• Asian Pacific Journal of Cancer Prevention
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• 제16권1호
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• pp.201-204
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• 2015

Background: This study was designed to determine the accuracy of bronchoalveolar lavage fluid cytology (BAL) using histopathologic examination of transbronchial biopsy specimens as the gold standard in diagnosis of lung carcinoma at our center. Materials and Methods: A retrospective study was conducted to investigate a total of 388 patients who were suspected of having lung cancer and had undergone fiberoptic bronchoscopy in Shahid Sadoughi hospital from 2006 to 2011. Lung masses were proven to be malignant by histology. Results: Transbronchial lung biopsy (TBLB) identified malignancy in 183 of the 388 cases, including 48 cases (26.2%) with adenocarcinoma, 4(2.1%) with bronchioloalveolar carcinoma, 47(25.6%)with squamous cell carcinoma, 34(18.5%) with well-diffentiated neuroendocrine carcinoma, 35(19.1%) with small cell carcinoma, 14 (7.6%) with non-small cell carcinoma, and 1 (0.54%) with large cell carcinoma. A total of 205 cases were correctly classified as negative. BAL was also performed in 388 patients; 86/103 cases were consistent with the final diagnosis of lung cancer and 188/285 cases were correctly classified as negative. The sensitivity of BAL was 46.9%(CI:41.9%, 51.8%)) and its specificity was 91.6%(CI:88.8%, 94.3%). BAL had a positive predictive value (PPV) of 83.4%(CI:79.7%, 87.1%) and a negative predictive value (NPV) of 65.8%(CI:61%, 70.5%). The overall accuracy of BAL was 70.5% and the exact concordance was 39%. Conclusions: Our findings suggest that BAL cytology is not sensitive but is a specific test for diagnosis of lung carcinoma. If transbronchial lung biopsy is combined with bronchoalveolar lavage, the positive diagnostic rate will be further elevated.

• Tuberculosis and Respiratory Diseases
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• 제39권1호
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• pp.55-61
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• 1992

연구배경 : 폐장은 악성종양이 가장 잘 전이하는 장기로 대부분은 혈행성으로 하나 또는 다수의 결절형태로 나타나나, 드물게는 림프관을 따라 전파되어 흉부 X선 검사상 미만성 간질성 폐침윤 양상으로 나타나기도한다. 때로는 이러한 림프관성 전이가 원발성암의 증상이 뚜렷치 않으면서 호흡기 증상과 흉부 X선 검사상 미만성 간질성 폐침윤이 보여 다른 간질성 폐질환과의 감별을 요하는데 이러한 경우를 경기관지 폐생검으로 암종성 림프관염이 진단되었던 5예를 경험하였기에 보고하는 바이다. 방법 : 임상소견, 폐기능검사, 흉부 전산화 단층촬영, 기관지 폐포 세척술과 경기관지 폐생검 검사로 진단을 얻었다. 결과 : 종양의 원발병소는 5명중 3명이 위암이었고, 2명은 폐암으로 생각되었다. 폐기능검사상 2명의 환자에서는 폐확산능이 감소된 제한성 환기장애를 보인 반면 한명에서는 폐쇄성 환기장애를 보였다. 기관지 폐포 세척술에서는 4명의 환자에서 모두 림프구 증가소견을 보였고 세포학적 검사상 이중 한명에서는 암세포도 관찰되었다. 경기관지 폐생검 검사에서 림프관에만 국한된 암세포가 관찰되었고, 이들의 cell type은 4명이 선암종이었고, 1명은 편평 상피 암종이었다. 결론 : 드물게, 암종성 림프관염은 원발성암의 증상이 없이 미만성 간질성 폐질환으로 발현될 수 있으며, 경기관지 폐생검 검사로 쉽게 진단되어 질수 있다.

• Tuberculosis and Respiratory Diseases
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• 제57권5호
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• pp.476-479
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• 2004

철폐증은 철분진을 장기간 흡입하여 발생하는 질환으로, 진단은 환자의 용접등의 철분진에 대한 노출력과 흉부 방사선 소견과 함께 폐내 철분진의 축적을 확인한다. 저자들은 기관지 폐포 세척술 및 경피적 폐생검술을 시행하여 철폐증을 진단한 1예를 경험하였기에 보고하는 바이다.

