• Tuberculosis and Respiratory Diseases
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• v.63 no.1
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• pp.83-87
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• 2007

Idiopathic pulmonary fibrosis (IPF) is strongly associated with lung cancer compared with the general population. However, other types of idiopathic interstitial pneumonia (IIP) are rarely associated with lung cancer. We describe a case of a primary lung cancer associated with IIP other than IPF, which was considered to be nonspecific interstitial pneumonia (NSIP), and NSIP disappeared spontaneously after treating the primary lung cancer.

• Tuberculosis and Respiratory Diseases
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• v.44 no.3
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• pp.449-469
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• 1997

• Tuberculosis and Respiratory Diseases
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• v.65 no.4
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• pp.328-333
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• 2008

Desquamative interstitial pneumonia is an uncommon form of interstitial lung diseases and it has a good prognosis compared with other types of idiopathic interstitial pneumonia. A 69-year old man was admitted to our hospital because of a 3-month history of dyspnea. The patient presented with hypoxemia. High-resolution computerized tomography of the patient showed ground glass opacity and traction bronchiectasis with subpleural early honeycombing on the both lung fields. The pathologic findings of the video-assisted thoracoscopy lung biopsy were compatible with desquamative interstitial pneumonia, and irregularly distributed interstitial fibrosis and inflammation were observed at the peripheral parenchyme. Oral predinsolone was started; his symptoms and chest x-ray were improved, and so he stopped taking the prednisolone. Ten months later, the desquamative interstitial pneumonia recurred. We report here on a case of recurrent desquamative interstitial pneumonia with fibrotic lung disease.

• Tuberculosis and Respiratory Diseases
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• v.52 no.1
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• pp.62-69
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• 2002

Acute interstitial pneumonia (AIP) is a rare fulminant form of lung injury that presents acutely; usually in a previously healthy individual. It corresponds to a subset of cases of idiopathic adult respiratory distress syndrome (ARDS). Invasive pulmonary aspergillosis is a disease occuring predominantly with defects in immunity such as hematologic malignancy, influenza infection, postchemotherapy, long-term corticosteroid treatment. Invasive aspergillosis has worse prognosis and most cases are diagnosed at postmortem autopsies. We experienced a case of acute interstitial pneumonia with an invasive aspergillosis during corticosteroid treatment. Acute interstitial pneumonia with invasive aspergillosis was diagnosed by an open lung biopsy using thoracoscopy, showing fungal hyphae with sepsis and an acute angle branching invasion of the lung tissue and blood vessels. The patient was treated with IV amphotericin-B, but died due to septic shock.

• Tuberculosis and Respiratory Diseases
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• v.53 no.2
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• pp.127-135
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• 2002

Background : Idiopathic interstitial pneumonia is characterized by chronic inflammation and pulmonary fibrosis. The clara cell 10 kD protein (CC10, also designated CC16) is synthesized by the bronchial epithelium and has been suggested to have a potent anti-inflammatory effect. Therefore, CC-10 might be a candidate for controlling the inflammatory events in patients with idiopathic interstitial pneumonia. The aim of this study was to determine if the degrees of pulmonary fibrosis in idiopathic interstitial pneumonia is associated with CC-10 in the BAL fluid. Materials and Methods : The BAL fluid was collected from 29 patients and 10 controls. Densitometric analysis of the western blot assay for the CC-10 was subsequently performed. The RI (relative intensity) of each band was compared according to the diagnosis, the radiological degrees of pulmonary fibrosis and the relative proportion of inflammatory cells in the BAL fluid. Results : There were no differences in the CC-10 expression levels in the BAL fluid between the patients (RI $77.5{\pm}75.8%$) and the controls ($70.7{\pm}39.8%$) (p>0.05). In addition, the degrees of pulmonary fibrosis and airway inflammation in patients with usual interstitial pneumonia were not associated with CC-10 expression in the BAL fluid (p>0.05). Conclusion : This study suggests that CC-10 expression is not associated with the degrees of pulmonary fibrosis in patients with usual interstitial pneumonia.

