A Case of Orbital Cavernous Hemangioma with Multiple Intra c ranial Lesions

Cavernous hemangioma is the most common primary orbital tumor in adults. This tumor is usually unilateral and single.The authors experienced a young male patient who complained of postural variations of proptosis and was diagnosed as an orbital cavernous hemangioma associated multiple intracranial lesions. The diagnosis was based on histopathological examination and various radiologic studies including computed tomography (CT), magnetic resonance imaging (MRI), and single photon emission computed tomography (SPECT). So we report a rare case of cavernous hemangioma which occurred multiplly with a brief review of the literature.

Evaluation of Extraocular Muscle Contractibility after Recession and resection by EMG in Rabbit

For evaluating the change of strength of extraocular muscle after strabismus surgery, ten rabbits had been performed resection of lateral rectus muscle in right eye and recession of lateral rectus muscle in left eye, and then performed EMG(electromyography). We performed EMG before surgery, at immediate post-op,after 1 day,1,2,3,4,6,8 weeks. In case of resection of lateral rectus muscle, EMG value increased at immediate post-op then stabilized after 6 weeks. In case of recession of lateral rectus muscle, EMG value decreased at immediate post-op, then stabo; ozed after 6 weeks. Therefore, EMG is the useful method in evaluating the change of strength of EOM. Especially, during 6 weeks after surgery is the important peeriod for follow-up.

Osseous Choristoma within an Epibulbar Complex Choristoma

Episcleral osseous choristoma is a rare isolated bony nodule occurring in the conjunctival or episcleral connective tissue in eyes which are otherwise normal. They are present at birth. This congenital lesion is usually about the size of a pea and typically located in the superotemporal quadrant, some 5 to 10mm from the limbus. Of the 40 reported cases in the literature, none had associated ocular abnormalities. The diagnosis has seldom been suspected preoperatively. Our patient was 3-month-old healthy male baby. For the cosmetic purpose, we had done excisional biopsy. In the histopathologic study, the mass was a dermoid covered with skin and contained fat, hair follicle and osseous tissue at its center. The mass was confirmed to be a complex choristoma, especially osseous choristoma. We report this case because of the rarity of osseous chroistomas combined with complex choristoma.