Companion Society Meetings

American Association of Neuropathologists

Updates on Pituitary Tumors, WHO 4th Edition,
and Diagnostic Approach to Vascular Lesions in Surgical Neuropathology

Saturday, March 17, 2018 - 7:00 pm - 10:00 pm

Session Credits:

3 CME and 3 SAMs


Bette K. Kleinschmidt-DeMasters, MD, University of Colorado, Aurora, CO
Christopher Dunham, MD, University of British Columbia, Vancouver, BC, Canada

Course Description:

As our understanding of the biology of the organs and their various lesions grows, frequent updates are made to the nomenclature and classification of the disease processes. One such recent update in neuropathology is for pituitary gland tumors and is included in the WHO Classification of Tumours of Endocrine Organs, 4th Edition. These updates affect the diagnostic approach to pituitary adenomas and their classification, as well as prognoses. Therefore, it is only very timely that these changes are reviewed from a practical diagnostic perspective to bring us up to date, to point out the pitfalls and practical implications of the new classification. In addition, in concert with the traditional theme-based approach for a more focused discussion, vascular lesions of the nervous system will be discussed with particular emphasis on vasculitides and other lesions of the central nervous system mimicking vasculitis. Their differential diagnoses from neoplastic proliferations, such as lymphomas, and other vasculopathies that are problematic will be reviewed in the context of brain biopsy interpretation in surgical pathology practice. The discussion will also include vascular malformations seen in diagnostic surgical pathology.

Learning Objectives:

Upon completion of this educational activity, the learner will be able to:

  • Understand the major recent changes in the classification of pituitary adenomas together with their diagnostic and prognostic implications
  • Diagnose and classify vasculitides that involve the central nervous system
  • Develop a differential diagnostic approach to vascular lesions of the central nervous system with appropriate work-up for various clinicopathologicentities
  • Differentiate inflammatory conditions from neoplastic infiltrations and vasculitides from their mimickers


7:00 PM Opening Remarks
7:10 PM Updates on Pituitary Tumors: WHO Classifications of Tumors of the Pituitary Gland, 4th Edition
M. Beatriz S. Lopes, MD, PhD, University of Virginia School of Medicine, Charlottesville, VA
7:50 PM Vasculitides in Surgical Neuropathology Practice
Anthony T. Yachnis, MD, University of Florida, Gainesville, FL
8:30 PM Central Nervous System Lesions Mimicking Vasculitis
Caterina Giannini, MD, PhD Mayo Clinic, Rochester, MN
9:10 PM Miscellaneous Vasculopathies and Vascular Malformations Encountered in Surgical Neuropathology Practice
Bette K. Kleinschmidt-DeMasters, MD University of Colorado, Aurora, CO


Continuing Medical Education and Maintenance of Certification

The United States and Canadian Academy of Pathology is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

The United States and Canadian Academy of Pathology designates this live activity for a maximum of
AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

The USCAP is approved by the American Board of Pathology (ABP) to offer Self-Assessment credits (SAMs) for the purpose of meeting the ABP requirements for Maintenance of Certification (MOC). Physicians must take and pass the post-test in order to claim SAMs credit.

Physicians can earn a maximum of 3 SAM credit hours.


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