[Lupus erythematosus and sarcoidosis--coexistence or association?]. / Lupus erythematodes und Sarkoidose--Koexistenz oder Assoziation?

There are not many reports on simultaneous occurrence of the two rare multiorgan disorders lupus erythematosus and sarcoidosis. Since etiopathogenesis in both diseases is not yet fully defined, speculations concerning common immunological pathomechanisms as well as discussions about chance coexistence versus real association remain unsolved. As exemplified by our two patients, diagnostic problems may arise from the broad spectrum of cutaneous manifestations in both diseases as well as the similarity of extracutaneous symptomatology.