Objective: Sarcoidosis is a systemic granulomatous disease of unknown cause. Although the lung is the most common organ affected with sarcoidosis, the disease may involve any part of the body. For an ac- curate diagnosis of sarcoidosis, the multimodality approach including clinical, radiological, and histo- pathological evaluation is recommended. Because of the varied clinical presentations of sarcoidosis, there is not a standard diagnostic algorithm. Sarcoidosis may resolve spontaneously or remain stable or progress. Its treatment is not standardized, and its prognosis can not be easily predicted. In this study, we aimed to highlight clinical and radiological features, laboratory findings, diagnostic procedures, organ involvement and other characteristics of sarcoidosis cases diagno- sed during 7 years time interval. Material and Methods: In this study 70 patients, 58 (82.9%) being female and 12 (17.1%) being male who had the diagnosis of sarcoidosis at our center from 2002 to 2009 were evaluated retrospectively. Results: The mean age of patients was 43.94 (15-68). Diagnostic methods were clinical radiological: 6, me- diastinoscopy: 30, transbronchial biopsy: 16, bronchial mucosa biopsy: 6, skin biopsies: 8, peripheral LAP bi- opsy: 2, spleen biopsy (splenectomy): 1, thoracotomy: 1. Evaluation were done in terms of results of stage, chest radiography, computed tomography, fiberop- tic bronchoscopy and HRCT findings, sedimentation, WBC,hemoglobin, CRP, ACE, blood calcium and 24- hour urine calcium, ECG and holter findings, eye invol- vement, skin and other extrapulmonary organ invol- vement, and pulmonary function test findings, DLCO, PPD and pathology of the patients.