A Case of an Angiosarcoma Arising from a Hemangioma Located in the Nasal Cavity.

概要

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Hemangiomas are common benign tumors of vascular origin, and rarely progress to malignant transformation. We experienced a case of a hemangioma which showed malignant transformation. A 69 year-old female was admitted to the hospital due to right nasal bleeding. The tumor was then recognized deep in the right nasal cavity. The tumor was surgically removed with an endonasal procedure. The pathologic diagnosis of the resected tumor was a hemangioma. The tumor then recurred twice in the same place after the initial resection. Finally, the tumor was resected from the lateral wall of the nasal cavity. The histopathological findings of the resected specimen demonstrated an angiosarcoma in the hemangioma. There has been no recurrence now for 17 months after the surgery. Based on the clinical progress and histopathological findings, this case was considered to be a hemangioma which underwent malignant transformation into an angiosarcoma.
耳鼻咽喉科臨床学会の論文