Splenic artery aneurysm presenting with clinical features of a bleeding gastric gastrointestinal stromal tumour.

Gastrointestinal stromal tumours often present with insidious upper gastrointestinal symptoms. Initial definitive diagnosis can be difficult and therefore misdiagnosis is not infrequent. Here we report a case of upper GI bleeding caused by a splenic artery aneurysm that was misdiagnosed as a gastric GIST. This rare presentation of splenic artery aneurysm highlights the potential pitfalls of investigation in upper gastrointestinal disease.