Frozen diagnosis?

Differential diagnoses?

• Thanks for Dr. Ma's great comments and summary of a very logic diagnostic process to a correct diagnosis.
• It is well known diagnostic pitfalls for seminoma (dysgerminoma) when there is extensive granulomatous inflammation in gonadal or extra-gonadal locations.
• I also enjoy reading Dr. Ma comment about the principles of frozen diagnosis. This confidence has to be build upon solid knowledge and diagnostic skills, as well as many years of experience.

Dr. Ma: Can you give us some comments why you are so confident and are there any other diagnoses we should consider and rule out? Thanks.