International guidelines

Rest of the world

NCCN clinical practice guidelines in oncology: head and neck cancers [19]

Published by:National Comprehensive Cancer Network

Last published:2025

NCCN clinical practice guidelines in oncology: occult primary[2]

Published by:National Comprehensive Cancer Network (NCCN)

Last published:2024

Cancer of unknown primary: ESMO clinical practice guideline for diagnosis, treatment and follow-up[3]

Published by:European Society for Medical Oncology

Last published:2023

SEOM-GECOD clinical guideline for unknown primary cancer[34]

Published by:Spanish Society of Medical Oncology (SEOM)

Last published:2021

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