Final answer:
Sarcoidosis is a chronic multisystem inflammatory disease that primarily affects the lungs and lymph nodes.
Step-by-step explanation:
Sarcoidosis is a chronic multisystem inflammatory disease that primarily affects the lungs and lymph nodes but can also involve other organs. It is characterized by the formation of granulomas, which are small clusters of immune cells that can cause tissue damage.
The symptoms of sarcoidosis can vary depending on the organs involved, but commonly include cough, shortness of breath, fatigue, fever, and enlarged lymph nodes.
Lab values that can be helpful in diagnosing sarcoidosis include an elevated angiotensin-converting enzyme (ACE) level, hypercalcemia, and an increased number of lymphocytes in bronchoalveolar lavage (BAL) fluid.