[The changing spectrum of lower gastrointestinal haemorrhages].

Unlabelled: Lower gastrointestinal haemorrhage (LGH) is a frequent reason for medical referral. It has an annual incidence ranging between 17 and 20.5 cases per 100,000 adults and represents 20-30% of all gastrointestinal haemorrhages.

[Liver metastases with unknown primary site].

Patients with unknown primary site cancer represents 5% to 10% of all neoplasia patients. Liver is a favourite site for gastrointestinal tumors, but not only. The adenocarcinomas represents 60% of patients from this group.