耳鼻咽喉科臨床
Online ISSN : 1884-4545
Print ISSN : 0032-6313
ISSN-L : 0032-6313
臨床
鼻腔血管筋脂肪腫例
中村 陽祐武田 真紀子小田 直治松田 英賢伊藤 和行
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2012 年 105 巻 12 号 p. 1155-1159

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The angiomyolipoma is thought to be a form of hamartoma, with most reported arising in the kidneys. Cases have also been described in the liver, skin, generative organ and oral cavity. However an angiomyolipoma at other sites is rare, and to our knowledge, only 17 cases have been described in the nasal cavity. It is easy to develop apoplexy if enlarged. We report herein on a rare case of angiomyolipoma of the nasal vestibule that did not cause apoplexy and ache.
A 75-year-old female presented with slowly progressive left nasal obstruction. An intranasal examination showed a soft and smooth mass in the left anterior nares. CT scan revealed a mass, the inside of which was uniform, in the left nasal vestibule without bony destruction. MRI almost showed water intensity. The patient had no clinical signs of tuberous sclerosis and hypertension. As for the preoperative diagnosis, a mural cyst was most strongly suspected but a nasal cavity tumor could not be ruled out, either. The tumor was removed through the vestibule using a transoral approach under general anesthesia. The tumor was solid and needed pathological diagnosis, which revealed a final diagnosis of angiomyolipoma. Histopathologically, the tumor was composed of mature fat cells, vascular spaces and bundles of mature smooth muscle cells. There has been no recurrence for 16 months after the surgery.

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© 2012 耳鼻咽喉科臨床学会
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