Douglas B. Flieder, MD

Dr. Douglas B. Flieder

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Clinical Locations

  • Fox Chase Cancer Center
    333 Cottman Avenue
    Philadelphia, PA 19111
    Phone: 888-369-2427

Professor, Department of Pathology

Director, Surgical Pathology

Director, Autopsy Pathology

Director, Pathology Fellowship Training Program

Specialties

  • Anatomic Pathology

Areas of Expertise

Lung Cancer, Breast Cancer

Treatment Focus

Surgical pathology with focus on lung and mediastinal diseases.

Distinctions

Treatment Philosophy

As a surgical pathologist, I am responsible for diagnosing diseases and staging the extent of malignancies on varying sized tissue samples procured from patients by clinicians and radiologists.  For example, microscopic examination of a breast core biopsy uncovers the cause of mammographic calcifications, and diagnosing a particular subtype of lung cancer from a surgical specimen ensures that the patient receives appropriate treatment. 

With particular interest in lung diseases, I collaborate with pathologists, clinicians, and researchers at the Center, and participate in national and international studies related to tumors, mostly lung, and pulmonary non-neoplastic diseases.  In addition, I participate in national and international lung pathology societies and educate peers and physicians-in-training.  

Educational Background

  • Fellow, Pulmonary and Mediastinal Pathology, Armed Forces Institute of Pathology, and National Cancer Institute, Laboratory of Human Carcinogenesis, Washington, DC
  • Resident, Anatomic Pathology, Massachusetts General Hospital, Boston, MA
  • Resident, Internal Medicine, New York University/Bellevue Hospital Center, New York, NY
  • MD, University of Rochester School of Medicine and Dentistry, Rochester, NY, 1992 

Certifications

  • American Board of Pathology - Anatomic Pathology

Memberships

  • United States and Canadian Academy of Pathology
  • Pulmonary Pathology Society
  • International Association for the Study of Lung Cancer 

Honors & Awards

  • Philadelphia Magazine Top Doctors, 2024

Research Interests

  • Causes and mechanisms of lung cancer
  • Lung cancer screening 

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