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.
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