In April 1952, Dr. Odile Schweisguth opened Europe’s first dedicated pediatric oncology department at Gustave Roussy — a 16-bed unit born out of necessity when a varicella epidemic forced the separation of immunocompromised children from adult patients. What began as a practical response became a turning point for the field.

Schweisguth, who trained under Prof. Robert Debré and later studied alongside Prof. Sydney Farber at Boston’s Jimmy Fund clinic, pioneered a “total care” approach that combined medical treatment with psychological and social support for children and their families — a then-revolutionary concept. She meticulously documented tumors, treatments, and outcomes at a time when the field had little scientific evidence to draw on, laying the groundwork for the evidence-based standards pediatric oncology relies on today.

Her influence extended well beyond Gustave Roussy: in 1967 she founded the Club of Pediatric Oncology, and in 1969 she co-founded the International Society of Paediatric Oncology (SIOP) itself. Guided by her conviction that “no child with cancer should be considered lost beforehand,” she helped drive survival rates from just 10–20% in the 1950s to around 85% today.

Read the full story from Gustave Roussy: Soigner l’enfant autrement : la naissance de la cancérologie pédiatrique à Gustave Roussy