Wernicke's encephalopathy due to food refusal in a patient with severe depressive disorder

- Wernicke's encephalopathy is underdiagnosed, especially in non-alcoholics.
- Level of suspicion should be high in all patients with dietary deficiencies.
- Psychiatric illness can be associated with delayed diagnosis of comorbid conditions.
- Internuclear ophthalmoplegia is a rare but previously described manifestation.
- Knowledge of typical imaging findings can aid in diagnosis.