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The presence of pulmonary vasculitis can be suggested by a clinical presentation that includes diffuse pulmonary hemorrhage, acute glomerulonephritis, chronic refractory sinusitis or rhinorrhea, imaging findings of nodules or cavities, mononeuritis multiplex, multisystemic disease, and palpable purpura. Serologic tests, including the use of cytoplasmic antineutrophil cytoplasmic antibody (ANCA) and perinuclear ANCA, are performed for the differential diagnosis of the diseases. A positive cytopla

Sjogren syndrome accompanying pulmonary amyloidosis and lymphoproliferative disease manifests as multiple, large, thin-walled cysts; multiple nodules; parenchymal opacity; and bronchiectasis. These findings are caused by the interstitial or peribronchial infiltration of mixed amyloid and lymphoproliferative cells.

Current hypotheses of the pathogenesis of many forms of pulmonary fibrosis suggest that (i) a stimulus results in repeated or prolonged episodes of lung injury, and (ii) genetic factors modulate the outcome of the injury. The commonly employed single-exposure bleomycin model results in only temporary fibrosis. Therefore, we evaluated whether repeated bleomycin exposures, in the setting of a genetic background more likely to develop a T helper 2 (Th2) response, would induce prolonged fibrosis. Lu

BACKGROUND: Lung cancer is a common comorbidity of idiopathic pulmonary fibrosis (IPF) and has poor outcomes. The incidence and clinical factors related to development of lung cancer in idiopathic pulmonary fibrosis (IPF) are unclear. The aim of this study was to elucidate the cumulative incidence, risk factors, and clinical characteristics of lung cancer in IPF. METHODS: In this retrospective study, we analyzed clinical data for 938 patients who were diagnosed with IPF without lung cancer betwe

ClinicalTrials.gov NCT03761082; the trial was retrospectively registered on December 3, 2018.

BACKGROUND AND OBJECTIVE: Cryptogenic organizing pneumonia (COP) is corticosteroid responsive but residual computed tomography (CT) chest changes are often noted. The present study examined clinical and HRCT features of COP in which there was incomplete resolution. METHODS: We studied 93 patients with histopathologically confirmed COP and serial HRCT imaging. Clinical features were assessed, and serial CT images were analysed. Uni- and multivariate analyses were performed to determine clinical o

Recently published articles on interstitial lung disease (ILD) have focused on the accurate diagnosis of idiopathic pulmonary fibrosis (IPF), serum biomarkers, acute exacerbation of IPF, the prognostic factors of ILD and the trial of new treatment.In particular, reports on the serum biomarkers such as CC-chemokine ligand 18, surfactant protein, circulating fibrocytes, and acute exacerbation of IPF are sufficient to be mentioned here.Pirfenidone therapy is the most important trial for the treatme

Cluster analysis identified distinct phenotypes, which predicted prognosis of clinical outcome. Formula using quantitative CT values is useful to assess extent of pulmonary fibrosis and emphysema with normal lung function in patients with IPF.

The purpose of this study was to evaluate the prognostic significance of classification of patients with septic shock into different critical illness-related corticosteroid insufficiency subgroups. A retrospective observational study was conducted in patients with septic shock who underwent a short corticotropin stimulation test within 72 h of the onset of shock. Patients were classified into normal adrenal function (NOM), low basal cortisol (LBC) (basal cortisol, <10 μg/dL), or low Δ cortisol (

Background Isoniazid(INH) and rifampicin(RFP) are potent antituberculous drugs which have made tuberculous disease become decreasing. In Korea, prescribed doses of INH and RFP have been different from those recommended by American Thoracic Society. In fact they were determined by clinical experience rather than by scientific basis. Even there has been. few reports about pharmacokintic parameters of INH and RFP in healthy Koreans. Method Oral pharmacokinetics of INH were studied in 22 healthy nat

IntersInterstitial lung disease (ILD) is the most common pulmonary manifestation of connective tissue disease (CTD). It may develop in the patients with preexisting connective tissue diseases or may be the initial lone manifestation of an underlying CTD. Since ILD causes a potentially substantial morbidity and mortality in the patients with CTD, close collaboration among pulmonologists, rheumatologists, radiologists and pathologists is very essential to optimize the diagnostic evaluation and tre

Background:Methotrexate (MTX) has been used to treat a wide range of malignant and benign diseases including osteosarcoma, advanced stage non-Hodgkin’s lymphoma, psoriasis, severe rheumatoid arthritis, sarcoidosis, and Wegener’s granulomatosis. MTX-induced lung injury occurs in up to 10% of treated patients. Although both acute and chronic presentations have been described, typical manifestation of MTX-induced lung injury is subacute with symptoms usually developing within several months after s