From the soft tissue through the bone to the bone marrow

03.11.2023 – 05.11.2023
Novotel Poznan Centrum Hotel,
pl. Andersa 1,
61-894 Poznan, Poland


1st DAY, Friday, 3rd Nov, 2023
8.00 – 8.45 Registration
8.45 – 09.00 Welcome
9.00 – 09.50 The most common spindle cell tumors of deep soft tissue
9.50 – 10.40 Fat is beautiful
Coffee break
11.00 – 12.00 Classification of MDS and clonal cytopenias
12.00 – 13.00 Subclassification of pleomorphic sarcomas: how and why should we care?
Lunch break
14.00 – 15.00 Cartilaginous tumors
15.00 – 15.45 Myeloproliferative neoplasms
 Coffee break
16.00 – 16.45 Seminar slides #1
16.45 – 17.30 Seminar slides #2
2nd DAY, Saturday, 4th Nov, 2023
08.15 – 09.00 MDS/MPN overlap disorders
09.00 – 10.00 Giant cell lesions of bone
Coffee break
10.15 – 11.15 An approach to round cell sarcomas: from Ewing to CIC::DUX4
11.15 – 12.00 Acute leukemias
12.00 – 13.00 Seminar slides
Lunch break
14.00 – 15.00 Notochordal cell tumors
15.00 – 15.45 Seminar slides #4
 Coffee break
16.00 – 17.00 Seminar slides #5
3rd DAY, Sunday, 5th Nov, 2023
08.00 – 8.45 Unusual vascular tumors: a pattern-based approach
08.45 – 9.30 Non-neoplastic orthopedic pathology
9.30 – 10.15 Seminar slides #6
Coffee break
10.30 – 11.15 Bone marrow lymphomas: small and large
11.15 – 12.00 Gastrointestinal stromal tumors: from KIT to SDH
12.00 – 12.15 Questions and Closing Remarks



Gunnlaugur Petur Nielsen, MD
Dr. G. Petur Nielsen was born in Iceland and earned his medical degree from the University of Iceland. He completed his residency training in anatomic pathology at the Massachusetts General Hospital followed by a fellowship training in surgical pathology and bone and soft tissue pathology at the same institution. He is currently a Pathologist at Massachusetts General Hospital and Professor of Pathology at Harvard Medical School as well as the director of bone and soft tissue pathology and electron microscopy at Massachusetts General Hospital. Dr. Nielsen has published over 250 articles and case reports, several book chapters and textbooks on bone and soft tissue pathology. He has given short courses at the USCAP, lectured throughout the USA and the world. He has received teaching awards and was awarded a Doctoris Honoris Causa at the Universitatea de Medicina si Famacie, Victor Babes in Romania for his contribution and teaching in Timisoara, Romania. His research, teaching and clinical activities focus on bone and soft tissue pathology and electron microscopy.


Jason L. Hornick, M.D., Ph.D.
Dr. Hornick received a BA from Amherst College and an MD/PhD from the University of Southern California. He trained as a resident in Anatomic Pathology and pursued subspecialty fellowships in soft tissue pathology and gastrointestinal pathology at Brigham and Women’s Hospital, where he is the Director of Surgical Pathology and Immunohistochemistry. Dr. Hornick is a Professor of Pathology at Harvard Medical School and a consultant at the Dana-Farber Cancer Institute. Dr. Hornick is currently the Vice President of the United States and Canadian Academy of Pathology (USCAP); he previously chaired the USCAP Education Committee and the USCAP Abstract Review Board and Assignment Committee. Dr. Hornick is also President of the Arthur Purdy Stout Society of Surgical Pathologists. He previously chaired the College of American Pathologists (CAP) Immunohistochemistry Committee and served on the Anatomic Pathology Test Development and Advisory Committee for the American Board of Pathology. Dr. Hornick is the Editor-in-Chief of the 5th series of the AFIP Atlases of Tumor and Non-tumor Pathology. He serves on 14 editorial boards, including the American Journal of Surgical Pathology and Modern Pathology. He is an Associate Editor for Sternberg’s Diagnostic Surgical Pathology, a Regional Editor for Histopathology, an Associate Editor for Advances in Anatomic Pathology and Virchows Archives, and the Consulting Editor for Surgical Pathology Clinics. Dr. Hornick was a member of the expert editorial board for the 4th (2013) and 5th (2020) editions of the WHO Classification of Tumors of Soft Tissue and Bone. He was a member of the Soft Tissue Sarcoma Expert Panel for the American Joint Committee on Cancer (AJCC) and the Sarcoma Analysis Working Group for The Cancer Genome Atlas (TCGA). Dr. Hornick has published over 500 original papers, review articles, and book chapters and edits the textbook Practical Soft Tissue Pathology: A Diagnostic Approach, which is in its 2nd edition. He received the 2012 Arthur Purdy Stout Society of Surgical Pathologists Annual Prize and the 2014 Jack Yardley Investigator Award from the Gastrointestinal Pathology Society. Dr. Hornick sings and plays keyboards for a rock band.


Robert Hasserjian, MD
Dr Robert Hasserjian is Professor of Pathology at Harvard Medical School and a Hematopathologist at Massachusetts General Hospital, where he is Director of the Hematopathology Fellowship Program. Dr Hasserjian received his MD from Harvard and trained in Anatomic Pathology and Hematopathology at Brigham and Women’s Hospital. His research interests are in the discovery of pathologic and genetic features that impact the biology of myeloid and lymphoid neoplasms, particularly myelodysplastic syndromes and acute myeloid leukemia. Dr Hasserjian is an author of over 250 peer-reviewed publications, reviews, and chapters and is the editor of the textbook “Diagnosis of Blood and Bone Marrow Disorders” (Springer, 2018). He the current President of the Society for Hematopathology. He is one of the pathology leaders of the 2022 International Consensus Classification of Myeloid Neoplasms and has served as a Senior Reviewer and author of multiple chapters of the revised 4th edition WHO Classification of Myeloid Neoplasms. He was an expert panel member for the 2022 European LeukemiaNet AML Guidelines. Dr Hasserjian is strongly committed to advancing diagnosis and education in hematopathology and has lectured on the diagnosis of leukemias and other bone marrow disorders at numerous courses and international meetings across the Americas, Europe, and Asia.

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