Introduction:

sarcoidosis is a granulomatous and multisystemic disease of unknown etiology defined as an inflammatory response to an environmental antigen in a genetically susceptible person. Löfgren's syndrome is a form of presentation with stereotypical clinical findings manifested as a triad of acute periarthritis, erythema nodosum and hilar adenopathy.

Case report:

we report a case with the characteristic findings of this clinical form in which, after the multidisciplinary discussion of the findings found in the physical examination and complementary studies, it was decided to start treatment with glucocorticoids without performing mediastinal lymph node biopsy, an invasive and risky procedure.

Conclusions:

the clinical evolution of the patient was favorable and at present he is asymptomatic, without treatment and without evidence of complications or progression towards the chronic form of the disease after three years of evolution.

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