A Case of Chondroid Lipoma of the Larynx

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  • 喉頭軟骨様脂肪腫例
  • コウトウ ナンコツ ヨウ シボウ シュレイ

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Abstract

<p>We report a case of chondroid lipoma arising from the arytenoid. A 65-year-old man visited an otolaryngology clinic with a chief complaint of laryngopharyngeal discomfort. A flexible fiberscope examination showed a spherical mass covered by intact mucosa in the larynx, but the base of the lesion could not be identified. A computed tomography examination of the neck revealed a low-density, well-circumscribed solid mass lesion in the supraglottic area. Because intubation was difficult as a result of the mass, the mass was removed using laryngomicrosurgery after a tracheostomy. The mass, which had arisen from the left arytenoid region, was well isolated from its surroundings and was histologically diagnosed as a chondroid lipoma. A follow-up examination performed two months after hospital discharge found no evidence of recurrence. Chondroid lipoma is a variant of the typical benign lipoma and is characterized by a mixture of mature fat cells with chondromyxoid and/or hyalinized areas. Its cells contain vacuoles resembling lipoblasts or chondroblasts, and it usually arises in the proximal extremities or limb girdles of middle-aged women but rarely in the head and neck region, especially in the larynx.</p>

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