WF Post Obstructive Atelectasis

Left Upper Lobe Atelectasis (Collapse) Caused by Central Squamous Cell Carcinoma
82-year-old female with dyspnea presents with an obstructing central squamous cell carcinoma of the left main stem bronchus with with extension in the lumen along its course, and secondary post obstructive atelectasis of the left upper lobe of the lung. In addition, there is a small left effusion..
Ashley Davidoff MD TheCommonVein.net RnD case 239Lu