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Radiology Quiz Case: Diagnosis
Arch Otolaryngol Head Neck Surg. 2008;134(7):782.
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| Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings. |
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Diagnosis: Cervical sympathetic schwannoma
Cervical sympathetic schwannoma is a rare benign nerve sheath tumor, encountered mainly as a parapharyngeal space-occupying lesion. After salivary gland tumors, neurogenic tumors are the second most common neoplasms of the parapharyngeal space. They are usually located in the poststyloid region of the parapharyngeal space. Among the neurogenic tumors, the most common are the schwannomas of the vagus and sympathetic nerves.1-2 Of the approximately 37 sympathetic schwannomas that have been reported in the English-language literature to date,1 10, including the present case, have been described as splaying the carotid arteries.2-3 Some reports have noted a male predilection.1
Cervical sympathetic schwannomas present as a painless mass in the lateral upper neck. The presence or lack of pulsation in the mass is neither sensitive nor specific for a carotid body tumor, as sympathetic schwannomas that cause anterior displacement of the carotid arteries can feel pulsatile.1-3 In a carotid body tumor, splaying of . . . [Full Text of this Article]
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