Abstract
We report two patients with paraneoplastic limbic and brainstem encephalitis associated with occult nonmetastatic testicular seminoma. In each patient, the neoplasm was detectable only by testicular ultrasonography. Male patients with this syndrome in whom lung cancer is not found should undergo testicular ultrasonography as part of the search for an extrapulmonary neoplasm. A normal clinical testicular examination is insufficient to exclude an occult seminoma.
MeSH terms
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Adult
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Brain / pathology*
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Brain Stem / pathology*
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Calcinosis / diagnostic imaging
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Diagnosis, Differential
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Encephalomyelitis / diagnosis*
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Encephalomyelitis / etiology
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Humans
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Lung Neoplasms / diagnosis
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Magnetic Resonance Imaging
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Male
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Middle Aged
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Orchiectomy
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Paraneoplastic Syndromes / diagnosis*
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Paraneoplastic Syndromes / etiology
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Seminoma / diagnostic imaging*
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Seminoma / surgery
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Spinal Cord / pathology
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Testicular Neoplasms / diagnostic imaging*
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Testicular Neoplasms / surgery
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Testis / diagnostic imaging*
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Testis / pathology
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Ultrasonography