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Table 2 Causes of pleural effusion

From: Improved heart hemodynamics after draining large-volume pleural effusion: a prospective cohort study

Cause   n, %
Malignancies   24 (51.1)
  Primary lung cancer 14 (29.8)
Secondary carcinoma 2 (4.3)
Mesothelioma 4 (8.5)
Lymphoma 1 (2.1)
Undetermined 3 (6.4)
Benign diseases   23 (48.9)
  Tuberculosis 17 (36.0)
Non-specific pleurisy 2 (4.3)
Other transudate 2 (4.3)
Other exudates 2 (4.3)
Total   47 (100.0)