A case of cerebellar cognitive affective syndrome following left paramedian cerebellar tumor

We report the case of a 49-year-old man who presented to our psychiatric emergency room with acute agitation and disorganized behavior. The patient’s symptoms were an exacerbation of his reported chronic mood disorder concurrent with left paramedian cerebellar mass for which he underwent a surgical resection several years earlier. Associated with his acute psychiatric symptoms were findings of impaired cognition and altered perception. Diagnostic MRI done during index acute presentation revealed evidence of cerebellar mass regrowth. The disorders of cognition, mood and perceptions which involved a concurrent insult to the cerebellum is consistent with the diagnosis of Cerebellar Cognitive Affective Syndrome (CCAS). Our case underscores and strengthens the notion that the cerebellum plays a significant role in cognitive, mood and perceptual disturbances. Keywords: Cerebellar cognitive affective syndrome, Cerebellum, depression, Cognitive dysfunction, Affective dysregulation.