[Angioimmunologic lymphadenopathy evolving into malignant lymphoma and associated with Kaposi's sarcoma].

Angioimmunoblastic lymphadenopathy with dysproteinemia is a recently described entity with severe clinical symptoms and characteristic histological findings in the lymph nodes with occasional malignant transformation. Kaposi's sarcoma is a neoplastic angiomatous growth of unknown origin. Alterations in the immune system have been reported in both diseases. The association of angioimmunoblastic lymphadenopathy with dysproteinemia and Kaposi's sarcoma in the same patient may suggest a common origin for both.