Tata\e3-fc. Distinguishing Features in Chylous and Pseudochylous Effusions
>110 mg/dL Chylomicrons present
Chylous Damage or obstruction to thoracic duet . Tracona, malignancy, congenital
Sudden Milky-white or yellow-bloody Lymphocytosis
Etiology Common Causes Onset
Appearance
Microscopic
examination
Trigłycerides
Iipoprotein
electrophoresis
Pseudochylous Chronić effusion
Tuberculosis,
Rheumatoid
pleuritis
Gradual
Milky or green, metallic sheen
Mixed cellular reaction, cholesterol crystals <50 mg/dL1 Chylomicrons absent
Some pseudochylous effusions have triglyceride levels higher than 110 mg/dL.