MGPO Dermatopathology Associates is a freestanding independent laboratory formed by a joint venture between the Mass General Departments of Dermatology and Pathology. The laboratory is dedicated to providing accurate diagnosis with quick turnaround and receives cases from around the nation.

  • Dedicated staff consists of highly experienced practicing dermatopathologists devoted to patient-focused care.
  • Our physicians have a national and international reputation for excellence in the field with an extensive publication record and both feet planted in the reality of clinical medicine.
  • The world-class facilities and consultative expertise of the pathology department at the Massachusetts General Hospital are available when needed.

Our dermatopathologists and staff strive to provide you and your patients with accurate, concise diagnoses delivered rapidly in order to optimize medical care.

Leadership

Thomas Horn, MD is the medical director of MGPO Dermatolopathology Associates and practices clinical dermatology at Massachusetts General Hospital.  He is board certified in dermatology and dermatopathology.      

Previously, he served as head of the Division of Dermatopathology at the Johns Hopkins Hospital. He is the former Chair of Dermatology at the University of Arkansas for Medical Sciences.

Dr. Horn is recognized both nationally and internationally as an expert in his field.  His particular interests are in inflammatory conditions of the skin, especially clinical-pathologic correlation.

Learn more about our doctors and staff

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