NCIt definition : Nodular localized form of amyloidosis with predominantly thoracic localization (pulmonary
amyloidosis), considered as secondary protein structure disease in which insoluble
protein fibrils accumulate extracellularly. The form of primary amyloid in amyloidoma
is characterized by abnormal deposition of light chain proteins composed of monoclonal
immunoglobulin. Pulmonary amyloidomas are rare and are often found incidentally as
solitary or multiple calcified nodules and masses on chest radiographs in asymptomatic
elderly patients. Cavitation is rare, the prognosis is good.;