• Journal of Chest Surgery
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• 제28권1호
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• pp.53-58
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• 1995

Open lung biopsy still has important roles for the marking of diagnosis of diffuse infiltrative lung disease even though transbronchial bronchoscopic lung biopsy and percutaneous needle aspiration biopsy gain popularity nowadays. This is clinical retrospective review of the 56 patients with diffuse infiltrative lung disease undergoing open lung biopsy by minithoracotomy from 1984 to Dec. 1992 in the Department of Thoracic & Cardiovascular Surgery of Catholic University Medical College. 27 men and 29 women, aged 17 to 73 year [mean 49 year , were enrolled & divided into 2 groups;Group A consisted of patients with immunocompromised state [n=19 , Group B patients with non-immunocompromised state[n=38 . Pathologic diagnosis was made in 54 cases[96.4% of these two groups and as follows: infectious; 12 patients[21.4% , Neoplastic; 10 patients[17.9% , granulomatous; 4 patients[7.1% , interstitial pneumonia; 12 patients[21.4% , Pulmonary fibrosis; 8 patients[14.3% , others; 3 patients[5.4% , nonspecific; 5 patients[8.9% , and undetermined; 2 patients[3.6% . Therapeutic plans were changed in 39 patients[69.6% after taking of tissue diagnosis by open lung biopsy. Group B has higher incidence of infectious diseases and change of therapeutic plan than the Group A. The postoperative complications developed in 8 cases[14.3% ,and there is no difference of incidence between the 2 groups. 4 patients belongs to group A, died of respiratory distress syndrome [2 and sepsis [2 which were not related with open lung biopsy procedure. In conclusion, open lung biopsy is a reliable method to obtain a diagnosis in diffuse pulmonary infiltrates and can be performed safely, even in acutely ill, immunosuppressed patients.

• Tuberculosis and Respiratory Diseases
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• 제87권1호
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• pp.40-51
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• 2024

Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive, fibrosing interstitial pneumonia with a very poor prognosis. Accurate diagnosis of IPF is essential for good outcomes but remains a major medical challenge due to variability in clinical presentation and the shortcomings of existing diagnostic tests. Medical history collection is the first and most important step in the IPF diagnosis process; the clinical probability of IPF is high if the suspected patient is 60 years or older, male, and has a history of cigarette smoking. Systemic assessment for connective tissue disease is essential in the initial evaluation of patients with suspected IPF to identify potential causes of interstitial lung disease (ILD). Radiologic examination using high-resolution computed tomography plays a pivotal role in the evaluation of patients with ILD, and prone and expiratory computed tomography images can be considered. If additional tests such as surgical lung biopsy or transbronchial lung cryobiopsy are needed, transbronchial lung cryobiopsy should be considered as an alternative to surgical lung biopsy in medical centers with experience performing this procedure. Diagnosis through multidisciplinary discussion (MDD) is strongly recommended as MDD has become the cornerstone for diagnosis of IPF, and the scope of MDD has expanded to monitoring of disease progression and suggestion of appropriate treatment options.

• Tuberculosis and Respiratory Diseases
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• 제56권6호
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• pp.683-686
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• 2004

Pulmonary alveolar proteinosis is a rare disorder in which lipoproteinaceous material accumulates within the alveoli. We report a case of pulmonary alveolar proteinosis in a 41 year old female patient. She complained of a dry cough in the preceding 6 months. She presented symptoms of mild hypoxemia and diffuse infiltration at both lower lung fields. A milky fluid was obtained by bronchoalveolar lavage. We confirmed by light microscopic examinations of the lung tissues obtained by transbronchial lung biopsy. Through several follow-ups, the patients symptoms were mild.

• Tuberculosis and Respiratory Diseases
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• 제74권2호
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• pp.74-78
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• 2013

A 61-year-old woman came to the hospital with dyspnea and pleural effusion on chest radiography. She underwent repeated thoracentesis, transbronchial lung biopsy, bronchoalveolar lavage, and thoracoscopic pleural biopsy with talc pleurodesis, but diagnosis of her was uncertain. Positron emission tomography showed multiple lymphadenopathies, so she underwent endobronchial ultrasound-guided transbronchial needle aspiration of mediastinal lymph nodes. Here, we report a case of malignant pleural mesothelioma that was eventually diagnosed by endobronchial ultrasound-guided transbronchial needle aspiration. This is an unusual and first case in Korea.

