Rheumatic manifestations of neoplasia.

The important association of neoplasia and rheumatic disease was reviewed. The literature in the last year included case reports of neoplasia, particularly hematologic, causing arthritis by direct joint involvement. Immunocytologic techniques may help in the diagnosis. The evidence linking dermatomyositis and polymyositis to malignancy was reviewed, although analysis of the literature was hampered by poor documentation and lack of control subjects. HOA may occur secondary to mediastinal or pulmonary metastases from nonbronchogenic malignancies. The important association of hematologic malignancy with vasculitis was highlighted.