Pleural Fluid Mesothelin as an Adjunct to the Diagnosis of Pleural Malignant Mesothelioma

Table 3

Mesothelin concentrations in effusions nondiagnostic for malignancy by cytology relative to final clinical diagnosis.

Mesothelin	Condition				Total
	MM	Non-MM malignancy	Nonmalignant	Inadequate follow-up
Positive	42	8	3	0	53
Negative	35	139	686	23	883
Total	77	147	689	23	936

PPV_MM = 42/53 = 79%.
PPV_malignancy = (42 + 8)/53 = 94%.