No abstract available.
Hernia, Inguinal*

The purpose of this study was to investigate the causes of food impaction and to explore solutions as well. For this study, 39 patients with food impaction wee selected. 77 contact areas in these patients were investigated mobility, tightness of contact area, gingival index, plaque index, attachment loss, alveolar bone loss, proximal caries, marginal ridge distance and occlusal relationships. The results were as follows ; 1. Teeth without distal support were found to be the most frequent site of food impaction (41.6%). Food impaction was found to be more frequent in the upper teeth (66.2%) than the lower teeth (33.8%). 2. Food impaction was found in tight contact cases (71.4%). Alveolar bone loss was not found in the early stage of food impaction (83.1%) 3. The distance between the marginal ridges of food impaction sites (mean=0.48mm) was shorter than that of the control group. (mean=0.77mm) (p<0.001) 4. In 18.2% of t he cases, proximal carries were found at the food impaction site. 5. Food impaction affected patient's occlusion with the following frequencies ; cusp to marginal ridge relationship (72.7%), cusp to fossa relationship (3.9%) and stepped relationship (23.4%).
Alveolar Bone Loss ; Humans ; Periodontal Index ; Tooth

The mechanism of cytolysis by complement attack of nucleated cells(NC) is of special interest in comparison to that of red blood cells. It is known that NC death by membrane attack comples, C5b-9, is caused by many factors, i.e., efficiency of complex assembly, activation of intrinsic metabolic pathway by signal transduction, cytotoxic effect of the channel itself and natural repair ability. These factors suggest that colloid osmotic lysis, known in red blood cells, does not fully explain the complement-mediated cell death of NC. In this study, the authors investigated correlation between biochemical and morphological changes to prove "Ca2+-mediated metabolic death"8~13) representing a mechanism of NC death caused by C5b-9 attack. The L1210 cells, mouse leukemic cell line carrying small complement channel(TAC5b-91) were used in the experiments. The amounts of intracellular adenine nucleotides to extracellular Ca2+, ouabain, KC1 and dextran were analyzed by bioluminescence method using luminometer. Cell viability was checked by 0.4% trypan blue dye and LDH release. Morphological observation of TAC5b-91 was done by immunocytochemical staining and electron microscope. The results were as follows: 1) The release of ATP, ADP and AMP followed by cell death was rapid and progressive along the incubation time at 37 degrees C and it was accelerated in 1.5 mM of [Ca2+]0. 2) There was no evidence of ATP repairment in the TAC5b-91. 3) Extracellular KC1(150 mM), dextran(0.66 mM) and ATP supplement(0.2 microM) could not effectively inhibit ATP depletion and cell death. Ouabain(27 and 100 microM) enhanced cell death and could not completely prevent ATP loss. 4) Most of the mitochondria showed swelling, loss of cristae and Ca2+ deposit in matrix in the electron microscopic observation. Rapid, sustained and irreversible depletion of adenine nucleotides was due to Ca2+ deposit with destruction of mitochondria and also the leakage through transmembrane channels. Moreover this energy depletion was accelerated by high extracellular Ca2+ concentration. These results indicate that Ca2+-mediated, energy exhaustion is one of the mechanisms of the metabolic cell death by C5b-9 attack of NC.
Mice ; Animals

22 cases of giant cell tumor of bone treated between 1973 and 1979 have been reviewed after a miaimum follow-up of two years and following results were obtaind. 1. Fourteen cases (63%) were in the third and fourth decade. 2. Fourteen cases (63%) were located around the knee joint. 3. Five (42%) of the twelve tumors treated by curettage and bone graft recurred. Five tumors treated by En bloc resection and two tumors treated by amputation had no recurrences. 4. Five of six recurrences occured within two years after mitial treatment.
Amputation ; Curettage ; Follow-Up Studies ; Giant Cell Tumor of Bone ; Giant Cell Tumors ; Giant Cells ; Knee Joint ; Recurrence ; Transplants

No Abstract Available.
Cytokines* ; Perforin* ; Shwartzman Phenomenon* ; Vibrio vulnificus* ; Vibrio*

