Impulsivity, Compulsivity, Social Inappropriateness, and Other Neuropsychiatric Features in Cerebellar Histiocytosis.
Malco Rossi, Hernan Chaves, Veronica Navarrine et al.
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Case in brief
This report describes six patients with multisystem Langerhans cell histiocytosis (LCH) who exhibited neurological and psychiatric disturbances linked to cerebellar lesions. Notably, one patient demonstrated a temporal relationship between the progression of cerebellar lesions and worsening psychiatric symptoms, which improved following immunomodulatory treatment. The findings emphasize the significance of assessing impulsivity, compulsivity, and social inappropriateness in patients with cerebellar involvement in LCH.
What made this case unusual
The case highlights a unique temporal clinical-radiological association in one patient, where psychiatric exacerbation coincided with cerebellar lesion progression, providing insight into the neuropsychiatric manifestations of LCH.
Diagnostic / clinical pearl
Clinicians should be aware that cerebellar involvement in LCH can lead to significant neuropsychiatric symptoms, including impulsivity and social inappropriateness, which may require targeted assessment and management.
Why it matters
Understanding the neuropsychiatric features associated with cerebellar LCH can enhance clinical recognition and inform treatment strategies, emphasizing the role of cerebello-limbic circuitry in these behaviors.