Metastatic renal cell carcinoma-associated pleural effusion after coronary artery bypass grafting

Deborah M Rowlands1, Joseph M Zasik, James F Reed

  • 1Department of Internal Medicine, St. Luke's Hospital and Health Network, 801 Ostrum St, Bethlehem, PA 18015, USA. D_rowlands@hotmail.com

Insights

Pleural effusions are common after coronary artery bypass grafting (CABG), but malignant effusions mimicking these post-surgical complications are rare. This case highlights a patient with a malignant effusion presenting similarly to late post-CABG effusions.

Area of Science:

  • Cardiology
  • Thoracic Surgery
  • Pulmonology

Background:

  • Pleural effusions are a frequent complication following coronary artery bypass grafting (CABG), affecting up to 89% of patients.
  • These post-CABG effusions typically manifest days to months after surgery, often on the left side, and usually resolve spontaneously.

Observation:

  • A 50-year-old male patient developed a left-sided pleural effusion three months post-CABG.
  • The effusion's characteristics mimicked those of late-occurring post-CABG pleural effusions.

Findings:

  • The patient's effusion was diagnosed as malignant, despite its resemblance to benign post-surgical effusions.
  • This presentation is unusual as malignant pleural effusions temporally related to CABG are not widely documented.

Implications:

  • Distinguishing between post-CABG effusions and other causes, such as malignant effusions, is crucial for appropriate patient management.
  • This case underscores the importance of considering malignancy in patients with atypical or persistent pleural effusions after cardiac surgery.
  • Further research may be needed to understand the potential overlap in presentation between post-CABG effusions and malignant effusions.