BACKGROUND: Fine Needle Aspiration Cytology (FNAC) is widely accepted as the most accurate procedure to differentiate malignant from benign thyroid nodules. It is a simple, safe, and inexpensive procedure, and the accuracy of FNAC is relatively high; however, its success usually depends upon the skill in using the aspiration technique and the experience and skill of the cytologist. The authors confirmed the diagnostic value of preoperative FNAC in differential diagnosis of thyroid nodules treated by the surgical resection. METHODS: Three hundred fifty specimens were taken in the Department of Surgery, Inje University College of Medicine, from July 1990 to June 1996. Fifty-one males and 299 females with ages ranging from 11 to 73 years were enrolled. The cytology of FNAC was compared to the final histologic diagnosis. RESULTS: The number of inadequate smears (or sampling error) was 15.7%. Preoperative cytologic diagnoses was consisted of 198 cases of benign disease (92 cases of nodular goiters, 96 cases of follicular lesion types III, and 10 cases of thyroiditis), 12 cases of highly suspicious malignant lesions (follicular lesions type II), and 85 cases of malignant disease (71 cases of papillary carcinomas and 14 cases of follicular lesions type I). Histologic diagnoses consisted of nodular goiters in 116 cases, adenomas in 66 cases, thyroiditis in 9 cases, papillary carcinomas in 84 cases, and follicular carcinomas in 20 cases. These results has an 84.6% sensitivity, a 95.2% specificity, a 15.3% false negative rate, and a 4.7% false positive rate. In the fifty-five cases of inadequate sampling, 13 cases (23.6%) were malignant lesions histologically. In the 16 cases proven as false negative, nine cases were papillary carcinomas, and 7 cases were follicular carcinomas histologically. Thirteen cases (16.1% of 27 cases of cystic lesions) of cystic nodules revealed malignant neoplasms histologically. CONCLUSION: FNAC is a single, useful diagnostic procedure for the initial screening for malignancy in thyroid nodules. Performing repeated aspiration in cystic nodules and clinically suspicious cases could reduce inadeguate sampling and the false negative rate.
Adenoma ; Biopsy, Fine-Needle* ; Carcinoma, Papillary ; Diagnosis ; Diagnosis, Differential* ; Female ; Goiter, Nodular ; Humans ; Male ; Mass Screening ; Sensitivity and Specificity ; Thyroid Gland* ; Thyroid Nodule* ; Thyroiditis

Facial nerve schwannomas are uncommon tumors that involve the facial nerve. They are frequently misdiagnosed due to subtle and variable clinical presentations. The aim of management of facial nerve schwannoma is the complete removal of tumor, combined with preservation or restoration of facial nerve continuity. The site, size of the tumor, age, preoperative hearing level and facial nerve function are consider as decision making factors. But, it is management dilemma to decompress or resect the tumor. The purpose of this paper is to discuss to surgical management of complete removal of tumor and successful facial nerve reconstruction. Recently, we experienced three patients with facial nerve schwannoma with relatively good surgical result.
Decision Making ; Facial Nerve* ; Hearing ; Humans ; Neurilemmoma*

We describe a case of mycosis fungoides (infiltrative plaque type) in an 86-year-old male. He had experienced dark erythematous round plaques on the face, trunk, buttock, upper and lower extremities. Histopathologic findings revealed band-like superficial dermal infiltration of atypical lymphocytes, epidermotropism, and Pautrier's microabscess in the epidermis. The infiltrative cells were positivly stained with CD3, but not with a CD20. He was treated with a topical application of 0.2% carmustine, but he died due to poor general condition and septicemia.
Aged, 80 and over ; Buttocks ; Carmustine ; Epidermis ; Humans ; Lower Extremity ; Lymphocytes ; Male ; Mycosis Fungoides* ; Sepsis

Cervical tab is one of rare developmental anomalies of the brachial apparatus which appears as firm, protruding papule or nodule on the neck along the line of anterior border of the sternocleidomastoid muscle. A 5 year-old male patient developed a pea sized, movable, semi-solid mass on the lower portion of right sternocleidomastoid muscle area. On microscopic examination, well-marginated oval shaped cartilage was present. Individual cells in the lacunae had ample cytoplasm and eccentric nucleus. Verhoeff-van Gieson stained section of the mass showed cartilage with a rich elastic network in the matrix, most heavily concentrated about the chondrocyte. We report a rare case of cervical tab manifesting as a skin-colored nodule on the sternocleidomastoid muscle area.
Cartilage ; Child, Preschool ; Chondrocytes ; Cytoplasm ; Humans ; Male ; Neck ; Peas

Linear focal elastosis is a new disease that clinically shows asymptomatic, palpable, striae-like lines extending horizontally across the middle and lower back and histologically a focal increase in elastic fibers separating the dermal collagen bundles. We report typical cases of linear focal elastosis clinically and histologically in three teenaged males.
Collagen ; Elastic Tissue ; Humans ; Male