he Magnetic. resonance imaging has been used widely to evaluate the disk position without any interruption of the TMJ structures, and the dynamic MRI presenting computed serial imaging or the video-recorded simulation images is thought to be very effective to evaluate the disk position under function. This is to study the correlation between the clinical diagnosis and the findings of dynamic MRI for diagnosis of internal derangement of the 7 patients were examined clinically, and the movement of TMJ meniscus was reviewed in the dynamic MRI. MRI was very reliable to diagnose the amount of anterior displacement of articular disc, the structural abnormality of temporomandibular joint, the cause of functional limitation, and to differentiate the muscle related pain & dysfunction.
Diagnosis ; Humans ; Magnetic Resonance Imaging* ; Temporomandibular Joint Disorders* ; Temporomandibular Joint*

No abstract available.
Liver Abscess* ; Liver*

Single photon emission computed tomographic(SPECT) imaging, performed at oral and maxillofacial surgery department, is valuable in assessing temporomandibular dysfunction, looking for metastases in patients with malignancies, diagnosing facial asymmetry. Conventional planar scintigraphy is limited by two-dimensional representation of three-dimensional structures. The SPECT exam, by sectioning through a distribution of tracer, eliminates the obscuring effects of tracer located outside the plane of interest. In our department, we used this image for four type cases retrospectively. 1. Those patients who have facial asymmetry 2. To find metastases in patients with malignacies 3. In combination with magnetic resonance imagine, to confirm the diagnosis of internal joint derangement 4. To evaluate the viability of grafted bone. Recently, this image is able to be used in those patients whose symptoms etiology cannot be explained by other diagnostic techniques.
Diagnosis ; Facial Asymmetry ; Humans ; Joints ; Neoplasm Metastasis ; Radionuclide Imaging ; Retrospective Studies ; Surgery, Oral ; Tomography, Emission-Computed, Single-Photon* ; Transplants

Authors reviewed the clinical features and diagnostic approaches in 70 patients of cysticercosis who had been diagnosed at Seoul National University Hospital from 1978 to 1982. The ages of the 70 patients ranged from 4 to 65 years at the time of the diagnosis (mean age 36.9years) with 62.9 percent between the age 20 and 50 years. Male were more frequently involved than female (2:1). Forty-seven patients (67.1%) presented with neurological symptoms and signs, among which epileptic seizures (66%) was the most common one. Subcutaneous nodules were observed in 36 patients (50.1%) and 24 patients of them had no abnomal clinical findings other than subcutaneous nodules. Computed tomography (CT), employed in 46 patients, showed multiple low densties in 31 patients (67.4%).
Cysticercosis* ; Diagnosis ; Epilepsy ; Female ; Humans ; Male ; Seoul

Authors reviewed the clinical features and diagnostic approaches in 70 patients of cysticercosis who had been diagnosed at Seoul National University Hospital from 1978 to 1982. The ages of the 70 patients ranged from 4 to 65 years at the time of the diagnosis (mean age 36.9years) with 62.9 percent between the age 20 and 50 years. Male were more frequently involved than female (2:1). Forty-seven patients (67.1%) presented with neurological symptoms and signs, among which epileptic seizures (66%) was the most common one. Subcutaneous nodules were observed in 36 patients (50.1%) and 24 patients of them had no abnomal clinical findings other than subcutaneous nodules. Computed tomography (CT), employed in 46 patients, showed multiple low densties in 31 patients (67.4%).
Cysticercosis* ; Diagnosis ; Epilepsy ; Female ; Humans ; Male ; Seoul

Mandibular retrusion showing the facial problem with a marked maxillarry incisors protrusion and chin deficiency, resulting in a highly convex profile is uncommon in Korea.. The large incisor overjet and deep-bite create functional limitations and unpleasing esthetic result. The majority of theses cases are susceptible to correction by orthodontic therapeutic methods. But severe Class II retrognathic cases in which orthodontic treatment alone has not been capable of achieving good results. Orthognathic surgery offers several approaches. In this case, mandibular advancement by bilateral sagittal split ramus osteotomy and augmentation genioplasty has a special surgical problems. The suprahyoid muscle gorup are lengthened if the body of the mandible is surgically repositioned anteriorly. Instability of results and relapse return to original position shoud predicted during post-surgical muscular readjustment.. To maintain maximum correction with this technique, it is suggested that the mandibular body be well rotated forward at time of surgical intervention and overcorrected anteriory as much as possible. So, the authors report the case with review of concerned literature.
Chin ; Genioplasty ; Incisor ; Korea ; Mandible ; Mandibular Advancement ; Orthognathic Surgery ; Osteotomy, Sagittal Split Ramus ; Overbite ; Recurrence ; Retrognathia*

