Paraneoplastic limbic encephalitis is associated with various malignant neoplastic lesions, most commonly bronchial carcinoma and non-Hodgkin lymphoma.

In this case, the patient had gastric non-Hodgkin lymphoma with no alarming gastrointestinal manifestations. 

The patient started to have aggressive bizarre attitude and persistent headache. MRI was delayed for three months after the beginning of the symptoms as the patient was claustrophobic.  After MRI, the patient has not sought medical advice and she died a month later. 

An autopsy has proven gastric non-Hodgkin lymphoma.