# IEO (European Institute of Oncology)

Source: https://onco.cc/institutions/ieo-milan/  
OnCo record `ieo-milan` (Institution). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

Founded by Umberto Veronesi, pioneer of breast-conserving surgery and sentinel node biopsy.

## Summary

IEO, the European Institute of Oncology in Milan, was founded by Umberto Veronesi, the surgeon who pioneered breast-conserving surgery and sentinel lymph node biopsy, and it ranks eleventh in the Newsweek/Statista World's Best Specialized Hospitals list for oncology. Its strengths are breast surgery de-escalation, early-phase drug development under Giuseppe Curigliano, and HER2-low and antibody-drug conjugate research, with Paolo Veronesi, Roberto Orecchia, Nicoletta Colombo and Pier Giuseppe Pelicci among its leaders. OnCo links it to triple-negative and HER2-positive breast cancer, to Fondazione AIRC, and to the Organisation of European Cancer Institutes. How much further surgery and radiotherapy can safely be scaled back in early breast cancer is the question it keeps testing. Its breast programme is the one to read.

## Fields

- Kind: Institution
- Last checked: 2026-09-04
- City: Milan, IT
- Type: cancer-center
- Website: https://www.ieo.it

## Sources

- Official website: https://www.ieo.it

## Connected records

- cancers: [HER2-positive breast cancer](https://onco.cc/cancers/breast-her2-positive/), [Triple-negative breast cancer (TNBC)](https://onco.cc/cancers/tnbc/)
- technologies: [Sentinel lymph node biopsy](https://onco.cc/technologies/sentinel-node/)
- people: [Carlo Cimbri](https://onco.cc/people/carlo-cimbri/), [Giuseppe Curigliano](https://onco.cc/people/giuseppe-curigliano/), [Nicoletta Colombo](https://onco.cc/people/nicoletta-colombo/), [Paolo Veronesi](https://onco.cc/people/paolo-veronesi/), [Pier Giuseppe Pelicci](https://onco.cc/people/pier-giuseppe-pelicci/), [Roberto Orecchia](https://onco.cc/people/roberto-orecchia/)
- trials: [Milan I (quadrantectomy against radical mastectomy)](https://onco.cc/trials/milan-i/), [SOUND (Sentinel Node vs Observation After Axillary Ultra-Sound)](https://onco.cc/trials/sound/)
- institutions: [Fondazione AIRC per la ricerca sul cancro](https://onco.cc/institutions/airc/), [Fondazione IRCCS Policlinico San Matteo](https://onco.cc/institutions/policlinico-san-matteo/), [IRCCS Istituto Romagnolo per lo Studio dei Tumori 'Dino Amadori' (IRST)](https://onco.cc/institutions/irst-meldola/), [IRCCS Ospedale San Raffaele](https://onco.cc/institutions/san-raffaele/), [Istituto Oncologico Veneto IRCCS](https://onco.cc/institutions/iov-veneto/), [Organisation of European Cancer Institutes](https://onco.cc/institutions/oeci/)

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