ABSTRACT
Sputum when present needs to be examined for culture and sensitivity and to exclude tuberculosis. Any biopsy specimen should also be cultured.
These radioisotope scans are performed in some centres. Once again, these are non-specific tests, and although they are positive in sarcoidosis and can be used repetitively for monitoring disease activity, they involve a considerable amount of radioactivity and, thus, are of limited value. They should only be repeated if absolutely necessary.
