A 67 year old man presented with a polyarteritis nodosa-like syndrome with renal, pulmonary joint and neurological involvement during the 'preleukaemic' stage of monocytic leukaemia. The association between these two conditions is discussed.
A 38 year old woman presented with widespread polyarteritis nodosa a few years after the onset of HLA-B27 positive spondyloarthritis. The concomitant coexistence of these two disorders suggests a possible association in this genetically susceptible subject.