Effect of radiation therapy on extracerebral cavernous hemangioma in the middle fossa

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Abstract
✓ Intracerebral cavernous hemangiomas are relatively easy to remove surgically, but extracerebral cavernous hemangiomas attached to the cavernous sinus are extremely difficult to treat. The authors report three cases of extracerebral cavernous hemangioma in the middle fossa that were treated with radiotherapy. The follow-up studies with serial computerized tomography (CT) scans during and after irradiation are described. In Case 1 radiotherapy after partial removal of the tumor decreased the tumor size on the contrast-enhanced CT scans, reduced its Hounsfield units on the nonenhanced CT scans, and facilitated later total tumor removal. In Case 2 the tumor responded to irradiation with approximately 3000 rads, showing significant reduction in size and Hounsfield units of the tumor. Subtotal removal was then possible. In Case 3 the tumor responded to irradiation, and the patient's vertigo improved after delivery of approximately 3000 rads. The CT scan showed significant reduction in the size and Hounsfield ...

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