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Melinda Jean Fan Lerwill, MD

Associate Pathologist, Massachusetts General Hospital

Co-director, Breast Pathology Service

Assistant Professor of Pathology, Harvard Medical School

Dr. Lerwill is co-director of the Breast Pathology Service at Massachusetts General Hospital. She lectures in graduate medical education courses in the United States and abroad.

Department of Pathology


  • Cancer Center
  • Gynecologic Oncology
  • Breast Cancer
Clinical Interests
Breast pathology
Gynecologic pathology
Boston: Massachusetts General Hospital
Medical Education
MD, Harvard Medical School
Residency, Massachusetts General Hospital
Board Certifications
Anatomic Pathology, American Board of Pathology
Patient Age Group
Accepting New Patients
Not Accepting New Patients


Dr. Lerwill received her medical degree from Harvard Medical School. She completed her residency in anatomic pathology and a fellowship in breast and gynecologic pathology at Massachusetts General Hospital. Her main research interests include early neoplasia of the breast, biphasic tumors of the breast, use of immunohistochemistry in diagnostic breast pathology, and metastatic lesions to the gynecological tract. Her academic work focuses on practical aspects of diagnostic breast and gynecologic pathology, and she is a frequent speaker at pathology postgraduate courses.


Current areas of clinicopathologic investigation include:

  • Early epithelial neoplasia of the breast

  • Phyllodes tumors and other biphasic lesions of the breast

  • Use of immunohistochemistry as a diagnostic aid in breast pathology

  • Metastatic tumors to the ovary


View my most recent publications at PubMed

Pathology Associates
55 Fruit Street
Boston, MA 02114-2696

Phone: 617-726-2967
Fax: 617-726-7474

Pathology Associates
55 Fruit Street
Boston, MA 02114-2696

Phone: 617-726-2967
Fax: 617-726-7474

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