Before Attributing Catatonia to Autism with Anxiety, All Other Causes should be Carefully Excluded, Especially in a Patient with Meningioma

We recently read an interesting case report in your Journal about the complete disappearance of catatonia after a single intravenous lorazepam challenge test in a patient with autistic features and a small meningioma.1 We would like to congratulate the authors but also point out some weaknesses of the article. We have already seen several cases of organic catatonia,2 and we noticed the authors did not cite the latest evidence-based consensus guidelines for the treatment of catatonia.3 Therefore, we wonder if the patient diagnosed with a first episode of psychosis with autism features and anxiety-related catatonia had any changes in electroencephalography or lumbar puncture before treatment to rule out epilepsy4 or encephalitis, for example.