917592.
  • Leon ME, Chavez C, Fyfe B, Nagorsky MJ, Garcia FU. Cholesterol granuloma of the maxillary sinus. Arch Pathol Lab Med. 2002 Feb;126(2):217-219. Pubmedid: 11825124.
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