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KMID : 1130620150110010087
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Journal of Clinical Neurology
2015 Volume.11 No. 1 p.87 ~ p.91
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Paraneoplastic Limbic Encephalitis in a Male with Squamous Cell Carcinoma of the Lung
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Sauri Tamara
Izquierdo Angel
Ramio-Torrenta LLuis
Sanchez-Montanez Angel
Bosch-Barrera Joaquim
Porta Rut
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Abstract
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Background: Paraneoplastic limbic encephalitis (PLE) is a rare syndrome characterized by memory impairment, symptoms of hypothalamic dysfunction, and seizures. It commonly precedes the diagnosis of cancer. Small-cell lung cancer is the neoplasm that is most frequently reported as the etiology underlying PLE.
Case Report: This report describes a male patient who presented with neurologic symptoms consistent with anterograde amnesia, apathy, and disorientation. MRI revealed diffuse hyperintensities located predominantly in the medial bitemporal lobes, basal ganglia, frontal lobes, and leptomeninges on fluid attenuated inversion recovery images, suggesting PLE. Study of the primary tumor revealed squamous cell carcinoma of the lung. The patient was treated with neoadjuvant chemotherapy followed by surgery and adjuvant chemoradiotherapy, which resulted in his neurologic symptoms gradually improving.
Conclusions: PLE might be a rare debut of squamous cell carcinoma of the lung. Treatment of the primary tumor may improve the neurologic symptoms.
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KEYWORD
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lung cancer, squamous cell carcinoma, paraneoplastic syndrome, limbic encephalitis
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