54-year-old man with weight gain and muscle weakness

Essential Differential Diagnosis

At this time, which of the following differential diagnoses cannot be excluded based on history and physical examination in this patient? (You may select more than one option.)


Although cavernous sinus thrombosis can cause a 3rd nerve palsy, patient should also have significant headache and fever.


Increased thirst and urination with fatigue in a known patient with diabetes suggest uncontrolled hyperglycemia. Longstanding diabetes can lead to significant vascular disease that could cause a 3rd cranial nerve palsy.