Reactive pneumocytes
WebAbstract Objective: To evaluate the prevalence of reactive type II pneumocytes (RPII) in bronchoalveolar lavage (BAL) fluid samples obtained from patients with various pulmonary disorders. Study design: Consecutive BAL fluid samples were screened for the presence of RPII on May-Grünwald-Giemsa-stained cytocentrifuge preparations. WebReactive type II pneumocyte hyperplasia is a nonspecific reactive proliferation of type II pneumocytes in response to a variety of lung injuries and to repair and restore alveolar …
Reactive pneumocytes
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WebJul 16, 2024 · Acute phase diffuse alveolar damage, reactive pneumocytes, pulmonary haemorrhage, acute bronchopneumonia, background emphysematous changes: Interstitial fibrosis, myocyte hypertrophy: Congestion, portal lymphocytic inflammation: Mild to moderate arterionephrosclerosis, scattered tubular casts: WebJun 14, 2024 · (C) Double IHC for an epithelial marker, CK7 (red) and a mesenchymal marker, α-SMA (brown) demonstrated co-expression in a subset of alveolar reactive pneumocytes (40x). (D) At higher magnification, a gradient of CK7 loss can be observed within the epithelial cells, and a subset co-expresses CK7 (red) as well as α-SMA (brown) …
WebLess frequent features included cytopathic changes of pneumocytes and their desquamation, reactive changes of bronchial epithelium, intraalveolar fibrinous exudate, minor necroses, residual necrotizing bronchitis, focal granulation tissue and incipient fibrosis. In one case we found an extraordinary vascular change of uncertain origin. WebA wide variety of pulmonary and pleural histological changes is recognized in the setting of spontaneous pneumothorax. In this study, we describe a previously unreported lesion that was encountered in four males, 24–41 years of age. In addition to reactive eosinophilic pleuritis, subpleural emphysematous blebs, prominent eosinophilic exudate and lung …
WebReactive type II pneumocytes in bronchoalveolar lavage fluid from adult respiratory distress syndrome can be mistaken for cells of adenocarcinoma Dwight Grotte M.D. Departments … WebApr 15, 2024 · In particular, reactive pneumocytes in various infectious or inflammatory lung diseases can exhibit marked cytological atypia, which can closely resemble malignancy. Various types of acute and subacute lung injury can cause severe reactive pneumocyte atypia, which may mimic malignant proliferations and present a major diagnostic pitfall. ...
WebType II pneumocytes are multifunctional and have four main functions: 1. the production and secretion of surfactant; 2. the transepithelial movement of water and ions; 3. the …
WebReactive type II pneumocyte hyperplasia is a nonspecific reactive proliferation of type II pneumocytes in response to a variety of lung injuries and to repair and restore alveolar epithelial integrity. Type II pneumocyte hyperplasia, when exuberant, can exhibit overlapping cytomorphology with adenocarcinoma. The underlying lung injuries sometimes can … east ness yorkshireWebJul 16, 2024 · Airways and alveolar spaces contained large, reactive multinucleated cells that stained positive for the epithelial marker TTF-1 and negative for the macrophage marker CD68 ( figure 2C, D ). Microscopic haemorrhage was identified with diffuse alveolar damage in patients 7, 11, and 13. eastnet service statusWebNov 17, 2024 · Reactive type II pneumocyte hyperplasia is a nonspecific reactive process that has been observed in many types of lung injuries including pneumothorax, diffuse alveolar damage, organizing … culver city ca townhomesWebDec 12, 2001 · Reactive type 2 pneumocytes observed in bronchoalveolar lavages (BALs) may be mistaken for malignant disease, particularly bronchioloalveolar carcinoma (BAC). 3 - 5 Pulmonary infarcts occasionally result in atypical bronchial cells that may mimic adenocarcinoma. 6 Fungal infections and other granulomatous diseases may result in … eastnets fz llcWebJul 1, 2004 · Regenerating type II pneumocytes are the main cellular source of serum KL-6 and SP-D in the affected lungs of patients with various ILDs [23], and these cells in … culver city ca zoning mapWebCytologically, type II pneumocytes may resemble the cells of acute radiation injury. Alternatively, they may be smaller, with an increased nuclear-cytoplasmic ratio, nuclear … culver city ca wikiWebFeb 25, 2016 · Transbronchial biopsies revealed bronchial mucosa and alveolated lung parenchyma with reactive lymphoid infiltrate and organizing pneumonia with occasional eosinophils and neutrophils. Cytology revealed acute inflammation without evidence of malignancy or infectious etiology. culver city ccea mou