# What is ESMO (European Society for Medical Oncology)? Source: https://oncologyistanbul.com/glossary/esmo > A professional medical society that publishes evidence-based clinical practice guidelines used by oncologists across Europe and beyond. ESMO is one of oncology's leading professional organizations, producing peer-reviewed clinical practice guidelines that summarize the evidence-based standard of care for specific cancer types and stages. These guidelines are widely used by tumor boards and oncologists internationally as a common reference point, alongside similar guideline bodies such as the US-based NCCN. ## Authoritative references - [Wikipedia](https://en.wikipedia.org/wiki/European_Society_for_Medical_Oncology) - [Wikidata](https://www.wikidata.org/wiki/Q5413188) Full glossary: https://oncologyistanbul.com/glossary