The cause(s) of sarcoidosis is likely to be a combination of a conduci
ve soil or sarcoid diathesis invaded by an antigen-driven cell-mediate
d immune response. The antigenic invasion may be mycobacteria and othe
r organisms and/or their chemical constituents. A ten-point plan of ma
nagement is set out so that early diagnosis allows early treatment and
to prevent complicating pulmonary, ocular or renal fibrosis and to pr
event failure of these vital organs. The cause(s) of sarcoidosis conti
nue to elude us to let us piece together possible cofactors which may
provide an etiologic framework. The most likely combination is that of
a conducive soil or sarcoid diathesis invaded by an antigen-driven ce
ll-mediated immune response.