Keck School Faculty

Yanling Ma

Yanling Ma

Professor of Clinical Pathology
CT 1200 North State Street Off Campus Los Angeles

Performance of breast fine needle aspiration as an initial diagnostic tool: A large academic hospital experience Cytopathology. 2022 11; 33(6):707-715. . View in PubMed

Assessment of ERBB2/HER2 Status in HER2-Equivocal Breast Cancers by FISH and 2013/2014 ASCO-CAP Guidelines JAMA Oncol. 2019 03 01; 5(3):366-375. . View in PubMed

Reprint of: The pathology of pulmonary sarcoidosis: update Semin Diagn Pathol. 2018 Sep; 35(5):324-333. . View in PubMed

Are we overtreating intraductal papillomas? J Surg Res. 2018 11; 231:387-394.. View in PubMed

Unexpected CDH1 Mutations Identified on Multigene Panels Pose Clinical Management Challenges JCO Precis Oncol. 2017 Nov; 1:1-12. . View in PubMed

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. . View in PubMed

Epidermal Growth Factor Receptor, Excision-Repair Cross-Complementation Group 1 Protein, and Thymidylate Synthase Expression in Penile CancerClin Genitourin Cancer. 2016 10; 14(5):450-456. e1. . View in PubMed

Robotic transmural ablation of bladder tumors using high-intensity focused ultrasound: Experimental study Int J Urol. 2016 06; 23(6):501-8. . View in PubMed

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 10 10; 34(29):3518-3528. . View in PubMed

Histological analysis of the kidney tumor-parenchyma interface J Urol. 2015 Feb; 193(2):415-22. . View in PubMed

Inverted lymphoglandular polyp in descending colon Case Rep Pathol. 2015; 2015:646270. . View in PubMed

Small bowel dissemination of coccidioidomycosis Case Rep Pathol. 2015; 2015:403671. . View in PubMed

Robot-assisted laparoscopic high-intensity focused ultrasound for focal therapy of prostate: novel approach Int J Urol. 2014 Dec; 21(12):1289-90. . View in PubMed

Granular cell tumor of the testicular tunica albuginea: a case report Appl Immunohistochem Mol Morphol. 2014 May-Jun; 22(5):395-9. . View in PubMed

Denonvilliers' space expansion by transperineal injection of hydrogel: implications for focal therapy of prostate cancer Int J Urol. 2014 Apr; 21(4):416-8. . View in PubMed

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. . View in PubMed

Percutaneous radiofrequency ablation of virtual tumours in canine kidney using Global Positioning System-like technology BJU Int. 2012 May; 109(9):1398-403. . View in PubMed

Columnar-lined esophagus without intestinal metaplasia has no proven risk of adenocarcinoma Am J Surg Pathol. 2012 Jan; 36(1):1-7. . View in PubMed

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. . View in PubMed

A Rare Case Report of Extensive Polyostotic Gorham's Disappearing Bone Disease Involving the Upper Extremity Case Rep Orthop. 2011; 2011:486756. . View in PubMed

Prediction of patients with acute cholecystitis requiring emergent cholecystectomy: a simple score Gastroenterol Res Pract. 2010; 2010:901739. . View in PubMed

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. . View in PubMed

The pathology of pulmonary sarcoidosis: update Semin Diagn Pathol. 2007 Aug; 24(3):150-61. . View in PubMed

Adenocarcinomas of the distal esophagus and "gastric cardia" are predominantly esophageal carcinomas Am J Surg Pathol. 2007 Apr; 31(4):569-75. . View in PubMed

Body mass index is associated with Barrett esophagus and cardiac mucosal metaplasia Dig Dis Sci. 2006 Sep; 51(9):1589-94. . View in PubMed

A proposal for a new validated histological definition of the gastroesophageal junction Hum Pathol. 2006 Jan; 37(1):40-7. . View in PubMed

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. . View in PubMed

Pleomorphic atypical extraosseous ewing sarcoma in a 25-year-old woman: a cytogenetic diagnosis Appl Immunohistochem Mol Morphol. 2005 Jun; 13(2):201-4. . View in PubMed

Angiomyolipoma of the kidney: expanding disease spectrum demonstrated by 3 cases Appl Immunohistochem Mol Morphol. 2004 Sep; 12(3):277-83. . View in PubMed

Histologic classification of patients based on mapping biopsies of the gastroesophageal junction Am J Surg Pathol. 2003 Jul; 27(7):929-36. . View in PubMed

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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