Delusional infestation in Parkinson disease: a case report of medication-induced psychosis.

IF 0.5 4区 医学 Q4 CLINICAL NEUROLOGY
Neurocase Pub Date : 2026-10-01 Epub Date: 2026-09-07 DOI:10.1080/13554794.2026.2726320
Ali Zare Dehnavi, Jorge Patino, Kendra M Anderson, Ineke Olsthoorn, Natalia Pessoa Rocha, Erin Furr Stimming
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引用次数: 0

Abstract

Delusional infestation (DI) is an uncommon manifestation of psychosis in Parkinson disease (PD), and is often associated with dopaminergic therapy. We describe a 66-year-old woman with PD who developed visual and tactile delusions of a parasitic infestation while receiving dopaminergic medications. Comprehensive neuropsychological testing revealed largely preserved cognitive functioning, with only mild relative weaknesses in processing speed and problem-solving. The patient's symptoms resolved following discontinuation of amantadine, supporting an iatrogenic etiology. Previous case reports have consistently described a link between DI and dopaminergic overstimulation, although DI has been observed across a broad range of cognitive functioning. This case highlights the diagnostic utility of formal neuropsychological assessment and underscores the importance of recognizing DI as a potentially reversible, iatrogenic phenomenon within the spectrum of PD psychosis.

帕金森病的妄想侵袭:药物性精神病1例报告。
妄想性感染(DI)是帕金森病(PD)中一种罕见的精神病表现,通常与多巴胺能治疗有关。我们描述了一位66岁的PD女性,她在接受多巴胺能药物治疗时出现了寄生虫感染的视觉和触觉错觉。全面的神经心理学测试显示,认知功能在很大程度上得到了保留,在处理速度和解决问题方面只有轻微的相对弱点。停用金刚烷胺后,患者症状消失,支持医源性病因。以前的病例报告一致地描述了DI与多巴胺能过度刺激之间的联系,尽管已经在广泛的认知功能中观察到DI。本病例强调了正式神经心理学评估的诊断效用,并强调了在PD精神病谱系中将DI视为潜在可逆的医源性现象的重要性。
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来源期刊
Neurocase
Neurocase 医学-精神病学
CiteScore
1.40
自引率
12.50%
发文量
70
审稿时长
6-12 weeks
期刊介绍: Neurocase is a rapid response journal of case studies and innovative group studies in neuropsychology, neuropsychiatry and behavioral neurology that speak to the neural basis of cognition. Four types of manuscript are considered for publication: single case investigations that bear directly on issues of relevance to theoretical issues or brain-behavior relationships; group studies of subjects with brain dysfunction that address issues relevant to the understanding of human cognition; reviews of important topics in the domains of neuropsychology, neuropsychiatry and behavioral neurology; and brief reports (up to 2500 words) that replicate previous reports dealing with issues of considerable significance. Of particular interest are investigations that include precise anatomical localization of lesions or neural activity via imaging or other techniques, as well as studies of patients with neurodegenerative diseases, since these diseases are becoming more common as our population ages. Topic reviews are included in most issues.
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