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조현상,이규은,김경수 대한이비인후과학회 2014 대한이비인후과학회지 두경부외과학 Vol.57 No.3
Fungus ball of the paranasal sinuses is usually found in only one sinus, most frequently in the maxillary sinus. It may produce symptoms of chronic rhinosinusitis, such as purulent rhinorrhea, nasal obstruction, headaches, and sensation of pressure. However, cases involving bilateral paranasal sinuses are rarely reported. Herein we report two cases of fungus ball in bilateral paranasal sinuses with a review of this disease entity. Korean J Otorhinolaryngol-Head Neck Surg 2014;57(3):185-9
The Use of Lens Shielding Device(L.S.D.) for a Conjunctival Lymphoma
조현상,주상규,송기원,박영환,Cho Hyun Sang,Ju Sang Gyu,Song Ki Won,Park Young Hwan 대한방사선치료학회 1997 大韓放射線治療技術學會誌 Vol.9 No.1
When therapeutic irradiation is indicated for the orbital tumors, the greatest concern is the risk of radiation-induced cataract. Conjunctival lymphoma is one of the good examples. We would like to report the procedure of the lens shielding device(L.S.D) and the result of irradiated dose to the lens. L.S.D. consistes of two parts : load alloy to attenuate electron beam, and dental acryl which completely covers the lead alloy to avoid discomfort of cornea from contacting directly with cerrobend and side scattering by cerrobend. And for easy location and removal, side bars were made on each side. Radiation doses were meaured with TLD(TLD 3500 Hawshaw). Markus chamber in a polystyrene phantom. The phantom was irradiated with 9MeV electron beams from Clinac 2100C with $6{\times}6cm$ electron cone. The relative dose at 6mm depth where the lens is located was $4.2\%$ with TLD and $5.1\%$ with Markus chamber clinically when 2600 cGy are irradiated to the eyeball, the mapinary dose to the lens will be 109 cGy or 132 cGy, which will significently reduce the cataract.