Glucose prevents the development of diabetes induced by alloxan. In the present study, the protective mechanism of glucose against alloxan-induced beta-cell damage was investigated using HIT-T 15 cell, a Syrian hamster transformed beta-cell line. Alloxan caused beta-cell damages with DNA fragmentation, inhibition of glucose-stimulated insulin release, and decrease of cellular ATP level, but all of these beta-cell damages by alloxan were prevented by the presence of 20 mM glucose. Oligomycin, a specific inhibitor of ATP synthase, completely abolished the protective effects of glucose against alloxan-induced cell damage. Furthermore, treatment of nuclei isolated from HIT-T15 cells with ATP significantly prevented the DNA fragmentation induced by Ca2+. The results indicate that ATP produced during glucose metabolism plays a pivotal role in the protection of glucose against alloxan-induced beta-cell damage.
Adenosine Triphosphate/pharmacology ; Adenosine Triphosphate/metabolism ; Alloxan/pharmacology* ; Animal ; B-Lymphocytes/metabolism ; B-Lymphocytes/drug effects* ; B-Lymphocytes/cytology ; Calcium/pharmacology ; Cell Line ; Cell Nucleus/genetics ; Cell Nucleus/drug effects ; Cell Survival ; DNA/metabolism ; DNA/genetics ; DNA/drug effects ; DNA Fragmentation ; Dose-Response Relationship, Drug ; Egtazic Acid/pharmacology ; Glucose/pharmacology* ; Insulin/secretion ; Oligomycins/pharmacology

Angiosarcoma is a rare malignant tumor of endothelial cell origin. Histopathologically, varied differentiation may be observed even within the same tumor. Epithelioid angiosarcoma is one subset of poorly differentiated angiosarcoma which is a rare variant. We report a case of epithelioid angiosarcoma of the scalp in a 59-year-old man. The patient had a painful solitary, 2x3 cm sized, dome-shaped, firm, erythematous to purplish nodule with crust on the vertex of the scalp. Histopathologically, the tumor was chiefly composed of solid sheets of atypical epithelioid cells with prominent eosinophilic cytoplasm, a large vesicular nuclei, and occasional intracytoplasmic vacuoles. Well to moderately differentiated areas with irregular vascular channel-like structures lined by atypical hyperchromatic endothelial cells were also seen in the peripheral areas of the tumor. Immunohistochemically, the tumor cells were positive with CD31 which is sensitive marker of endothelial cell.
Cytoplasm ; Endothelial Cells ; Eosinophils ; Epithelioid Cells ; Hemangiosarcoma* ; Humans ; Middle Aged ; Scalp* ; Vacuoles

Desmoplastic trichilemmoma is a rare variant of trichilemmoma characterized by typical features of trichilemmoma with abundant desmoplastic stroma. We report herein a 54-year-old man presented with 2-year history of a solitary bean sized verrucous nodule on the occipital scalp. Histologically, the tumor showed a well-defined lobular growth extending from the epidermis into the dermis with abundant central desmoplastic stroma. Epithelial lobules at the margins of the neoplasm showed the typical features of trichilemmoma composed of glycogen-rich clear cells and peripheral palisading columnar cells. In contrast, at the center the cells assume a more random pattern of cords and strands traversed by the hyaline stroma, mimicking invasive carcinoma. It was diagnosed desmoplastic trichilemmoma by the distinctive histologic appearance and totally excised.
Dermis ; Epidermis ; Humans ; Hyalin ; Middle Aged ; Scalp

This is a case report and review of literature that deals with hemifacial microsomia corrected by costochondral graft, Lefort I osteotomy and bilateral intraoral sagittal split ramus osteotomy. Patient, 23 years old female, had visited to treat the esthetic problem due to a deviation of jaw. On the basis of clinical and radiographic examinations, she was diagnosed as hemifacial microsomia. First, costochondral graft was performed to bridge the defect between glenoid fossa and body of mandible. After 11 months,. Patient was performed a Lefort I osteotomy and bilateral intraoral sagittal split ramus osteotomy to create a symmetric jaw. Patient was satiesfied with final esthetics and there have been no evidence of infection ill now.
Esthetics ; Female ; Goldenhar Syndrome* ; Humans ; Jaw ; Mandible ; Osteotomy ; Osteotomy, Sagittal Split Ramus ; Transplants