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Case No. 251
2011-09-01~2011-09-30
출제자 : 최진우
Hit : 507
| Period | 2011-09-01~2011-09-30 |
|---|---|
| Diagnosis | Schwannoma of the larynx |
| Clinical information | F/56 C.C. : Hoarseness onset) 내원 2년 전 |
| Discussion | Schwannoma of the larynx 1. About 45% of all neurogenic tumors occur in the head and neck region, mostly located in the parapharyngeal space Schwannoma or neurofibroma within the larynx is very uncommon (0.1% to 1.5% of all benign laryngeal tumor) àUsually located in the supraglottic larynx, rarely in the glottis (80% in the aryepiglottic fold, 20% in vocal cords) à usually grow submucosally; with a few reports describing polypoid growth 2. The internal branch of the superior laryngeal nerve is most likely the nerve of origin 3. slow growing : gradual hoarseness, globus sensation, dysphagia, dyspnea on exertion with inspiratory 4. Imaging Findings 1) CT - Well defined, hypodense submucosal mass without signs of infiltrative or destructive growth - heterogeneous contrast enhancement 2) MRI - low or isointense SI on T1 WI compared with adjacent musculature and hyperintensity on T2WI. - Avid gadolinium enhancement is common 3) The only curative treatment option is complete surgical excision. |
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