Association of amyloidosis and lung cancer; a case of small cell lung cancer masked by amyloidosis with 18-fdg uptake

Abstract

Amyloidosis is a rare and fatal disease that occurs with the accumulation of amyloid protein in the organs. The most common presentations are nephrotic syndrome, cardiomyopathy, and unexplained hepatomegaly. We present a case of small cell lung cancer as a result of mediastinoscopic biopsy in a patient who presented with a lung mass and 18-FDG uptake on PET/CT, and amyloidosis was found in the bronchoscopic biopsy result.