What is the diagnosis? 

This patient with a history of carpal tunnel syndrome comes to the hospital for evaluation of chronic heart failure of unknown cause. He has enlarged tongue on examination and orthostatic hypotension along with preserved systolic heart function.
What is the most likely diagnosis?

What is this physical finding called?

What is the diagnosis?

What could be the underlying cause of this disease.

Patient with Hb=6.2mg/dl, MCV=97fL and systolic murmur in base of heart. What is the cause of anemia?