Flash information
- Observation
- Crystalline structures have sharply defined edges.
- Limitation
- Avoid confusing chylothorax with cholesterol-rich effusion.
Definition
Cholesterol crystals in pleural fluid.
Reading method
Inspect plates and angular contours.
Morphological description
Crystalline structures have sharply defined edges.
Source context
This suggests pseudochylothorax, with fluid-analysis correlation.
Differential diagnoses
Distinguish pseudochylothorax from chylomicron-containing chylothorax.
Clinical correlation
Integrate cholesterol, triglycerides and chronic pleural context.
Clinical impact
Clinical impact depends on volume and cause.
Pitfalls and limitations
Avoid confusing chylothorax with cholesterol-rich effusion.
Take-home message
Complete lipid analysis prevents misclassification.
Sources
- Wikimedia Commons · File:Cholesterol crystals in pleural fluid microscopy.jpg ↗
- Lama et al. · Characteristics of patients with pseudochylothorax—a systematic review · 2016 ↗
Documentary review: 2026-10-14
Media source & rights
- Author
- Ajay Kumar Chaurasiya
- Original source
- Ajay Kumar Chaurasiya · Cristaux de cholestérol : liquide pleural · CC BY-SA 4.0
- Licence
- CC BY-SA 4.0
- Changes
- Whole image retained; proportional resize and WebP conversion only. No clinical alteration. Derivative retains the original licence.
- Dimensions
- 960 × 720 px
- Check
- 2026-10-14