The American Society of Dermatopathology

Elson B. Helwig Memorial Lecture

Beyond Dermatofibroma: A Contemporary Update of Cutaneous Mesenchymal Tumors

Saturday, October 23
8:00 a.m. - 9:00 a.m. Central Time

AMA PRA Category 1 CreditTM

The Elson B. Helwig Memorial lectureship is awarded in recognition of excellence in the realm of diagnostic dermatopathology and for significant contribution to the dermatopathology literature and the education of fellows and colleagues.

Jason L. Hornick, MD, PhD

Professor of Pathology, Harvard Medical School
Director of Surgical Pathology and Immunohistochemistry
Brigham & Women's Hospital


Although dermatofibromas are by far the most common cutaneous mesenchymal tumors, a vast array ‎of other mesenchymal neoplasms may also be encountered in the skin, ranging from trial benign ‎lesions to highly aggressive sarcomas. Our understanding of such neoplasms has evolved considerably ‎with the discovery of disease-defining molecular genetic alterations and the development of much ‎more specific diagnostic markers. This lecture will provide an update on cutaneous mesenchymal ‎tumors, with an emphasis on a pattern-based diagnostic approach and application of novel ‎immunohistochemical markers.‎

Learning Objectives
Upon completion of this lecture, participants should be able to:‎
  • Utilize pattern-based diagnostic approach to differentiate between histologic features of diverse ‎cutaneous mesenchymal tumors.‎
  • Apply immunohistochemistry to improve diagnostic accuracy of cutaneous mesenchymal tumors.‎
  • ‎Employ molecular genetic testing for selected cutaneous mesenchymal tumors.‎

Previous Lecturers

2020 Dirk M. Elston, MD
2019 Richard A. Scolyer, BMedSci, MBBS
2018 James W. Patterson, MD
2017 Elaine S. Jaffe, MD
2016 Sharon W. Weiss, MD
2015 Timothy H. McCalmont, MD
2014 Wilma F. Bergfeld, MD, FACP, FAAD
2013 Luis Requena, MD, PhD
2012 Boris C. Bastian, MD, PhD
2011 Heinz H. Kutzner, MD
2010 Helmut Kerl, MD
2009 Amy S. Paller, MD
2008 Paul A. Khavari, MD, PhD
2007 Steven Rosenberg, MD, PhD
2006 Jouni Uitto, MD, PhD
2005 Lorenzo Cerroni, MD
2004 Christopher D.M. Fletcher, MD, FRCPath
2003 Phillip H. McKee, MD
2002 Jean L. Bolognia, MD