• Tuberculosis and Respiratory Diseases
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• 제43권5호
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• pp.746-754
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• 1996

목적: 미만성 간질성 폐질환은 공통의 임상 양상, 방사선 소견, 폐기능 장애 소견을 갖는, 무수히 많은 원인 질환들로 구성되어 있어 개흉폐생검 등의 조직학적 진단이 표준으로 받아들여지고 있지만 관혈적 진단 방법이라는 단점이 있다. 고해상도 전산화단층촬영은 해상력을 높이고 음영의 중첩 효과를 최소화함으로써 폐간질의 미세한 변화까지 관찰할 수 있게 하겨 미만성 간질성 폐질환의 진단에 매우 유용한 진단 방법이다. 저자들은 이런 고해상도 전산화단층촬영을 한 환자에서 개흉폐생검을 시행하여 진단 및 치료에 어느 정도의 추가 이익을 얻을 수 있었는지 알아보고자 하였다. 방법: 1988년 3월부터 1994년 7월까지 미만성 간질성 폐질환의 진단적 목적으로 개흉폐생검을 시행한 30예의 환자들을 대상으로 후향적으로 고해상도 전산화단층촬영의 진단과 개흉폐생검외 진단 결과를 비교하고 각 환자들의 치료 방침을 조사하였다. 결과: 고해상도 전산화단층촬영은 28예에서 시행되었는데 이 중 22예(78.6%)에서 특이적 진단이 가능하였고 22예 중 20예에서는 개흉폐생검에 의해 같은 진단으로 확진되었다. 나머지 2예 중 1예는 개흉폐생검 결과가 비특이적이었다. 개흉폐생검은 전체 30예 중 25예(83.3%)에서 특이적 진단을 하였다. 또한 고해상도 전산화단층촬영으로 특이 진단이 불가능하였다. 6예 중 5 예(83.3%)에서 특이적 진단을 하였다. 전체 30예 중 단지 2예에서만 치료 방침의 결정적인 변화가 있었다. 결론: 미만성 간질성 폐질환 환자에서 고해상도 전산화단층촬영이 특이적 진단을 강력히 시사하는 경우에 개흉폐생검의 펼요성 여부에 대해서는 재검토가 필요할 것으로 생각된다.

• Tuberculosis and Respiratory Diseases
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• 제74권1호
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• pp.23-27
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• 2013

Multicentric Castleman's disease (CD) is a rare atypical lymphoproliferative disorder, which is characterized by various systemic manifestations. Some patients with multicentric CD may have concomitant lung parenchymal lesions, for which lymphoid interstitial pneumonia (LIP) is known to be the most common pathologic finding. Follicular bronchiolitis and LIP are considered to be on the same spectrum of the disease. We describe a case of multicentric CD with pulmonary involvement, which was pathologically proven as follicular bronchiolitis.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제18권4호
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• pp.286-291
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• 2015

Ulcerative colitis (UC) is a chronic idiopathic inflammatory bowel disease. Mesalizine for the first-line therapy of UC has adverse effects include pancreatitis, pneumonia and pericarditis. UC complicated by two coexisting conditions, however, is very rare. Moreover, drug-related pulmonary toxicity is particularly rare. An 11-year-old male patient was hospitalized for recurring upper abdominal pain after meals with vomiting, hematochezia and exertional dyspnea developing at 2 weeks of mesalizine therapy for UC. The serum level of lipase was elevated. Chest X-ray and thorax computed tomography showed interstitial pneumonitis. Mesalizine was discontinued and steroid therapy was initiated. Five days after admission, symptoms were resolved and mesalizine was resumed after a drop in amylase and lipase level. Symptoms returned the following day, however, accompanied by increased the serum levels of amylase and lipase. Mesalizine was discontinued again and recurring symptoms rapidly improved.

• Tuberculosis and Respiratory Diseases
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• 제77권3호
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• pp.145-148
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• 2014

Valproic acid is one of the most common antiepileptic drugs used for the treatment of several seizure disorders. A 20-year-old man presented with a sudden decline of consciousness. He had a neurosurgery operation for intracranial and intraventricular hemorrhage. Following surgery, antiepileptic medication was administered to the patient in order to control his seizure events. On valproic acid treatment, he began to complain of fever and dyspnea. His symptoms persisted despite receiving empirical antibiotic treatment. All diagnostic tests for infectious causes were negative. A high-resolution computed tomography scan of the chest revealed predominantly dependent consolidation and ground-glass opacities in both lower lobes. The primary differential was drug associated with interstitial lung disease. Therefore, we discontinued valproic acid treatment and began methylprednisolone treatment. His symptoms and radiologic findings had significantly improved after receiving steroid therapy. We propose that clinicians should be made aware of the potential for valproic acid to induce lung injury.

