Periarterite noueuse et cancer du poumon une nouvelle observation

ABSTRACT

The cases of vasculitis associated to malignant tumour are uncommon, their course which is often parallel suggests a direct link between them. we report the observation of periarteritis nodosa associated with a lung cancer discovered in the following of vasculitis; whereas the course is favorable in 83 years old man without particular history. The frequency of neoplasia with vasculitis is estimated between 3 and 8% and periarteritis nodosa can't be a paraneoplastic syndrome. Lung and colic tumours are the most frequent reported of the solid tumours. The delay of appearance of vasculitis varries from 25 months before to 9 months after cancer diagnosis. There are many factors either some treatment, the neoantigens involve the formation of complexes immuns, lymphokines ands some vasoactive substances