Usually associated with penetrating chest injuries.Д¬hylous effusion (thoracic duct trauma/obstruction) Pleural effusion symptoms include shortness of breath or. Recent Malignant effusions have higher pH. There are two main reasons fluid may collect in the pleural space: Fluid may accumulate in the pleural space because of an imbalance between the pressure within blood vesselswhich drives fluid out of blood vesselsand the amount of protein in bloodwhich keeps. Although chyle is reported to have protein concentrations in the transudative range, chylous effusions are typically exudative, as defined by the standard criteria. When pleural effusion occurs with NSCLC, it can indicate that cancer has spread and progressed to a late. Objectives: Chyle is a noninflammatory, lymphocyte-predominant fluid that may cause a pleural effusion as a consequence of thoracic duct leakage into the pleural space. Pleural fluid - microscopy and culture (including AFB if appropriate), Protein, Glucose, Lactate dehydrogenase cytology flow cytometry for Cell immunophenotyping Fine needle aspiration biopsy, Lesion biopsy, if indicated. A parapneumonic effusion is an accumulation of exudative pleural fluid associated with an ipsilateral pulmonary infection. Pleural effusion (transudate or exudate) is an accumulation of fluid in the chest or in the lung. Pleural fluid greater than 7.4 congestive cardiac failure pH can help in differentiating tuberculous from malignant effusions. Pleural fluid characteristics of 26 patients diagnosed with malignant mesothelioma over an 18-year period were reviewed and compared with those of patients with effusions due to other malignancies. Pleural fluid analysis comprises a group of tests used to determine the cause. Pleural effusion is a buildup of fluid in the membranes between your lungs and chest wall.