No abstract available.
Sinusitis*

PURPOSE: The purpose of this study was to compare the fracture strength of the zirconia ceramic crowns according to tooth position. MATERIAL AND METHODS: After 10 metal dies were made for each group, the zirconia ceramic crowns were fabricated using CAD/CAM system (Lava(TM) All-Ceramic System) and each crown was cemented on each metal die with resin cement (Rely X(TM) Unicem). The cemented zirconia ceramic crowns mounted on the testing jig were inclined with 30 degrees to the long axis of the tooth and the universal testing machine was used to measure the fracture strength. RESULTS: 1. The fracture strength of the zirconia ceramic crown in the lower 1st molar (2963 N) had the highest and that in the lower central incisor (1035 N) had the lowest. 2. The fracture strength of zirconia ceramic crown was higher than that of the IPS Empress crowns in all tooth position. 3. The fracture mode of the crowns was similar. Most of fracture lines began at the loading area and extended through proximal surface perpendicular to the long axis of the crowns. 4. There were no significant differences on the fracture strength of the zirconia ceramic crowns according to tooth position except in premolar group. CONCLUSION: Within the limitations of this study, the results suggested that strength of zirconia ceramic crown is satisfactory for clinical use.
Axis, Cervical Vertebra ; Bicuspid ; Ceramics ; Collodion ; Crowns ; Incisor ; Molar ; Resin Cements ; Tooth ; Zirconium

Primary intracranial hemangiopericytoma is rare and resemble meningioma on imaging study. It shows meningeal attachment, and is usually isointense with gray matter on T1-weighted MR image with heterogeneous enhancement and prominent vascular flow voids on T2-weighted image. Cystic type of hemangiopericytoma is very rare and only 3 cases have been reported in the literature which arised in the middle fossa, cerebellum, and occipital area. Ventricular hemangiopericytomas were reported in 9 cases, and all of them were solid type. Authors experienced a peculiar case of cystic hemangiopericytoma in the 3rd ventricle and report it with review of the literature.
Cerebellum ; Hemangiopericytoma* ; Meningioma ; Third Ventricle*

BACKGROUND: Cerebrovascular accidents after coronary bypass surgery(CBS) are serious and responsible about 10% for postoperative mortality. Recently, the rate of cerebrovascular complication after CBS has increased with increasing number of the operations for high risk patients with old age, hypertension, diabetics and etc. This study was intended to identify the risk factors of cerebrovascular accident after CBS by reviewing the medical records of the patients who underwent CBS. MATERIALS AND METHOD: We reviewed the medical records and statistically analyzed the data of 185 patients who underwent CBS between March 1991 and July 1999. RESULT: The rate of cerebrovascular complication was 7.5%(14 patients) of which there were 5 deaths. Total number of postoperative death was 11 during the same period, and 45.5% of postoperative deaths were associated with cerebrovascular complication. Postoperative arrhythmia(p=0.0064), history of previous CVA(p=0.0090), bypass time(p= 0.0181), atherosclerosis of aorta(p=0.03575) and diabetics(p=0.0452) were statistically related with the development of postoperative cerebrovascular complication. Two patients underwent carotid endarterectomy concomitantly with CBS, neither of them developed cerebrovascular complications. The 3 patients over 75 years did not develop cerebrovascular complication after CBS. CONCLUSION: Risk factors associated with the development of postoperative cerebrovascular complication after CBS were postoperative arrhythmia, history of previous stroke, bypass time, atherosclerosis of aorta and diabetics.
Aorta ; Arrhythmias, Cardiac ; Atherosclerosis ; Cerebrovascular Disorders ; Coronary Artery Bypass ; Endarterectomy, Carotid ; Humans ; Hypertension ; Medical Records ; Mortality ; Postoperative Complications ; Risk Factors ; Stroke

