65-year-old man with worsening shortness of breath   

Additional images and questions

Images, in order: CD5, CD117, p40, PAX-8.

What is the most common subtype of thymic carcinoma?
Basaloid carcinoma
Squamous cell carcinoma
Lymphoepithelial carcinoma
Clear cell carcinoma

The most common mutation in thymic carcinomas is which of the following?
Recurrent loss of chromosome p16
MAML2 gene fusion
NUTM1 gene fusion
EWSR1 gene fusion

Myasthenia gravis is associated with a majority of thymic carcinoma cases.