摘要：Sarcoidosis is a multisystem granulomatous disease with an unknown aetiology. It has a worldwide prevalence, but variable incidence among different geographical regions. The disease affects adults between 20 to 40 years of age and it is slightly more common in women than men. Eyes are affected only in one fourth of cases and they are asymptomatic. There is increased production of TH1 cytokinesis. The TNF is important in propagating inflammation in sarcoidosis. Gallium 67 citrate scan will reveal the chronic course of the disease even if X-ray chest is normal. Local steroid injection or surgical excision of the affected areas may be useful in selected patients.
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