A case of POEMS syndrome with mixed hyaline vascular and plasma cell type Castleman's disease.

We report a 43-year-old man who developed progressive ascending sensorimotor polyneuropathy, a solitary bone plasmacytoma originating from a rib and an axillary lymph node with features of Castleman's disease, mixed hyaline vascular and plasma cell type. He was diagnosed of having non-Hodgkin's lymphoma seven years back and was treated. Examination revealed a smooth goitre, thickened skin, white nails, small testes and ankle oedema. Investigations revealed a monoclonal para-proteinaemia of 7.83 g/l and elevated levels of serum TSH and prolactin. In this case the Castleman's disease is localised and the lymphoma preceded the Castleman's disease.