• Tuberculosis and Respiratory Diseases
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• v.54 no.3
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• pp.251-259
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• 2003

• Tuberculosis and Respiratory Diseases
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• v.77 no.4
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• pp.184-187
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• 2014

Idiopathic pleuroparenchymal fibroelastosis (PPFE) is a rare, recently classified entity that consists of pleural and subjacent parenchymal fibrosis predominantly in the upper lungs. In an official American Thoracic Society/European Respiratory Society statement in 2013, this disease is introduced as a group of rare idiopathic interstitial pneumonias. We describe a case of a 76-year-old woman with cough and recurrent pneumothorax. She was admitted to our hospital with severe cough at first. High resolution computed tomography (HRCT) disclosed multifocal subpleural consolidations with reticular opacities in both lungs, primarily in the upper lobes, suggesting interstitial pneumonia. Rheumatoid lung was diagnosed initially through an elevated rheumatoid factor, HRCT and surgical biopsy at the right lower lobe. However, one month later, pneumothorax recurred. Surgical biopsy was performed at the right upper lobe at this time. The specimens revealed typical subpleural fibroelastosis. We report this as a first case of idiopathic PPFE in Korea after reviewing the symptoms, imaging and pathologic findings.

• Journal of the Korean Society of Radiology
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• v.82 no.4
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• pp.770-790
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• 2021

Idiopathic pulmonary fibrosis (IPF), based on the 2018 international clinical practice guidelines, can be diagnosed with a usual interstitial pneumonia (UIP) pattern on high-resolution computed tomography (HRCT) and compatible clinical findings. Given that imaging is pivotal for IPF evaluation and diagnosis, more emphasis should be placed on the integration of clinical, radiological, and pathologic findings for multidisciplinary diagnosis. Interstitial lung abnormality (ILA), on the other hand, has a purely radiological definition based on the incidental identification of CT abnormalities. Taken together, differentiation between ILA and clinically significant interstitial lung disease (ILD) must be based on proper clinical evaluation. With this review, the recent updates in IPF diagnosis and the radiologic considerations for ILA can be well understood, which can be helpful for the proper diagnosis and management of patients with diffuse interstitial pulmonary fibrosis.

• Tuberculosis and Respiratory Diseases
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• v.84 no.3
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• pp.171-175
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• 2021

Cryptogenic organizing pneumonia (COP) is a type of idiopathic interstitial pneumonia with an acute or subacute clinical course. Bilateral lung consolidations located in the subpleural area and bronchovascular bundle are the most common findings on chest high-resolution computed tomography. The pathologic manifestations include granulation tissue in the alveoli, alveolar ducts, and bronchioles. COP responds fairly well to glucocorticoid monotherapy with rapid clinical improvement, but recurrence is common. However, treatment with combined immunosuppressant agents is not recommended, even if the COP patient does not respond to glucocorticoid monotherapy with expert opinion.

• Tuberculosis and Respiratory Diseases
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• v.42 no.1
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• pp.58-66
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• 1995

Background: Acute interstitial pneumonia is a relatively rare form of interstitial pneumonia, since the vast majority of interstitial pneumonia have a more chronic course. It corresponds to the lesion described by Hamman and Rich, as Hamman-Rich disease in 1944. Another name in the clinical literature is accelerated interstitial pneumonia, idiopathic acute respiratory distress syndrome (idiopathic ARDS), and the organizing stage of diffuse alveolar damage. Acute interstitial pneumonia differs from chronic interstitial pneumonia by clinical and pathologic features. Clinically, this disease is characterized by a sudden onset and a rapid course, and reversible disease. Method and Purpose: Five cases of pathologically proven acute interstitial pneumonia were retrospectively studied to define the clinical, radiologic, and pathologic features. Results: 1) The five cases ranged in age from 31 to 77 years old. The onset of illness was acute in all patients, it began with viral-like prodrome 6~40 days prior to shortness of breath, and respiratory failure eventually developed in all patients. In 2 cases, generalized skin rash was accompanied with flu-like symptoms. Etiologic agent could not be identified in any case. 2) All patients had leukocytosis and severe hypoxemia. Pulmonary function test of 3 available cases shows restrictive ventilatory defect, and one survived patient(case 5) has a complete improvement of pulmonary function after dismissal. 3) Diffuse bilateral chest infiltrates were present radiologically. Theses were the ground-glass, consolidation, and reticular densities without honeycomb fibrosis in all patients. The pathologic abnormalities were the presence of increased numbers of macrophages and the formation of hyaline membranes within alveolar spaces. There was also interstitial thickening with edema, proliferation of immature fibroblast, and hyperplasia of type II pneumocyte. In the survived patient(case5), pathologic findings were relatively early stage of acute interstitial pneumonia, such as hyaline membrane with mild interstitial fibrosis. 4) Of the 5 patients, four patients died of respiratory failure 14~90 days after onset of first symptom, and one survived and recovered in symptoms, chest X ray, and pulmonary function test Conclusion: These results emphasize that acute interstitial pneumonia is clinically, radiologically, and pathologically distinct form of interstitial pneumonia and should be separated from the group of chronic interstitial pneumonia. Further studies will be needed to evaluate the pathogenesis and the treatment of acute interstitial pneumonia.