Ileal MALT lymphoma causing massive gastrointestinal haemorrhage revealed on computed tomography angiography.

Primary MALT lymphomas affecting the ileum are rare, and their presentation with massive haemorrhage exceptional. This report describes such a case. The patient presented with melaena and haemodynamic instability, but normal upper gastrointestinal endoscopy. Subsequent imaging with multi-detector row computed tomography angiography both localised the bleeding source to the ileum and identified the underlying tumour, resulting in considerably earlier introduction of appropriate management. The patient made an excellent recovery and remains in remission.