Abstract
Amyloidosis is a spectrum of diseases, in which various proteins which are a usual component of plasma are deposited as insoluble beta-pleated sheets extracellularly, disrupting the function of various organs. Amyloid light-chain amyloidosis occurs due to the deposition of proteins, derived from immunoglobulin light chains, routinely manifesting with multisystem involvement. Pulmonary involvement is seen in about 50% of cases [1]. Three common patterns of amyloidosis on computed tomography (CT) chest are tracheobronchial, nodular parenchymal, and diffuse alveolar septal variety. Here we report a case of amyloidosis involving tracheobronchial tree due to localized deposition of amyloid. Knowledge about pulmonary amyloidosis is important due to nonspecific findings in the CT chest and its poor prognosis.
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