Fluid & Brush Quiz 15 This 58 year-old white male smoker enters the emergency room because “he cannot breathe.”  Workup reveals a restless short of breath male.  Chest x-ray suggests a pericardial effusion.  He is tapped and 2060 cc of bloody fluid are removed.  Representative photos of the fluid are seen below.  The most probable diagnosis is:

A Favor malignant mesothelioma.

B Favor metastatic adenocarcinoma.

C Favor metastatic small cell carcinoma.

D Favor metastatic squamous cell carcinoma.

E Reactive mesothelial cells.