Question: A 67 year old female is referred for a 2 year history of hoarseness. She notes globus sensation and occasional pain on the left side of her neck. Laryngoscopy reveals a cystic mass within the laryngeal ventricle. The mass is biopsied and excised. The pathologist informs you that abundant mitochondria and metaplasia were seen in the specimen. What is the diagnosis? [Answer will be posted with next week's new question]

Answer to last week's question, "Feed Me" (October 24, 2016):

Refeeding syndrome.