International Collaboration on Cancer Reporting (ICCR)

Invitations to participate in ICCR Reporting Initiatives

2024 Draft 2nd edition ICCR Tumours of the Central Nervous System (CNS) dataset available for review 

We are writing to invite the International Academy of Pathology (IAP) to review the draft 2nd edition International Collaboration on Cancer Reporting (ICCR) Tumours of the Central Nervous System (CNS) dataset.


The dataset is split into three sections:

Histological assessment of CNS specimens. It is intended that this section should be used in conjunction with the other sections. A full diagnosis of CNS tumours should ideally conform to the 2021 World Health Organization (WHO) Classification of Tumours of the CNS which requires integration of elements from histological and ancillary analyses. However, some 2021 CNS WHO entities can be diagnosed solely on the basis of histological features and in this situation only this section needs to be completed.

Molecular information for CNS specimens. This section is to be used for those tumours in which molecular or immunohistochemistry information is captured for diagnostic purposes.

Final integrated report/diagnosis for CNS specimens. In many situations, 2021 CNS WHO diagnoses integrate histological and molecular information and this section is intended for the capture of that final diagnosis.


The ICCR has been formed to develop common, internationally standardised and evidence-based cancer datasets for surgical pathology specimens. Using the best international approaches, and leveraging the knowledge and experience of world-leading pathologists, the ICCR aims to ensure that all cancer reports, will be of the same high quality; ensuring completeness, consistency, clarity, conciseness and above all, clinical utility. The ICCR has published 62 cancer datasets to date which are available at:


The draft dataset is available for comment until Friday 23rd February 2024 at: To provide feedback please email any comments together with your name and country to


It would be greatly appreciated if you could disseminate this notification to any other interested parties.


This dataset has been kindly sponsored by Princess Máxima Center for pediatric oncology and Stichting STOPhersentumoren.


We anticipate the dataset will be published in mid-2024.


If you have any questions, please do not hesitate to contact me at


Kind regards,



Gina Green

ICCR Dataset Project Officer

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2024 ICCR Paediatric datasets published

We are pleased to let you know that the suite of ICCR Paediatric datasets are now published and available at:



We have also recently updated the Lung cancer, Carcinoma of the cervix and Carcinoma of the vulva datasets.


A list of all published ICCR datasets may be found here:



Please share this news among your members.



Kind regards,

Gina Green

ICCR Dataset Project Officer

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