Conclusion:To the diagnosis of intrathoracic sarcoidosis,BMB,TBLB and periphery lymphnodes biopsies are the convenient methods with highly diagnostic and less invasive values in clinical parctice.

• 结论：支气管粘膜活检、TBLB和外周淋巴结活检是简便易行、阳性率高、创伤性小的方法，对结节病的诊断有较高的实用价值。