Risk Indicators of Sarcoidosis Evolution-Unified Protocol

The purpose of this study is to develop prediction models that can prognosticate patients with sarcoidosis using clinical data and biological markers that can be obtained during a clinic visit. Primary Aim/Objective The primary objective of this study is to determine which clinical features measured during a routine clinic visit are risk factors for progression of pulmonary sarcoidosis over the follow-up period in adults with pulmonary sarcoidosis. Secondary Aim/Objectives The secondary objective is to determine if blood biomarkers measured during a routine clinic visit can improve the risk assessment for progression of pulmonary sarcoidosis over the follow-up period. The investigators will measure two types of blood markers to achieve this goal: * Clinically available blood markers that are available in most clinical labs * Blood proteins and gene expression that reflect interferon inflammation and are not currently available as tests in clinical labs