We describe two patients, brother and sister, with identical pathology, whose only clinical presentation was recurrent massive lower digestive tract bleeding. Haemorrhage was due to a complex form of familial venous vascular malformation in the digestive tract, represented by the existence of varices of colon, small intestine and, to a lesser extent, oesophagus and gastric funcus. We have been able to study, examine and treat both patients for 9 and 3 years respectively.
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