Alternate ventricular asymmetry could suggest a psychiatric diagnosis

Routine magnetic resonance imaging (MRI) of the skull and brain for diagnostic purposes sometimes reveals a wider tip of the frontal ventricular horn on one side and a wider tip of the temporal horn on the other. A search for 'alternate ventricular asymmetry' in Google Scholar, Medline and PubMed Central yielded no results, so the digital archive of the hospital was searched for such cases. A total of 5908 examinations were reviewed and 508 cases were found, comprising 6% of the neurological inpatients and 20% of the psychiatric inpatients (P = 0.001 by χ² ). The >3-fold difference in the incidence of this particular ventricular asymmetry implies that it could suggest a psychiatric diagnosis. Clin. Anat. 30:50-52, 2017. © 2016 Wiley Periodicals, Inc.