Idiopathic conditions, such as inflammatory pseudotumor, Kimura's disease, and Castleman's disease, can also present with a neck mass.22 â 24 A neck mass may also be the presenting symptom of sarcoidosis.25
Many people with sarcoidosis don't have type 1 diabetes as well, so it is unlikely that sarcoidosis caused it all alone. Most people who are going to manifest type 1 diabetes are diagnosed in childhood or their teenage years. Occasionally it will not manifest until adulthood.
Researchers believe sarcoidosis is associated with an abnormal immune system response, but what triggers this response is not known. Nor do doctors know whether heredity, environment, or lifestyle affects the development, severity, or length of the disease. These are questions that researchers are trying to answer.