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Yanling Ma, MD

TitleProfessor of Clinical Pathology
InstitutionUniversity of Southern California
DepartmentPathology
AddressCT 1200 North State Street
Off Campus
Los Angeles CA 90033
Phone+1 323 409 1370
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    Dr. Ma is currently a staff pathologist at both LAC+USC Medical Center and Women’s Hospital and teaches courses in pathology to second year USC medical students. A native of China, Dr. Ma first came to USC in 1994 as a pathology intern at LAC+USC Medical Center. A residency and fellowship at LAC+USC Medical Center followed and in 2000, Dr. Ma was appointed Assistant Professor of Clinical Pathology. Dr. Ma has been a member of the College of American Pathologists since 1977 and is also currently a member of the Keck School of Medicine’s Residency Recruitment Committee. A former Acting Chief of Surgical Pathology, Dr. Ma currently directs the Immunohistochemistry Laboratory.


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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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    1. Press MF, Seoane JA, Curtis C, Quinaux E, Guzman R, Sauter G, Eiermann W, Mackey JR, Robert N, Pienkowski T, Crown J, Martin M, Valero V, Bee V, Ma Y, Villalobos I, Slamon DJ. Assessment of ERBB2/HER2 Status in HER2-Equivocal Breast Cancers by FISH and 2013/2014 ASCO-CAP Guidelines. JAMA Oncol. 2018 Dec 06. PMID: 30520947.
      View in: PubMed
    2. Ma Y, Gal A, Koss M. Reprint of: The pathology of pulmonary sarcoidosis: update. Semin Diagn Pathol. 2018 Sep 24. PMID: 30262157.
      View in: PubMed
    3. Kiran S, Jeong YJ, Nelson ME, Ring A, Johnson MB, Sheth PA, Ma Y, Sener SF, Lang JE. Are we overtreating intraductal papillomas? J Surg Res. 2018 Nov; 231:387-394. PMID: 30278958.
      View in: PubMed
    4. Press MF, Ellis CE, Gagnon RC, Grob TJ, Buyse M, Villalobos I, Liang Z, Wu S, Bang YJ, Qin SK, Chung HC, Xu J, Park JO, Jeziorski K, Afenjar K, Ma Y, Estrada MC, Robinson DM, Scherer SJ, Sauter G, Hecht JR, Slamon DJ. HER2 Status in Advanced or Metastatic Gastric, Esophageal, or Gastroesophageal Adenocarcinoma for Entry to the TRIO-013/LOGiC Trial of Lapatinib. Mol Cancer Ther. 2017 01; 16(1):228-238. PMID: 27811012.
      View in: PubMed
    5. Press MF, Sauter G, Buyse M, Fourmanoir H, Quinaux E, Tsao-Wei DD, Eiermann W, Robert N, Pienkowski T, Crown J, Martin M, Valero V, Mackey JR, Bee V, Ma Y, Villalobos I, Campeau A, Mirlacher M, Lindsay MA, Slamon DJ. HER2 Gene Amplification Testing by Fluorescent In Situ Hybridization (FISH): Comparison of the ASCO-College of American Pathologists Guidelines With FISH Scores Used for Enrollment in Breast Cancer International Research Group Clinical Trials. J Clin Oncol. 2016 Oct 10; 34(29):3518-3528. PMID: 27573653.
      View in: PubMed
    6. de Castro Abreu AL, Ukimura O, Shoji S, Leslie S, Chopra S, Marien A, Matsugasumi T, Dharmaraja A, Wong K, Zaba N, Ma Y, Desai MM, Gill IS. Robotic transmural ablation of bladder tumors using high-intensity focused ultrasound: Experimental study. Int J Urol. 2016 Jun; 23(6):501-8. PMID: 27037721.
