A case of Vascular Malformation treated with radiotherapy
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概要
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A 65-year-old patient with a hemorrhaging airway, that was being obstructed by a hemangioma, was examined. Hemangioma is classified according to its own malformation as well as vascular malformation. Hemangioma is characterized by cell proliferation and common regression in growth. On the other hand, vascular malformation is characterized by a normal cell cycle and continual growth. Vascular malformation is classified as either low-flow type or high-flow type according to blood flow speed.<BR>Major treatments for hemangioma are as follows : sclerotherapy, arterial embolization, surgical resection, corticosteroid therapy, and INF-alfa2A therapy. The treatment is selected according to the classified type.<BR>Radiotherapy was once a popular treatment before 1970, but is no longer performed today because of radiation-induced malignancy and growth delay. This case of hemangioma was diagnosed as a high-flow type vascular malformation using both MRI and MRA. Embolization was not indicated because the following were not found : a major feeding artery to the lesion, side effects of thrombosis to the brain or lung, dysfunctions like dysphagia and dysphonia. Surgical resection was not performed for the same reasons. Corticosteroid therapy and INF-alpha2A therapy were not indicated for vascular malformation. We selected radiotherapy considering that at the patient age, she would have less possibility of malignancies occurring. The bleeding stopped after only 6Gy irradiation. 30Gy was performed in total.
- The Japan Laryngological Associationの論文
The Japan Laryngological Association | 論文
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