Introduction: Sarcoidosis is defined as a multisystem granulomatous disease of unknown cause. It affects the lung in 90% of cases, but it can affect any part of the body. It can be self-limiting or chronic, with progression to terminal fibrosis. Its diagnosis is based on the compatible clinical-radiological correlation, in addition to the histopathological finding of non-caseating granuloma. Objective: To report a case of sarcoidosis from initial suspicion to diagnostic confirmation and treatment. Description of case: This is a male patient with a dry, dragging cough and unintentional weight loss. After investigation, diagnosis was made. Conclusion: Because it is a disease with diverse symptoms, including asymptomatic individuals or with unspecific symptoms, diagnosis is a challenge in clinical practice. The prognosis is usually favorable, but up to 25% of patients develop severe disability. Therefore, it becomes evident the importance of an early diagnosis for adequate management and continuous and multidisciplinary follow-up to avoid a chronic course. The prognosis is usually favorable, but up to 25% of patients develop severe disability. Therefore, it becomes evident the importance of an early diagnosis for adequate management and continuous and multidisciplinary followup to avoid a chronic and progressive course of the disease.