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Laura Nicholson, Elizabeth Marston, Christopher Haak, Nicole Cruz, A-36 Case Study of Cerebellar Cognitive Affective Syndrome in 17-Year-Old Male with Cerebellar Arachnoid Cyst, Archives of Clinical Neuropsychology, Volume 36, Issue 6, September 2021, Page 1077, https://doi.org/10.1093/arclin/acab062.54
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Abstract
Arachnoid cysts are often congenital and asymptomatic, however, they may contribute to neurocognitive symptoms when there is a mass effect on the brain. This case study describes how a 17-year-old with cerebellar arachnoid cyst, and minimal mass effect exhibited symptoms of cerebellar cognitive affective syndrome (CCAS), which has been mostly associated with brain tumor or injury in prior research.
In this case study, a posterior cerebellar arachnoid cyst (midline) was identified incidentally (via CT scan and later MRI) following a panic attack associated with face twitching, motor tremors, and clumsiness. Background history was collected via medical records, neurologist consultation, and parent and patient interview. Patient history was significant for speech, language, motor, and academic delays.
Results of a comprehensive evaluation revealed deficits in perceptual reasoning, visual memory, fine motor functioning, attention, processing speed, executive functioning, social cognition and receptive/expressive language. Multi-informant ratings indicated anxiety. Reading, writing, and mathematics fell several years below grade- level in the context of low average intellectual ability (WAIS-IV: GAI = 88).
Many deficits in this neuropsychological profile are typically subsumed by the cerebellum or its associated networks, and overlap with CCAS. The findings of this case study warrant consideration by clinicians of functional impairment related to cerebellar cysts and expansion of our knowledge-base of cerebellar function.
