Pleural fluid analysis in pancreatic hydrothorax typically shows which of the following?

Pleural fluid analysis in pancreatic hydrothorax typically shows which of the following?

• A. Exudative pleural fluid analysis with elevated amylase
• B. Transudative pleural fluid with low protein
• C. Purulent pleural fluid with bacteria
• D. Serous pleural fluid with normal amylase

Answer: (A)

Pancreatic hydrothorax occurs when pancreatic secretions leak into the pleural space, usually through diaphragmatic defects or lymphatics, leading to a pleural effusion that is rich in pancreatic enzymes. The pleural fluid typically meets exudative criteria (higher protein and LDH than serum) and, importantly, contains a markedly elevated amylase level due to the pancreatic origin. This very high amylase in the pleural fluid, often exceeding serum amylase, is the hallmark that points to pancreatic hydrothorax. That makes exudative pleural fluid with elevated amylase the best description. Transudative fluid with low protein would suggest systemic causes like heart failure; purulent fluid with bacteria indicates infection; serous fluid with normal amylase would not reflect pancreatic leakage.

Pancreatic hydrothorax occurs when pancreatic secretions leak into the pleural space, usually through diaphragmatic defects or lymphatics, leading to a pleural effusion that is rich in pancreatic enzymes. The pleural fluid typically meets exudative criteria (higher protein and LDH than serum) and, importantly, contains a markedly elevated amylase level due to the pancreatic origin. This very high amylase in the pleural fluid, often exceeding serum amylase, is the hallmark that points to pancreatic hydrothorax.

That makes exudative pleural fluid with elevated amylase the best description. Transudative fluid with low protein would suggest systemic causes like heart failure; purulent fluid with bacteria indicates infection; serous fluid with normal amylase would not reflect pancreatic leakage.