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The European Working Group of MDS and SAA in children (EWOG-MDS/SAA) is an international cooperative study group, which is dedicated to improving care and outcome of children and adolescents with myelodysplastic syndromes (MDS), predisposition syndromes to myeloid malignancies, juvenile myelomonocytic leukemia (JMML) and other rare myeloproliferative syndromes, and severe aplastic anemia and rare inherited bone marrow failure syndromes. 

The 10th International Symposium on MDS and SAA in Childhood, 2023, Lisbon, Portugal

EWOG Symposium 2023

The 10th International Symposium on MDS and SAA in Childhood will take place in Lisbon, Portugal, from 28-30 September, 2023.

Our host of this meeting is Paula Kjollerstrom and her team. Here you can find their invitation letter for download. Or just click on the image to enlarge the pic of invitation letter to Symposium.

All Details of the meeting will be available on the website https://ewoglisbon2023.com.


We are proud to announce that our highly respected colleague Prof. Dr. Jan Starý received on 16 October 2022 the prestigious Neuron award for his lifetime achievement. Prof. Dr. Starý contributed to the establishment of the ALL IC-BFM 2002 trial in 15 countries on three continents.  He is also one of the co-founders of EWOG-MDS.

The Neuron award is assigned to prominent Czech scientists who work in the Czech Republic and abroad for their long-term work or exceptional discovery that has contributed, in a fundamental manner, to the development of science, strengthened the name of the Czech Republic, and provided inspiration for other members of the scientific community.

Our congratulations to one of the best-known and utmost respected pediatric oncologists in Europe on this accomplishment!
We are so honored to have him on board!

The EWOG community


EWOG-Working Meeting 2022, Frankfurt

The 35th EWOG-MDS/SAA Working Meeting took place in Frankfurt, on the 16th and 17th May 2022. For more details regarding the talks and the protocol please enter the members area.

The paper of Sahoo S., Wlodarski M et al 'Clinical evolution, genetic landscape and trajectories of clonal hematopoiesis in SAMD9/SAMD9L syndromes', has been published in Nature Medicine on 07 October 2021. The publication is a milestone for our EWOG group, thanks to all who have contributed to it.

The DOI number for the paper is 10.1038/s41591-021-01511-6. Once your paper has been published online, it will be available at the following URL: https://www.nature.com/articles/s41591-021-01511-6

The 9th International Symposium on MDS and SAA in Childhood, 2021, Athens

Dear Colleagues and Friends,

we wish to thank you for your participation in the 9th Symposium of EWOG-MDS/EWOG-SAA, which was held as a Hybrid Symposium on September 30 to October 2, 2021 in Athens. We were delighted to host over 190 participants from around the world in a very stimulating and enriching program.

In particular, we are grateful to the European Joint Programme Rare Diseases  and to GATA2-HuMo Consortium to contribute with the GATA2 Workshop to the success of the Symposium. In addition, all abstracts submitted will be published in a special edition of Cellular and Molecular Pediatrics and already accessible https://molcellped.springeropen.com/articles/supplements/volume-8-supplement-1.

JMML Meeting January 2020, Freiburg

The internal JMML Meeting took place in January 2020 (21.-22.1.2020) in Freiburg, Germany. Detailed information (talks, protocol, some pics) can be found in the members area. Topis were among others Implications of the JMML NGS panel for genetic classification, NGS and JMML subclones,  DNA Methylation, RNA Studies, and the outcome after 1st and 2nd HSCT.