Management of biliary tract cancers in early‐onset patients: A nested multicenter retrospective study of the ACABI GERCOR PRONOBIL cohort

Accumulating data has shown the rising incidence and poor prognosis of early-onset gastrointestinal cancers, but few data exist on biliary tract cancers (BTC). We aimed to analyse the clinico-pathological, molecular, therapeutic characteristics and prognosis of patients with early onset BTC (EOBTC, age ≤50 years at diagnosis), versus olders.