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To define the prognosis for and radiographic presentation of patients with pulmonary amyloidosis.

Retrospective review of the Mayo Clinic experience with biopsy-proven pulmonary amyloidosis from 1980 to 1993.

Tertiary care center.

Patients with pulmonary biopsy specimens showing amyloid deposition.

Medical records were reviewed, and pertinent information was recorded, including demographic data, type of pulmonary biopsy, results of biopsies of nonpulmonary sites and of immunoelectrophoresis, and other clinical, radiographic, and laboratory information necessary for distinguishing localized pulmonary amyloidosis, primary systemic amyloidosis, secondary amyloidosis, and familial amyloidosis …