On initial presentation,
sarcoidosisErythema nodosum associated with sarcoidosis
Neurosarcoidosis
Sarcoidosis
Sarcoidosis - close-up
Sarcoidosis on the elbow
Sarcoidosis on the nose and forehead and a type of cancer called lymphoma may look the same, but the
duration of your sarcoidosis rules out the diagnosis of lymphoma. It can, however be confused with other immune diseases such as eosinophilic granuloma, berylliosis or even with what is called atypical mycobacterial disease, which is related to tuberculosis (TB) that is not contagious. The drenching night sweats are worrisome for an infectious disease.
If you are truly getting sicker, as your message suggests, and especially if the clinical worsening is accompanied by x-ray or other objective changes, serious consideration should be given to a biopsy. You and your doctors need to be certain about the diagnosis.
That your breathing tests remain normal is wonderful, given that one of the signs of progressive pulmonary sarcoidosis is a scarring of the lung, with a progressive decline in lung function.