• 대한방사선기술학회지:방사선기술과학
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• 제44권2호
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• pp.91-100
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• 2021

High-Resolution thoracic CT (HRCT) is a scanning protocol in which thin slice thickness and sharpness algorithm are utilized to enhance image resolution for diagnosis and assessment of interstitial lung disease (ILD). This examination is sometimes performed in both supine and prone position to improve sensitivity to early changes of these conditions. Anatomical structures (the size of lung field and heart and descending aorta) of 150 patients who underwent HRCT were retrospectively compared. HRCT had been conducted in two positions (supine and prone). Data were divided into five groups according to patient body weights (from 40 to more than 80kg, 10kg intervals, 60 patients/each group). Quantitative analysis was utilized in Image J program. In the supine position defined as the control group, the average values of lung fields and heart size and aorta were compared with the prone position defined as the experimental group. The size of the lungs was found to be higher in the supine position, and it was confirmed that there was a statistically significant difference in patients over 70 kg (p<0.05). In addition, both sizes of the heart and descending aorta were larger in prone position, but in the case of the heart, there was no correlation with the presence or absence of ILD disease (p>0.05). Also, the area of prone in the descending aorta was higher than supine position, but there was no statistically significant difference between supine and prone position (p>0.05). In conclusion, when the severity of ILD disease was severe, there was no statistically significant difference in the area difference between supine and prone position, so it is considered that it will be helpful in diagnostic decision.

• Tuberculosis and Respiratory Diseases
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• 제51권4호
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• pp.390-394
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• 2001

Lymphocytic interstitial pneumonia(LIP) is characterized by a massive infiltration of the interstitium of the lung by mature lymphocytes, plasma cells and reticuloendothelial cells. LIP may be associated with autoimmune diseases including Sj$\check{o}$grens syndrome, SLE, myasthenia gravis, pernicious anemia, autoimmune hemolytic anemia, and HIV or an EB virus infection. There is a possibility of LIP progressing to a pulmonary or systemic lymphoma. The therapeutic response to corticosteroids and/or immunosuppressive drugs varies. Here we report a case of LIP that was diagnosed by an open lung biopsy and clonality study. The patient was a 36 year-old man without autoimmune disease or HIV infection. He was admitted as a result of severe hypoxemia showing $PaO_2$ of 48.3mmHg. The patient was treated with corticosteroids after the diagnosis and had fully recovered without a sequalae or relapse.

• Korean Journal of Radiology
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• 제22권3호
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• pp.476-488
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• 2021

Objective: We aimed to develop a deep neural network for segmenting lung parenchyma with extensive pathological conditions on non-contrast chest computed tomography (CT) images. Materials and Methods: Thin-section non-contrast chest CT images from 203 patients (115 males, 88 females; age range, 31-89 years) between January 2017 and May 2017 were included in the study, of which 150 cases had extensive lung parenchymal disease involving more than 40% of the parenchymal area. Parenchymal diseases included interstitial lung disease (ILD), emphysema, nontuberculous mycobacterial lung disease, tuberculous destroyed lung, pneumonia, lung cancer, and other diseases. Five experienced radiologists manually drew the margin of the lungs, slice by slice, on CT images. The dataset used to develop the network consisted of 157 cases for training, 20 cases for development, and 26 cases for internal validation. Two-dimensional (2D) U-Net and three-dimensional (3D) U-Net models were used for the task. The network was trained to segment the lung parenchyma as a whole and segment the right and left lung separately. The University Hospitals of Geneva ILD dataset, which contained high-resolution CT images of ILD, was used for external validation. Results: The Dice similarity coefficients for internal validation were 99.6 ± 0.3% (2D U-Net whole lung model), 99.5 ± 0.3% (2D U-Net separate lung model), 99.4 ± 0.5% (3D U-Net whole lung model), and 99.4 ± 0.5% (3D U-Net separate lung model). The Dice similarity coefficients for the external validation dataset were 98.4 ± 1.0% (2D U-Net whole lung model) and 98.4 ± 1.0% (2D U-Net separate lung model). In 31 cases, where the extent of ILD was larger than 75% of the lung parenchymal area, the Dice similarity coefficients were 97.9 ± 1.3% (2D U-Net whole lung model) and 98.0 ± 1.2% (2D U-Net separate lung model). Conclusion: The deep neural network achieved excellent performance in automatically delineating the boundaries of lung parenchyma with extensive pathological conditions on non-contrast chest CT images.

