[Systemic periarteritis nodosa associated with monoclonal gammapathy. 4 cases]. / Périartérite noueuse systémique associée à une gammapathie monoclonale. Quatre observations.

Four cases of monoclonal gammopathy associated with polyarteritis nodosa are reported. In view of the chronology of events and course of the disease, the connections between protein peak and polyarteritis nodosa can be considered. Management of polyarteritis nodosa is discussed according to the existence of a peak which may originate in myeloma. The part played by plasma exchanges is debated.