Complete Heart Block Secondary to Microscopic Polyangiitis: A Rare Case Presentation.

The potential etiologies of third-degree complete heart block include idiopathic, pathologic, and iatrogenic causes. We present a rare case of complete heart block in an elderly woman with microscopic polyangiitis (MPA), who presented with dyspnea on exertion and dizziness.

Primary Lung Adenocarcinoma Presenting with Pericardial Tamponade in a Young Adult: A Rare Case Presentation.

Primary lung cancer typically presents in the older adult with a history of significant tobacco use. We present a young adult male with a rapid onset of dyspnea, and a large pleural and pericardial effusion with tamponade, necessitating urgent surgical intervention.