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Show LITERATURE ABSTRACTS 75 Spontaneous Visual Improvement in Chiasmal Gliomas. Liu GT, Lessell S. Am JOphthalmol1992; 114:193--201 (Aug). [Reprint requests to Dr. S. Lessell, 242 Charles St., Boston, MA 02114.] The authors report three cases of presumed chiasmal glioma (all with magnetic resonance imaging) followed for considerable periods of time (8112 years, 4 years, 5 years) who demonstrated modest to considerable improvement in visual function without any surgical or radiation therapy intervention. Other similar reported cases are discussed as well as possible mechanisms. Lyn A. Sedwick, M.D. Treatment of Acquired Intermittent Horizontal Jerk Nystagmus With Baclofen. Miller BA, Younger DA, Friendly OS. Am J Ophthalmol 1992; 114:366-7 (Sept). [Inquiries to Dr. B. A. Miller, 3358 Second St. S., Arlington, VA 22204.] A 6-year-old with episodic jerk nystagmus is presented. He had excision of a posterior fossa ependymoma 2 years previously followed by chemotherapy and radiation treatment. Magnetic resonance showed no tumor recurrence. Baclofen treatment markedly reduced the number, duration, and intensity of episodes. Lyn A. Sedwick, M.D. Magnetic Resonance Imaging of Orbital Lymphangioma With and Without Gadolinium Contrast Enhancement. Bond JB, Haik BG, Taveras JL, Francis BA, Numaguchi Y, Mihara F, Gupta KL. Ophthalmology 1992;99:1318-24 (Aug). [Reprint requests to Dr. BG Haik, Department of Ophthalmology, Tulane University Medical Center, 1430 Tulane Ave, New Orleans, LA 70112.] Magnetic resonance imaging was used in 12 patients with orbital lymphangioma and provided "optimal imaging" of these tumors mainly because of its ability to distinguish acute and chronic hemorrhage. It was also useful for identifying largetumor feeding vessels. Excellent magnetic resonance images are provided in this article. Lyn A. Sedwick, M.D. Bilateral Localized Orbital Neurofibromas. Meyer DR, Wobig JL. Ophthalmology 1992;99:1313--17 (Aug). [Reprint requests to Dr. D. R. Meyer, Director, Oculoplastic and Orbital Surgery Service, Department of Ophthalmology, Albany Medical College, Pinnacle Place, McKown Rd, Albany, NY 12203]. A 30-year-old man presented with bilateral progressive exophthalmos. Computed tomographic scanning demonstrated large heterogeneous masses superiorly in both orbits, which were surgically removed and found to be neurofibromata. The patient's general physical findings were suggestive of multiple endocrine neoplasia type IIB, which was felt to be the cause of his neurofibromata. Lyn A. Sedwick, M.D. Visual Symptoms Associated With Choroidal Neovascularization. Photopsias and the Charles Bonnet Syndrome. Brown GC, Murphy RP. Arch Ophthalmol 1992;110:1251-6 (Sept). [Reprint requests to Dr. G. C. Brown, 910 E Willow Grove Ave, Wyndmoor, PA 19918.] The authors report on photopsia and formed hallucinations experienced by 67 of 100 consecutive patients with macular choroidal neovascularization from macular degeneration. In most of these patients, visual acuity was very poor in each eye. The discussion section, particularly in regard to hallucinations, is excellent. Lyn A. Sedwick, M.D. Magnetic Resonance Imaging of Leukemic Invasion of the Optic Nerve. Horton JC, Garcia EG, Becker EK. Arch OphthalmoI1992;1l0:1207-8 (Sept). [No reprint information given.] A case of leukemic infiltration of the optic nerve is presented with color disc photographs and confirmatory axial and coronal magnetic resonance images. As the authors note, computed tomography has been a "rather insensitive method for detecting abnormalities in patients with leukemic infiltration of the optic nerve." Lyn A. Sedwick, M.D. J Clin Neuro-ophthlllmoC Vol. 13, No.1, 1993 |