The authors report the case of a 35 year old woman dead of cachexia in the course of a refractory adult coeliac disease. The autopsy revealed multiple lymphadenopathies exclusively found in the small intestinal mesentery; all these lymph nodes were destroyed by an extensive haemorrhagic necrosis. There was neither lymphoma nor cavitation. These original findings are interpreted as the consequence of a localized intravascular coagulation, and probably a step towards cavitation or atrophy.