• Tuberculosis and Respiratory Diseases
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• 제71권6호
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• pp.470-475
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• 2011

So far more than 350 drugs have been reported to be the cause for lung injury and the incidence tends to increase. Although infiltrative lung disease is the most common pattern of drug-induced lung injury, it can appear in the form of alveolar changes, vasculitis and other injury. Herbal medicine also has been known as a cause for interstitial pneumonitis, but it is difficult to identify the key herbal medicine because of the complex components of the contents. Till date, there is no report of pneumonitis caused by golden thread. Here we report a case of a 54-year-old male who developed interstitial pneumonitis with acute liver injury caused by herbal medicine made from golden thread.

• Tuberculosis and Respiratory Diseases
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• 제62권2호
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• pp.134-139
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• 2007

Gefitinib은 진행성 비소세포성 폐암에 사용이 증가되고 있는 새로운 표적 항암 치료제로써 대부분이 경미한 부작용을 보이나 심각한 약제 유발성 간질성 폐렴이 발생 할 수 있다. 발생 빈도가 높은 일본에서는 유병률이 3.5%까지도 보고 된 바 있으나 현재 우리나라에서는 EAP에서 확인된 1건을 제외하고는 보고가 거의 없어 gefitinib로 인한 간질성 폐렴에 대한 낮은 인지도와 감별 진단의 어려움 등이 문제가 되는 것으로 판단된다. 저자들은 gefitinib에 의한 간질성 폐렴 2례를 경험하였기에 이를 보고하는 바이다.

• Tuberculosis and Respiratory Diseases
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• 제46권1호
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• pp.65-74
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• 1999

연구배경: 간질성폐질환의 진단을 위해 개흉폐생검이 전통적으로 이용되어 왔으나, 수술적검사로 인한 합병증의 위험성이 크다. 최근 간질성폐질환의 진단에 있어서 고해상도 전산화단층촬영(HRCT)과 경기관지폐생검이 널리 이용되고 있으며, 비교적 안전하고 진단율 또한 높은 것으로 알려져있다. 이에 저자들은 간질성폐질환의 진단에 있어서 이들 검사방법들의 유용성을 비교하여보고자 하였다. 방 법: 1995년 5월부터 1998년 6 월까지 단국대학교부속병원에서 급성 및 만성 간질성폐질환의 진단을 위해 HRCT와 개흉폐생검을 시행한 19명의 환자들의 의무기록을 후향적으로 조사하여 이들 환자들의 임상소견, 기저질환, HRCT소견, 경기관지폐생검소견, 개흉폐생검소견, 개흉폐생검의 합병증, 개흉폐생검 후의 치료방법 등을 분석하여 다음과 같은 결과를 얻었다. 결 과: 대상 환자 중에서 증상의 시작에서 개흉폐생검까지의 기간이 2주 이상인 만성 간질성폐질환 환자는 13명(68.4%)이었으며, 2주 미만인 급성 간질성폐질환 환자는 6명(31.6%)이었다. 개흉폐생검으로 만성 간질성폐질환 환자중 92%(12/13)에서 특정진단이 가능하였고(Bronchiolitis obliterans organizing pneumonia 5명, Constrictive bronchiolitis 2명, Usual interstitial pneumonia 3명, 과민성폐장염 1명, 호산구성폐장염 1명), 급성 간질성폐질환 환자들은 모두에서 특정진단이 가능하였다(급성 간질성폐렴 5명, 카리니 주폐포자충폐렴 l명). 개흉폐생검으로 특정진단이 가능하였던 12명의 만성 간질성폐질환 환자에서 HRCT의 첫 번째 가능한 진단명이 옳았던 경우는 50%(6/12)였다. 개흉폐생검 후 만성 간질성폐질환 환자의 62%(8/13)에서 특정 치료를 받았고(스테로이드치료 : 7명, 이사: 1명), 급성 간질성폐질환 환자들은 모두에서 특정 치료를 받았다(스테로이드치료 : 5명, 스테로이드와 항생제치료: 1명). 개흉폐생검 후 병원내 사망율은 5.3%(1/19)였다. 결 론: 간질성폐질환에서 HRCT와 경기관지폐생검에서 특정진단을 못 내릴 경우 개흉폐생검은 비교적 합병증이 적으면서 유용한 진단방법이며, 특히 급성 간질성폐질환에서는 치료에 많은 도움을 줄 수 있다.