Diagnostic Slide Session of the 

American Association of Neuropathologists


Mission Statement

To provide a forum for Neuropathologists to present and discuss challenging cases of diagnostic relevance. The venue will foster debate regarding important interpretive elements in diagnostic neuropathology. Reference slides will be collated and archived for use in diagnostic, teaching and research programs of constituent Neuropathologists.
Charter Members, Diagnostic Slide Session, 2019 Annual Meeting
(Drs. Mark Cohen, Anthony Yachnis, Tessa Hedley-Whyte, Leroy Sharer, Rebecca Folkerth, Arie Perry, Caterina Giannini, Clayton Wiley, Amyn Rojiani, Ed Johnson, Scott Vandenberg, Kathy Newell)
The diagnostic slide session has been a part of the annual meeting of the AANP since 1959.  A complete archive of cases has been created and is kindly hosted by the University of Pittsburgh.  Pull-down tabs are available under the DSS tab above.


64th Diagnostic Slide Session

The deadline for consideration is January 13, 2023.

Contributors will be notified of the decision in early February. The Diagnostic Slide Session, moderated by Dr. Caterina Giannini, will be held during the 99th Annual Meeting in Monterey, CA, on Saturday, June 10th, 2023 at 8:00 p.m.  

Members who have cases they would like to have considered for inclusion should contact: 

Caterina Giannini, MD, PhD
Attention: Pathology
Mayo Medical Laboratories
3050 Superior Dr. NW
Rochester, MN 55901-1195

Phone: 507-284-3887
[email protected] 
Please provide a brief clinical summary and the key diagnostic points by e-mail as a short PowerPoint presentation or Word document. A representative H&E stained slide and one unstained slide should be sent via mail to Dr. Giannini to the above address.  

If selected for presentation, contributors should submit all slides having studies necessary for diagnosis indicating which ones should be made available for whole slide imaging before the session and which, by virtue of giving away the diagnosis, should be posted after the meeting. Whole slide images will be posted to the DSS web site along with the protocol. 

Answers and PowerPoints from last year’s DSS are available on the AANP website as is our virtual library of DSS cases with whole slide images back to 1959!