The intussusception in adults is very rare. Symptoms are atypic and di
agnosis is difficult. We present the case of an 85-year-old female adm
itted for vague intermittent diffuse abdominal pain since 3 months, wi
th episode of diarrhoea. A mobile mass was palpable in the right iliac
fossa. The barium transit demonstrated a filiform stenosis of the las
t segment of ileum in the caecum. Scanner showed a ''target mass''. An
ileal intussusception on caecal tumour was suggested and confirmed by
laparotomy. This entity is confronted with the literature reports. Th
e aetiology, clinical presentation, diagnosis and treatment are discus
sed.