PURPOSE: To assess the role and efficacy of radiologic intervention in the adult patients with esophagobronchial fistula. MATERIALS AND METHODS: Radiologic intervertion was performed in 4 patients with esophagobronchial fistula. We tried direct occlusion of fistula tract by glue(histoacylate 0.4cc + lipiodol 0.3cc) and coil in 2 patients and performed presurgical wire insertion by using 8F curved catheter via esophageal opening of fistula tract. The latter procedure was carled out to detect the fistula tract easily at operation. RESULTS: Direct occlusions of fistula tract by glue and coil were performed only to fail in 2 patients. Pre-surgical wire incertion by using 8F curred catheter under guidance of fluroscopy in 3 patients were helpful in detecting fistula tract at operation. CONCLUSION: Direct occlusion of the fistulous tract in esophagobronchial fistulas was ineffective. However, presur- gical wire insertion by using cured catheter under fluroscopy guidance is helpful to detect the fistula tract easily at operation.
Adhesives ; Adult* ; Catheters ; Ethiodized Oil ; Fistula* ; Humans

Purpose: This study aimed to report dental implant removal due to various instances of implant abutment and screw fractures. In this study, the indications for implant removal due to mechanical failure were documented.Materials and Methods: This study investigated patients referred to the Department of Oral and Maxillofacial Surgery of our hospital for implant removal surgery due to abutment screw fractures between 2010 and 2024. The study included 13 patients with 15 implants. Patient age, sex, implant location, fracture site, and implant system type were investigated. Results: Fifteen implants were removed in 13 patients with abutment and screw fractures. The mean age of the patients was 63.4 years. Moreover, a total of 11 men and two women were included in the analysis. The implants were most commonly placed in the molar region, with a maxilla-to-mandible ratio of 9:6. The screw fracture locations were categorized into the cervical, middle, or apical thirds. Their corresponding numbers were two, eight, and four, respectively. The implant system and manufacturer demonstrated no significant correlation with screw fractures. Conclusion When a screw fracture occurs in the lower third of a dental implant, removal is often difficult. Regular check-ups and periodic screw tightening are mandatory to prevent severe complications such as screw or abutment fractures. Failed implants should be removed and replaced with new dental implants.

Purpose: This study aimed to report dental implant removal due to various instances of implant abutment and screw fractures. In this study, the indications for implant removal due to mechanical failure were documented.Materials and Methods: This study investigated patients referred to the Department of Oral and Maxillofacial Surgery of our hospital for implant removal surgery due to abutment screw fractures between 2010 and 2024. The study included 13 patients with 15 implants. Patient age, sex, implant location, fracture site, and implant system type were investigated. Results: Fifteen implants were removed in 13 patients with abutment and screw fractures. The mean age of the patients was 63.4 years. Moreover, a total of 11 men and two women were included in the analysis. The implants were most commonly placed in the molar region, with a maxilla-to-mandible ratio of 9:6. The screw fracture locations were categorized into the cervical, middle, or apical thirds. Their corresponding numbers were two, eight, and four, respectively. The implant system and manufacturer demonstrated no significant correlation with screw fractures. Conclusion When a screw fracture occurs in the lower third of a dental implant, removal is often difficult. Regular check-ups and periodic screw tightening are mandatory to prevent severe complications such as screw or abutment fractures. Failed implants should be removed and replaced with new dental implants.

