Pulmonary sarcoidosis is a condition that causes tiny groups of immune cells to clump in your lungs. These groups of cells form swollen, inflamed lumps called granulomas. Granulomas can make it hard ...

Multiple sclerosis (MS) can cause a wide variety of symptoms. You may have brain fog, weakness or numbness in an arm or leg, an unsteady walk, changes to how you see or speak, or fatigue. MS symptoms ...