PMID: 2102736Jun 1, 1990Paper

Pulmonary fibrosis and autoimmune manifestations. A diagnostic problem

Anales de medicina interna : organo oficial de la Sociedad Española de Medicina Interna
V J González RamalloJ S Filgueira Rubio

Abstract

A case of 54-year-old male who, during the development of a pulmonary fibrosis, showed extrapulmonary autoimmune symptoms (polyarthritis and hemolytic anemia), is presented. The antinuclear antibodies and rheumatoid factor positives have been described in up to 30% of the idiopathic pulmonary fibrosis, complicating the differential diagnosis with lung fibrosis caused by alterations of connective tissue. We discuss the prognosis and treatment of this difficult diagnosis.

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