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Technol Cancer Res Treat. 2006 Jun;5(3):281-4.

Locoregional proton radiotherapy of a primary cavernous sinus non-Hodgkin's lymphoma: case report.

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Loma Linda University Medical Center, Department of Radiation Medicine, 11234 Anderson St., Loma Linda, CA 92354, USA.


Primary B cell lymphomas of the skull base are uncommon and lack well-defined treatment guidelines. We report a case of diffuse, large B-cell lymphoma of the cavernous sinus with sphenoid sinus and clivial extension, treated with partial resection, chemotherapy, and proton beam irradiation. To our knowledge, this is the first report of a skull-base lymphoma treated with protons. A 53-year-old female presented with a two-month history of diplopia, persistent headaches, and paresthesia over the left side of her mouth. A skull MRI revealed an enhancing mass in the right cavernous sinus and right sphenoid sinus. Transsphenoidal subtotal resection of the mass confirmed the presence of a diffuse, large B-cell lymphoma. Treatment consisted of CHOP-R chemotherapy and locoregional radiation with protons. Locoregional radiation of the lesion required moderate doses, below the radiation tolerance of adjacent normal structures. Conformal protons were utilized to minimize the volume of normal brain receiving radiation. Conformal proton beam radiotherapy to a moderate dose proved valuable in this case because it minimized the volume of normal brain receiving low to moderate doses of radiation.

[Indexed for MEDLINE]

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