Introduction : Gastrointestinal stromal tumors (GIST) are the commonest tumours of mesenchymal origin in the gastrointestinal tract, yet they are relatively rare compared to tumours of epithelial origin. Presenting symptoms are often vague and as such, they may mimic other solid tumours of the abdomen.

Methods : Case Report

Results : A 62 year old lady presented with a 3 month history of progressively enlarging abdominal mass. A contrasted Computed Tomography revealed a large mass which appeared to arise from the left lobe of the liver. Intra-operatively, the tumour was however noted to arise from the gastric body with infiltration of the liver. Histology confirmed a gastrointestinal stromal tumour.

Conclusions : GIST although rare, should be considered when encountering large intra-abdominal masses of unsure origin.