ABSTRACT
The lung is the most common part of the body to be affected by sarcoidosis and there are two main types of presentation: acute self-limiting sarcoidosis and chronic forms of the disease.
Figure 10.1: bilateral hilar lymphadenopathy due to sarcoidosis – stage I
Figure 10.2: bilateral hilar lymphadenopathy with mid zone interstitial infiltration – stage II sarcoidosis
Common features are: • vague, flu-like illness; • arthralgia (joint pains); • painful skin rash on lower legs – erythema nodosum; • enlargement of hilar lymph nodes on chest X-ray. This pattern of disease usually resolves rapidly, with the arthralgia and skin rash resolving in four to six weeks with the help of non-steroidal antiinflammatories and the chest X-ray returning to normal within a year to 18 months. Recurrence is unusual.
