Clinical Research Directory

Inclusion Criteria: * Radiologic evidence of mediastinal and/or hilar lymphadenopathy * Attending radiologist or pulmonologist reports a possible diagnosis of sarcoidosis * Age 18 years or older Exclusion Criteria\*: These are the characteristics that a participant must NOT have in order to be eligible to participate in the study. Order Number Criteria * Severe pulmonary hypertension * Inability to undergo general anesthesia * Severe coagulopathy or bleeding diathesis * Previously diagnosed sarcoidosis * Patient presently taking clopidogrel * Patient deemed to be high risk for general anesthesia per anesthesiologist * Hemodynamic instability * Mediastinitis * Acute Hypercarbic Respiratory Failure (pCO2 \>55mmHg)