Sarcoidosis with multiple organ involvement emerging as Löfgren's syndrome.

A 52-year-old woman was admitted because of high-grade remittent fever, erythema nodosum, and arthritis which had been lasting two months. Antibiotics did not improve her condition. A chest CT scan examination revealed bilateral hilar and mediastinal adenopathy and multiple nodular opacities in the bilateral lungs. The wedge biopsy of the right lower lobe using video-assisted thoracoscopy presented the histological findings of sarcoidosis. Finally, this case fulfilled the criteria of Löfgren's syndrome. Due to the uncovered cardiac involvement, the systemic glucocorticoid therapy had to be initiated. This case suggests that atypical forms of sarcoidosis should be kept in mind as well, when facing cases with unknown fever.