      View in: PubMed
    7. Dorff TB, Schuckman AK, Schwartz R, Rashad S, Bulbul A, Cai J, Pinski J, Ma Y, Danenberg K, Skinner E, Quinn DI. Epidermal Growth Factor Receptor, Excision-Repair Cross-Complementation Group 1 Protein, and Thymidylate Synthase Expression in Penile Cancer. Clin Genitourin Cancer. 2016 10; 14(5):450-456.e1. PMID: 26935231.
      View in: PubMed
    8. Zhou S, Ma Y, Chandrasoma P. Inverted lymphoglandular polyp in descending colon. Case Rep Pathol. 2015; 2015:646270. PMID: 25767731; PMCID: PMC4342070.
    9. Zhou S, Ma Y, Chandrasoma P. Small bowel dissemination of coccidioidomycosis. Case Rep Pathol. 2015; 2015:403671. PMID: 25685582; PMCID: PMC4313680.
    10. Azhar RA, de Castro Abreu AL, Broxham E, Sherrod A, Ma Y, Cai J, Gill TS, Desai M, Gill IS. Histological analysis of the kidney tumor-parenchyma interface. J Urol. 2015 Feb; 193(2):415-22. PMID: 25111913.
      View in: PubMed
    11. Ukimura O, de Castro Abreu AL, Matsugasumi T, Shoji S, Ma Y, Gill IS. Robot-assisted laparoscopic high-intensity focused ultrasound for focal therapy of prostate: novel approach. Int J Urol. 2014 Dec; 21(12):1289-90. PMID: 25041288.
      View in: PubMed
    12. Guo J, Friedman JL, Ma Y. Granular cell tumor of the testicular tunica albuginea: a case report. Appl Immunohistochem Mol Morphol. 2014 May-Jun; 22(5):395-9. PMID: 23455175.
      View in: PubMed
    13. Brown A, Ma Y, Danenberg K, Schuckman AK, Pinski JK, Pagliaro LC, Quinn DI, Dorff TB. Epidermal growth factor receptor-targeted therapy in squamous cell carcinoma of the penis: a report of 3 cases. Urology. 2014 Jan; 83(1):159-65. PMID: 24238569.
      View in: PubMed
    14. de Castro Abreu AL, Ma Y, Shoji S, Marien A, Leslie S, Gill I, Ukimura O. Denonvilliers' space expansion by transperineal injection of hydrogel: implications for focal therapy of prostate cancer. Int J Urol. 2014 Apr; 21(4):416-8. PMID: 24118183.
      View in: PubMed
    15. Chandrasoma P, Wijetunge S, DeMeester S, Ma Y, Hagen J, Zamis L, DeMeester T. Columnar-lined esophagus without intestinal metaplasia has no proven risk of adenocarcinoma. Am J Surg Pathol. 2012 Jan; 36(1):1-7. PMID: 21959311.
      View in: PubMed
    16. Ahlmann ER, Ma Y, Tunru-Dinh V. A Rare Case Report of Extensive Polyostotic Gorham's Disappearing Bone Disease Involving the Upper Extremity. Case Rep Orthop. 2011; 2011:486756. PMID: 23198213; PMCID: PMC3504258.
    17. Chandrasoma P, Wijetunge S, Ma Y, Demeester S, Hagen J, Demeester T. The dilated distal esophagus: a new entity that is the pathologic basis of early gastroesophageal reflux disease. Am J Surg Pathol. 2011 Dec; 35(12):1873-81. PMID: 21989338.
      View in: PubMed
    18. Hung AJ, Ma Y, Zehnder P, Nakamoto M, Gill IS, Ukimura O. Percutaneous radiofrequency ablation of virtual tumours in canine kidney using Global Positioning System-like technology. BJU Int. 2012 May; 109(9):1398-403. PMID: 21992738.
      View in: PubMed
    19. Yacoub WN, Petrosyan M, Sehgal I, Ma Y, Chandrasoma P, Mason RJ. Prediction of patients with acute cholecystitis requiring emergent cholecystectomy: a simple score. Gastroenterol Res Pract. 2010; 2010:901739. PMID: 20631896; PMCID: PMC2902011.
