Rare Co-Occurrence: Paraneoplastic Striatal Encephalitis with a Metastatic Lesion in Small Cell Lung Cancer.

Authors

Varun Shahi, Navdeep Kaur Mann, Birinder S Paul, Himanshu Kaushal, Sehajbir Singh

Published in

Annals of Indian Academy of Neurology. Aug 04, 2026. Epub Aug 04, 2026.

Abstract

We present a rare case of striatal encephalitis associated with small cell lung cancer (SCLC), manifesting as a choreiform movement disorder. A 57-year-old woman presented with a subacute onset of involuntary movements. Despite extensive investigations, the etiology of this choreiform movement disorder remained elusive until a detailed evaluation of clinical signs and radiological findings revealed SCLC. In addition, she had an asymptomatic metastatic brain parenchymal lesion. This case highlights the importance of considering paraneoplastic striatal encephalitis (PSE), a rare presenting neurological syndrome.

PMID:
42574197
Bibliographic data and abstract were imported from PubMed on 11 Aug 2026.

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