Sarcoidosis Presenting with Multiple Lung Parenchymal Nodules

Abstract

Sarcoidosis is a multi-organ disorder of unknown etiology and presents various symptoms, such as fever, fatigue, malaise, and weight loss. It can also present in multiple organs, including lungs, skin, lymph nodes, liver, and bone marrow. It is diagnosed through a combination of clinical presentation, radiological findings, and pathological confirmation. Lungs are frequently involved, and common radiological abnormalities include hilar and mediastinal lymph node enlargement and nodules along the bronchovascular bundles. However, sarcoidosis may present with various patterns on chest films; it is well known as the “the great mimic” [1]. Multiple lung nodules usually alert physicians to rule out metastatic lung disease; however, it is easy to neglect the possibility of pulmonary sarcoidosis under such circumstances. Multiple parenchymal nodular sarcoidosis is estimated to have prevalence of 2.4% to 4%, but is uncommon in Korea [2,3]. Here, we present an unusual case of sarcoidosis with multiple lung parenchymal nodules.