Purpose: This study aimed to report dental implant removal due to various instances of implant abutment and screw fractures. In this study, the indications for implant removal due to mechanical failure were documented.Materials and Methods: This study investigated patients referred to the Department of Oral and Maxillofacial Surgery of our hospital for implant removal surgery due to abutment screw fractures between 2010 and 2024. The study included 13 patients with 15 implants. Patient age, sex, implant location, fracture site, and implant system type were investigated. Results: Fifteen implants were removed in 13 patients with abutment and screw fractures. The mean age of the patients was 63.4 years. Moreover, a total of 11 men and two women were included in the analysis. The implants were most commonly placed in the molar region, with a maxilla-to-mandible ratio of 9:6. The screw fracture locations were categorized into the cervical, middle, or apical thirds. Their corresponding numbers were two, eight, and four, respectively. The implant system and manufacturer demonstrated no significant correlation with screw fractures. Conclusion When a screw fracture occurs in the lower third of a dental implant, removal is often difficult. Regular check-ups and periodic screw tightening are mandatory to prevent severe complications such as screw or abutment fractures. Failed implants should be removed and replaced with new dental implants.

Branchio-oto-renal (BOR) syndrome is a clinically heterogeneous autosomal dominant form of syndromic hearing loss characterized by variable hearing impairment, malformations of the pinnae, the presence of branchial arch remnants, and various renal abnormalities. BOR syndrome is caused by mutations in EYA1 and SIX1, which are critical to organogenesis and are expressed together in developing otic, branchial, and renal tissue. Branchio-otic (BO) syndrome comprises branchial fistulas and preauricular pits, but lacks renal anomalies. We present a case of BO syndrome in 30year-old man with a review of the literature.
Branchial Region ; Branchio-Oto-Renal Syndrome ; Branchioma ; Fistula ; Hearing Loss ; Organogenesis

The two most common causes of acute arterial occlusion are embolism and thrombosis in sity. They are mainly originated from the cardiovascular sources. About 70-80 per cent of occlusions occur in the axial limb vessels. Therapeutic options include supportive measures, pharmacologic treatment, surgery, and non-operative interventions. There have been several successful case reports using percutaneous aspiration thromboembolectomy with the advent of new instruments and technical imprevement. We report a case of 70-year-old male with acute anterior wall myocardial infaction who experienced acute embolic arterial occlusion of the left popliteal artery from mural thrombus in the left ventricular apex. It wan managed successfully by percutaneous aspiration thromboembolectomy.
Aged ; Embolism ; Embolism and Thrombosis ; Extremities ; Humans ; Male ; Popliteal Artery ; Thrombosis

Inflammatory pseudotumors are benign lesions that have been described most commonly in the lung, and also in a wide variety of extrapulmonary sites. But, they appear to be rare in the female genital tract and especially in the uterus. This rare tumor simulates a true neoplasm both clinically and morphologically and presents a diagnostic and therapeutic dilemma. We report a case of inflammatory pseudotumor of uterus, which was misdiagnosed as uterine leiomyoma preoperatively. To the best of our knowledge, the case reported here is the fifth inflammatory pseudotumor of the uterus in the world, and the first in Korea.
Female ; Granuloma, Plasma Cell* ; Humans ; Korea ; Leiomyoma ; Lung ; Uterus*

BACKGROUND: The literature on variations of rib is limited. Very little has been written in the radiological journal of this country on the subject. It seemed of interest to investigate the nature and incidence of congenital variations in a series of routine chest roentgenograms. The topic of rib variations has not been covered extensively in the radiological journals in Korea. This has presented an opportunity to investigate the nature, type, shape and incidences of congenital rib variations in normal Korean adults from a series of routine roentgenograms. METHODS: Chest radiographs of 5,000 adults (,) who visited our hospital for a routine check-up or for employment physical examinations from January 1996 to September 1998, were consecutively reviewed. The sex distribution consisted of 2,827 male males and 2,173 females (ratio of 1.3:1) with the age range between 19 and 65 years (mean age: 34.6 years). The chest PAs was were analyzed for the presence, type, location, and shape of the rib variations (.) From this data, and we the incidence of each type of variations was calculated. RESULTS: Seventy-six of the 5000 adults (1.52%), 63 male (2.23%) and 13 female (0.6%), showed 88 cases of rib variation (Table 1). Bifid rib (n=35) was the The most common variation was the bifid rib (n=35), followed by hypoplasia of the rib (n=22), flaring of the rib (n=18), bridging of the ribs (n=7), cervical ribs (n=3), and fusion of between ribs (n=3) (Table 2). (New paragraph)Bifid The bifid rib (Table 1) was found most frequent in the right fourth rib (12/35, 34.3%), followed by the left fifth rib (6/35, 17.1%) and right third rib (6/35, 17.1%). Hypoplasia of the rib was common in first rib (20/22, 90.9%). Flaring of the rib was common at fourth rib (8/18. 44.4%, right and left combined) (,) and bridging between ribs was common between first and second rib (3/7, 42.9%). CONCLUSION: The percentage of incidence of rib variations in adults was 1.52%. Bifid rib was the most common variation, followed by hypoplasia, flaring, bridging, cervical rib, and fusion of ribs(,) in decreasing order.
Adult ; Cervical Rib ; Employment ; Female ; Humans ; Incidence* ; Korea ; Male ; Physical Examination ; Radiography ; Radiography, Thoracic* ; Ribs* ; Sex Distribution ; Thorax*