• Tuberculosis and Respiratory Diseases
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• 제82권3호
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• pp.201-210
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• 2019

Background: Radial probe endobronchial ultrasound (R-EBUS) is widely used for diagnosing peripheral pulmonary lesions. However, the utility of R-EBUS-guided transbronchial lung biopsy (TBLB) for diffuse lung lesions (DLLs) remains unknown. We designed this study to evaluate the utility of R-EBUS-guided TBLB in DLLs. Methods: This retrospective study enrolled patients admitted from January 2016 to November 2017 who underwent TBLB for DLLs. The R-EBUS-guided TBLB and blind TBLB groups were compared. DLL was defined as any lung disorder that involved more than one segment of the lung. In both the groups, fluoroscopy and guided sheath were not used during TBLB. Results: A total of 127 patients underwent TBLB for DLLs (67 patients in the R-EBUS-guided TBLB group and 60 in the blind TBLB group). There were no differences in age, sex, and comorbid illnesses between the two groups. Furthermore, there was no difference in the TBLB diagnostic yield of the two groups (p=0.660) although more samples were collected from the R-EBUS-guided TBLB group (p=0.003). Procedure time was significantly longer in the R-EBUS-guided TBLB group than in the blind TBLB group (p<0.001). Thus, incidence of pneumothorax was significantly lower in the R-EBUS-guided TBLB group than in the blind TBLB group (p=0.032). Conclusion: Diagnostic yield in DLLs did not differ between the R-EBUS-guided TBLB and blind TBLB groups. Findings show that R-EBUS-guided TBLB in DLLs may reduce risk of pneumothorax.

• Journal of Chest Surgery
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• 제29권7호
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• pp.741-746
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• 1996

다양한 형태로 나타나는 미만성간질성폐질환을 진단하기 위하여는 임상소견, 기관지폐포 세척액검 사, 경기관지 생검 그리고 폐생검 등이 사용되고 있다. 미만성간질성폐질환의 확진을 위한 폐생검에서, 고전적인 개흥적 폐생검에 비해 흥강경을 이용한 폐생검이 흥강 내부의 세밀한 관찰로 적절한 위치의 병변을 채 취할 수 있고, 시술후 수술부위의 통증을 감소시킨다는 등의 장점이 있다. 가톨릭의과대학 흉부외과학 교실에서는 199)년 1월부터 1994년 6월까지 미만성간질성폐질환 환자 20 예에서 흥강경을 이용한 폐생검을 실시하였다. 남녀의 성비는 같았으며, 연령분포는 18세부터 69세 까 지로(평균 연령 48.5세), 50대가 6예로 가장 많았으며, 60대와 40대가 각각 4예씩으로 그 다음이었다. 생 검 부위는 좌하엽이 9예(45%)로 가장 많았으며,우하엽이 7예(35%)로 대부분 양하엽에서 채취되었다 생검 결과는 UIP 가 8예(40%)로 가장 많았고, 속립성 결핵이 4예(20%)로 그 다음이 었으며, 모두 20예에 서 10가지의 서로 다른 진단명이 나왔다. 수술중 개흥술로 전환한 예는 없었으며, 흉관의 제거에는 평균 3.2일이 소요되 었다. 술후 합병증이 발생하거나 潁좡\ulcorner예는 없었다.

• 대한기관식도과학회지
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• 제17권1호
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• pp.9-13
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• 2011

Endobronchial ultrasound (EBUS), which enables visualization of lesions beyond the bronchus, broadens the fields of bronchoscopy. Two types of ultrasound, radial and linear, are used for bronchoscopy. Radial EBUS is performed by inserting an ultrasound mini-probe through the working channel of a flexible bronchoscope. Evaluation of the depth of invasion of early endobronchial lung cancers using radial EBUS is useful in deciding endobronchial treatment. A central tumor limited to within the cartilaginous layer is a good indication for endobronchial photodynamic therapy. EBUS-guide sheath (GS) technique is a sampling method assisted by localization of peripheral lesions using EBUS. The diagnostic yield of EBUS-GS method is higher than that of conventional transbronchial biopsy. High diagnostic values of EBSU-GS method are reported even in small (${\leq}2cm$) peripheral tumors. Linear EBUS is used for endobronchial ultrasound guided transbronchial needle aspiration (EBUS-TBNA). EBUS-TBNA has high diagnostic yields in mediastinal staging of lung cancer even in patients having radiologically early stage lung cancers with normal CT or PET findings in the mediastinum. EBUS is a valuable method in evaluating early endobronchial tumors and peripheral small lung cancers and as well as in mediastinal staging.