Recurrent Gastrointestinal Stromal Tumour (GIST) in a 35-Year-Old Patient with a History of Glioblastoma: A Rare Case Report Cokorda Bagus Nurparma Putra1*, Gede Agus Eka Rusdi Antara2 Abstract Introduction: Gastrointestinal stromal tumours (GIST) are the most common mesenchymal neoplasms of the gastrointestinal tract with malignant potential. However, uncommonly, they can