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  • Title: A neurofibromatosis type 1 patient with thoracic encapsulated fluid and intracranial hypotension syndrome: a case report.
    Author: Huang TW, Huang HP, Ye QY, Che CH, Zheng A, Zhang J, Xiong WT, Chen XC.
    Journal: Neurologist; 2011 May; 17(3):167-71. PubMed ID: 21532389.
    Abstract:
    INTRODUCTION: Spinal meningoceles are uncommon entities, mostly associated with neurofibromatosis type 1 (NF-1). Their intrusion into the thoracic cavity, which compresses lung tissue, is quite often mistaken as a "pleural effusion." The withdrawal of a large amount of "pleural effusion" can lead to the intracranial hypotension syndrome (IHS), herniation, or even death. CASE REPORT: A 43-year-old woman, with NF-1 and a large "pleural effusion" which compressed lung tissue, was admitted to the Thoracic Department due to the patient's shortness of breath during her physical activities. The patient complained of headache shortly after withdrawal of about 250 mL of "pleural effusion." She was diagnosed with IHS according to the typical symptoms of postural headache, low cerebrospinal fluid (CSF) pressure and magnetic resonance imaging findings of diffuse pachymeningeal gadolinium enhancement. The "pleural effusion" was examined and found to be CSF. CONCLUSION: The reported case is the first 1 in the literature in which the intrusion of the NF-1 patient's spinal meningoceles into the thoracic cavity was diagnosed as a "pleural effusion" and large CSF withdrawal led to IHS. We highlight the possibility that thoracic meningoceles can coexist with a thoracic spinal deformity and the caution that needs to be taken when cases with similar symptoms are subjected to withdrawal of fluid.
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