Question: A 27 year old female is referred for progressive hoarseness, cough, and dysphagia. She is a non smoker with no medical comorbidities. She works as an administrative assistant and plays trumpet in a local orchestra. CT imaging is obtained that demonstrates an air-filled, mass-like lesion extending from the supraglottic larynx into the neck. What is the likely diagnosis, and what feature distinguishes this entity from a saccular cyst?

[Answer will be posted with next week's new question]

Answer to last week's question, "Clotting Pathways" (May 14, 2018)

Binds to plasminogen, preventing plasmin from degrading fibrin.