Adenoviridae ; Animals ; Epithelial Cells ; Epithelium ; Genetic Therapy ; Mice ; Mouth Mucosa ; Organ Culture Techniques ; Palate ; Stainless Steel ; Tongue ; Viruses

BACKGROUND AND OBJECTIVES: Oxygen radical scavengers and inhibitors are known to have protective functions (or roles) against hypoxia and noise exposure in the cochlea and brain. The purpose of this study was to examine the toxic effect of oxygen radicals (xanthine oxidase and hypoxanthine) on cultured mouse facial nerve Schwann cells, and determine if antioxidants (TPEN and DFO) might ptotect Schwann cells from oxidant-induced neurotoxicity. MATERIALS AND METHODS: Dissociated cell cultures were prepared from the facial nerve of a mouse. After dissociation of Schwann cells, isolated cells were washed, resuspended in feeding medium, and plated onto poly-L-lysine-coated Aclar plastic cover slips (12 mm diameter) in petri dishes or in 96 well multichambers at cell density of 2X105 ceIls/coverslip or lX10(5) ceIls/we11. The feeding medium consisted of Eagle's minimum essential medium (MEM) containing 5% horse serum, 5 mg/ml D-glucose, and 25 ng/ml gentamicin. Cultures were grown in 5% CO2/95% atmosphere at 37degreesC, and the medium was renewed twice a week. Cultures grown for 4-5 days were utilized for experiments. Oxygen radical exposure was done using XO and HX, and antioxidant pretreatment was carried out using tetrakis (2-pyridylmethyl) ethylenediamine (TPEN) and desferrioxamine (DFO). Cytotoxicity assay was performed by MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide cytotoxic assay and inverted microscopy. RESULTS: Cell viability of cultured mouse Schwann cells treated with markedly decreased in a dose-dependent manner. Cultured mouse Schwann cells exposed to XO/HX for 4 hours showed degenerative changes such as the decrease of cell number and process. Pretreatment of 80 uM TPEN for 2 hours increased remarkably the cell viability of cultured Schwann cells exposed to 20 mU/ml XO/0.1 mM HX, while DFO did not show any protective effects on oxidant-induced neurotoxicity in these cultures. CONCLUSION: It is suggested that oxygen radicals induce neurotoxic effect on cultured mouse Schwann cells, and that selective antioxidants such as TPEN is very effective in blocking oxidant-induced neurotoxicity.
Animals ; Anoxia ; Antioxidants* ; Atmosphere ; Brain ; Cell Count ; Cell Culture Techniques ; Cell Survival ; Cochlea ; Deferoxamine ; Facial Nerve ; Gentamicins ; Glucose ; Horses ; Mice* ; Microscopy ; Noise ; Oxidoreductases ; Oxygen* ; Plastics ; Reactive Oxygen Species* ; Schwann Cells*