Steven C. Meschter, MD, Director of Geisinger Medical Laboratories Cytopathology, Director of Geisinger Cytopathology Fellowship Program
Steven C. Meschter, MD
Director, Cytopathology

Led by Dr. Steven Meschter, the Geisinger Medical Laboratories Cytopathologists provide:

  • State-of-the-art thin layer cervical screening preparation
    Computer-assisted review and reflexive HPV-DNA testing on ASCUS cases
  • Expert review
    Fine needle aspirates, body cavity fluids, urine, and cerebrospinal fluid
  • Advanced ancillary techniques
    Including flow cytometry, immunocytochemistry, and fluorescent in situ hybridization (FISH) which aid in establishing specific diagnoses
  • Prompt, personal consultations
    Direct contact with submitting physicians.  We also provide cytohistologic correlations and maintain an extensive quality assurance program.

The cytopathology laboratories of the Geisinger Medical Laboratories process more than 84,000 cytology cases per year, of which approximately 6,150 are non-gynecologic cases.  The laboratory excels in the technique of fine needle aspiration biopsy and in radiographic or sonographic guided biopsies, with on-site evaluation of material obtained by trained cytopathologists.  GML performs approximately 1,500 FNAs each year.

Gynecologic testing has gone high-tech in GML Cytopathology. The laboratory is fully automated and incorporates computer-assisted primary screening using the FocalPoint computer. This significantly improves the ability to detect premalignant epithelial lesions. CytoPrep

The laboratory routinely processes SurePath and ThinPrep liquid based cervical specimens. These thin layer technologies help to reduce the false negative rate of cervical cytologic screening. The laboratory offers expertise in the interpretation of specimens from multiple collection systems in order to provide flexibility and choice for our many outreach clients. Ancillary testing for high-risk HPV-DNA is offered on both liquid-based platforms.

Geisinger also offers a cytopathology fellowship program, emphasizing the skills and technology available at GML.


Haiyan Liu, MD, Geisinger Medical Laboratories Cytopathology Service
Haiyan Liu, MD
Director, Cytopathology Fellowship Program

Dr. Cletus Baidoo
Cletus Baidoo,MD

Dr. Pramick
Michelle Pramick, MD
Dr. Hongbing Deng
Honbing Deng, MD, PhD
Dr. Abric Rosengrant
Abric Rosengrant, DO
Dr. Renee Frank
Renee Frank, MD
Myra Wilkerson, MD
Myra Wilkerson, MD

Fan Lin, MD, PhD, Geisinger Medical Laboratories Cytopathology Services
Fan Lin, MD. PhD

Hong Ying, MD
Hong Yin, MD
Dr. Rachel Gentile
Rachel Gentile, DO

  Shaobo Zhu, MD
Shaobo Zhu, MD
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