Decreased multi-band posterior interhemispheric coherence with a lipoma on the corpus callosum: a case report of a possible association.
The corpus callosum plays a role in mediating interhemisphere communication. Coherence may be a quantitative EEG-based measure of this communication. The present report is of a female schizophrenic patient with a marked coherence deficit in the temporal-parietal-occipital region involving multiple frequency bands. An MRI scan of her brain revealed a lipoma involving the splenium of the corpus callosum. It is speculated that this lipoma may have caused a physical impingment on or developmental aberration of adjacent callosal fibers, resulting in the observed coherence deficit. Further studies of coherence measures in patients with collosal lipomas are proposed.
Pinkofsky
H B
HB
Department of Psychiatry, Louisiana State University School of Medicine, Shreveport 71130-3932, USA.
Struve
F A
FA
Meyer
M A
MA
Patrick
G
G
Reeves
R R
RR
D000328:Adult; D001931:Brain Mapping; D001932:Brain Neoplasms / Q000175:diagnosis / Q000503:physiopathology*; D002540:Cerebral Cortex / Q000503:physiopathology; D003337:Corpus Callosum / Q000503:physiopathology*; D003344:Cortical Synchronization; D004292:Dominance, Cerebral / Q000502:physiology*; D004569:Electroencephalography; D005260:Female; D006801:Humans; D008067:Lipoma / Q000175:diagnosis / Q000503:physiopathology*; D008279:Magnetic Resonance Imaging; D019965:Neurocognitive Disorders / Q000175:diagnosis / Q000503:physiopathology; D012559:Schizophrenia / Q000175:diagnosis / Q000503:physiopathology; D012815:Signal Processing, Computer-Assisted