top of page

Dr. Mai Gu

Dr. Gu is a certified surgical pathologist and cytopathologist by the American

Board of Pathology and specializes in ultrasound-guided fine needle aspiration

(FNA) and core biopsy of the superficial organs, such as the breast, thyroid,

salivary glands, lymph nodes, and subcutaneous soft tissue of any sites.


Dr. Gu graduated from Beijing University Health Science Center (formerly

Beijing Medical University) in 1988 and received her PhD degree in

Pharmacology & Therapeutics from the School of Medicine, University of

Manitoba in Canada in 1992. She finished her residency training in Anatomic

and Clinical Pathology at the Weill Cornell Medical College in 1997. She then

completed one year of fellowship training in Oncologic Surgical Pathology

followed by one year of fellowship training in Cytopathology, both at the Memorial Sloan-Kettering Cancer Center in New York City. During 1999-2013, Dr. Gu has been a faculty member in the Department of Pathology & Laboratory Medicine at the University of California Irvine Medical Center. She was a clinical professor and director of Cytology Laboratory and Cytopathology Fellowship Program at UCI Medical Center during 2008-2013.


With her extensive clinical experiences of 25 years, Dr. Gu has performed and interpreted tens of thousands of FNA biopsies with diagnostic accuracy of over 95%. She also published dozens of scientific papers in the field of pathology in peer-reviewed medical journals and was invited multiple times to lecture at regional, national, and international meetings. A list of publication links is viewable here.


Dr. Gu is certified by the College of American Pathologists (CAP) in ultrasound-guided FNA. Over fifteen thousands of patients have been referred to her at the FNA clinic of PathCare Diagnostics Inc in the past. She has received unanimous praise from both the referring physicians and the patients because of her compassion for patients, her delicate and gentle biopsy skills, and most of all her accurate immediate diagnosis. As a result, PathCare Diagnostics Inc has become one of the largest specialty centers of interventional cytopathology in Southern California. 


Our Staff

Our friendly and knowledgeable staff is committed to excellence and is dedicated to helping you with your biopsy needs. We speak English, Spanish, and Chinese. We work as a team to make sure that your experience at the FNA Clinic of PathCare Diagnostics Inc exceeds your expectations.

bottom of page