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  • Title: [Advances in endoscopic diagnosis of sarcoidosis].
    Author: Filarecka A, Gnass M, Obrochta A, Szlubowska S, Kocoń P, Czyżewski D, Pankowski J, Szlubowski A.
    Journal: Pol Merkur Lekarski; 2018 Mar 27; 44(261):113-117. PubMed ID: 29601559.
    Abstract:
    A diagnosis of pulmonary sarcoidosis is based on the assessment of clinical outcome, radiology findings and detection of noncaseating granulomas in cytology or histology specimens. Cytological material obtained from enlarged lymph nodes and/or histological specimens from bronchial mucosa and lung tissue are examined according to sarcoidosis stage. The most available are standard bronchoscopic methods as conventional transbronchial needle aspiration (cTBNA), endobronchial biopsy (EBB) and transbronchial lung biopsy (TBLB) both performed with use of forceps. The new endoscopic techniques introduced to pulmonary diagnostics are: endobronchial ultrasoundguided transbronchial needle aspiration (EBUS-TBNA) and endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) or if used by the ultrasound bronchoscope (EUS-b-FNA) and transbronchial lung cryobiopsy (TBLC). Considering a dynamic improvement in cytology assessment techniques (processed as cytology smears and cell blocks) the endoscopic methods with use of fine needle aspiration biopsy of enlarged lymph nodes became a method of choice in sarcoidosis with lymphadenopathy, and published data suggest a higher diagnostic yield when performed under endosonographic guidance. The optimal approach (transbronchial or transesophageal) and the selection of mediastinal lymph node stations considered for biopsy still need evaluation. Also TBLC, successfully used in the diagnosis of other diffuse parenchymal lung diseases, requires more experiences and trials to establish its role in diagnosis of pulmonary sarcoidosis.
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