Erlotinib is a tyrosine kinase inhibitor that acts on the epidermal growth factor receptor (EGFR). There have been many reports of the mucocutaneous side effects related to several EGFR inhibitors (EGFRIs). However, no case of black hairy tongue (BHT) associated with EGFRI has been reported. Herein, we report the first case of erlotinib-induced BHT in a 61-year-old man with advanced lung cancer. Considering recent use of EGFRIs worldwide, dermatologists should recognize the possible occurrence of BHT associated with EGFRIs such as erlotinib.
Butylated Hydroxytoluene ; Humans ; Lung ; Lung Neoplasms ; Middle Aged ; Protein-Tyrosine Kinases ; Quinazolines ; Receptor, Epidermal Growth Factor ; Tongue, Hairy ; Erlotinib Hydrochloride

Hemangiolymphangioma is an extremely rare malformation of both the lymphatic and blood vessels. To date, however, there are no reports in the literature of a hemangiolymphangioma of the testis. An 84-year-old man visited our hospital for investigation of a 1-month episode of a rapidly growing mass in his right scrotum. Scrotal ultrasonography revealed a multilobulated mass with septation in the testis. Testicular tumor markers were within the normal limit. Radical orchiectomy was performed. At surgery, a red, wide-based, nodular tumor was found on the testis. Histological examination of the resected specimen showed it to be a cavernous hemangiolymphangioma. Here we report this first case of a cavernous hemangiolymphangioma of the testis without cutaneous hemangiomatosis in an elderly patient.
Aged ; Aged, 80 and over ; Blood Vessels ; Caves ; Hemangioma ; Humans ; Lymphangioma ; Orchiectomy ; Scrotum ; Testis ; Biomarkers, Tumor

Linear focal elastosis (LFE) is a rare dermal elastosis characterized by hypertrophic yellowish linear plaques and increased abnormal elastic tissues in the lumbosacral area. Although the pathogenesis of this disorder remains unknown, it may be associated with keloidal repair process (KRP) of elastic tissues in striae distensae (SD), because there have been some reported cases of LFE accompanied by SD. We herein report a 14-year-old boy with LFE following SD in the lumbar region. Our case supports the hypothesis of KRP in the pathogenesis of LFE. Immunohistochemical study for transforming growth factor-beta (TGF-beta) was negative. Therefore, we assume that the pathogenesis of KRP in LFE is different from that of keloid development, which is the TGF-beta signaling pathway.
Adolescent ; Elastic Tissue ; Humans ; Keloid ; Lumbosacral Region ; Striae Distensae ; Transforming Growth Factor beta

Isopropylantipyrine is one of the pyrazolon derivatives which are nonsteroidal anti-inflammatory drugs (NSAIDs) with potent antipyretic and pain-relieving properties. It has been known that pyrazolon-hypersensitive patients, in contrast to ASA-sensitive patients, could safely use other NSAIDs. We describe two Korean patients with isopropylantipyrine hypersensitivity without ASA/NSAID hypersensitivity.
Anti-Inflammatory Agents, Non-Steroidal ; Humans ; Hypersensitivity*

Herpes zoster is acute viral infection characterized by the appearance of vesicles that occur on the skin and mucous membrane along the pathway of an involved sensory nerve. The incidence is increased in those who have history of trauma, malignant tumor, radiation therapy and the immuno-suppressive drug users. Although herpes zoster is usually as benign viral infection, complications may occur especially when cranial nerves are involved. So careful treatment is necessary when cranial nerves are involved. We have treated two cases. One is involved trigeminal nerve mandibular branch, another maxillary branch. We have used conservative therapy, pain control, acyclovir on this area and obtained good result. After 17 and 8 months respectively, no complications occur in our two cases. So we present two cases with review of literature.
Acyclovir ; Cranial Nerves ; Drug Users ; Herpes Zoster* ; Humans ; Incidence ; Mucous Membrane ; Skin ; Trigeminal Nerve

Fungal infection of intracardiac pacing wire is very rare. We experienced a case of patient with functioning transvenous pacemaker lead, inserted 3 years previously, which was completely encased in a large thrombus infected with aspergillus. The lung biopsy also confirmed aspergillus infection.
Aspergillosis ; Aspergillus* ; Biopsy ; Humans ; Lung ; Pacemaker, Artificial ; Thrombosis*