    20. Press MF, Finn RS, Cameron D, Di Leo A, Geyer CE, Villalobos IE, Santiago A, Guzman R, Gasparyan A, Ma Y, Danenberg K, Martin AM, Williams L, Oliva C, Stein S, Gagnon R, Arbushites M, Koehler MT. HER-2 gene amplification, HER-2 and epidermal growth factor receptor mRNA and protein expression, and lapatinib efficacy in women with metastatic breast cancer. Clin Cancer Res. 2008 Dec 01; 14(23):7861-70. PMID: 19047115.
      View in: PubMed
    21. Ma Y, Gal A, Koss MN. The pathology of pulmonary sarcoidosis: update. Semin Diagn Pathol. 2007 Aug; 24(3):150-61. PMID: 17882899.
      View in: PubMed
    22. Chandrasoma P, Wickramasinghe K, Ma Y, DeMeester T. Adenocarcinomas of the distal esophagus and "gastric cardia" are predominantly esophageal carcinomas. Am J Surg Pathol. 2007 Apr; 31(4):569-75. PMID: 17414104.
      View in: PubMed
    23. Bu X, Ma Y, Der R, Demeester T, Bernstein L, Chandrasoma PT. Body mass index is associated with Barrett esophagus and cardiac mucosal metaplasia. Dig Dis Sci. 2006 Sep; 51(9):1589-94. PMID: 16927134.
      View in: PubMed
    24. Chandrasoma P, Makarewicz K, Wickramasinghe K, Ma Y, Demeester T. A proposal for a new validated histological definition of the gastroesophageal junction. Hum Pathol. 2006 Jan; 37(1):40-7. PMID: 16360414.
      View in: PubMed
    25. Press MF, Sauter G, Bernstein L, Villalobos IE, Mirlacher M, Zhou JY, Wardeh R, Li YT, Guzman R, Ma Y, Sullivan-Halley J, Santiago A, Park JM, Riva A, Slamon DJ. Diagnostic evaluation of HER-2 as a molecular target: an assessment of accuracy and reproducibility of laboratory testing in large, prospective, randomized clinical trials. Clin Cancer Res. 2005 Sep 15; 11(18):6598-607. PMID: 16166438.
      View in: PubMed
    26. Lum CA, Motamed NA, Hwang CD, Ma Y, Kiyabu MT. Pleomorphic atypical extraosseous ewing sarcoma in a 25-year-old woman: a cytogenetic diagnosis. Appl Immunohistochem Mol Morphol. 2005 Jun; 13(2):201-4. PMID: 15894936.
      View in: PubMed
    27. Chandrasoma S, Moatamed N, Chang A, Daneshmand S, Ma Y. Angiomyolipoma of the kidney: expanding disease spectrum demonstrated by 3 cases. Appl Immunohistochem Mol Morphol. 2004 Sep; 12(3):277-83. PMID: 15551744.
      View in: PubMed
    28. Chandrasoma PT, Der R, Ma Y, Peters J, Demeester T. Histologic classification of patients based on mapping biopsies of the gastroesophageal junction. Am J Surg Pathol. 2003 Jul; 27(7):929-36. PMID: 12826885.
      View in: PubMed
    29. Balmaceda D, Ciccolo M, Ma Y, Baydur A. Leiomyosarcoma of the trachea masquerading as chronic asthma. Respiration. 2002; 69(2):165. PMID: 11961431.
      View in: PubMed
    30. Nigro JJ, Bremner RM, Fuller CB, Theisen J, Ma Y, Starnes VA. Perforating Barrett's ulcer resulting in a life-threatening esophagobronchial fistula. Ann Thorac Surg. 2002 Jan; 73(1):302-4. PMID: 11834036.
      View in: PubMed
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