No abstract available.
Temporomandibular Joint*

Three cases of human embryo of Carnegie stage 13 were described. The CR length of these embryos were 3.0-5.3mm. The authors made a reconstruction model using photograph, photocopy and computer. These embryos were characterized externally by 4 limb buds and 4 pairs of branchial arches, and internally closed otic pits, appearance of venous valves, septum primum and foramen primum in the heart, beginning of the right and left lung buds, appearance of lens disk.
Branchial Region ; Embryonic Structures* ; Heart ; Humans* ; Limb Buds ; Lung ; Venous Valves

No abstract available.

Myxofibrosarcomas (MFSs), which consist of multiple nodules with a variable cellular population in a myxoid matrix, are primarily located in subcutaneous tissue. Pleomorphic hyalinizing angiectatic tumors (PHATs) are rare soft-tissue tumors characterized by a proliferation of highly pleomorphic spindle or polygonal cells and abundant ectatic blood vessels in cellular or myxoid stroma. We present here an unusual case of a high-grade MFS with a PHAT-like appearance. A 67-year-old man presented with an asymptomatic subcutaneous mass in the right forearm. The tumor had myxoid, hypo-, and hypercellular areas with highly pleomorphic spindle or polygonal tumor cells that showed frequent mitoses and nuclear pseudoinclusions. Foci of punctuate necrosis and inflammatory infiltration were present throughout the tumor, and abundant ectatic, thick-walled vessels containing blood clots were noted. The tumor cells were immunohistochemically positive for vimentin but negative for CD34, S-100 protein, smooth muscle actin, desmin, and bcl-2.
Actins ; Aged ; Blood Vessels ; Desmin ; Forearm ; Humans ; Hyalin ; Mitosis ; Muscle, Smooth ; Necrosis ; S100 Proteins ; Sarcoma ; Subcutaneous Tissue ; Vimentin

Faced with patients who underwent TURP and who were given antibiotics until catheter-removal, usually complain of urinary frequency or burning on ruination and showing sterile urine (less than l00 bacteria per ml., in clean-caught midstream about 24 hours after catheter-removal), we often hesitate to make a decision whether they should be given antibiotics or not. So we divided 27 such patients into three groups : group l ; 7 patients, no additional antibiotics after catheter-removal, group 2; 12 patients, antibiotics for one week after catheter-removal and we performed weekly urine culture for clarifying the necessity of additional antibiotic therapy and its appropriate duration, if necessary. The following results and conclusions were obtained. I. Group l showed bacteriuria in 86%(6 of 7 patients). 2.Group 2 and 3 showed bacteriuria 5%(1 of 20 patients). 3. These data suggested that additional antibiotic therapy rather than stopping antibiotic therapy might be justified(P : less than 0.001). 4. Group 2 showed no bacteriuria and group 3 showed bacteriuria in one patient which disappeared promptly. Namely, there was no practical difference in the incidence of bacteriuria between the two groups. 5. 9 cases of fungiuria were found, all of which developed in patients given antibiotics perioperatively for more than 2 weeks. 6. Considering the above items and cost-effectiveness, a week`s additional antibiotic therapy is probably an appropriate answer to treating the above-mentioned patients. 7. Main causative organism in post-TURP bacteriuria was Pseudomonas spp(4of 7 cases).
Anti-Bacterial Agents* ; Bacteria ; Bacteriuria ; Burns ; Humans ; Incidence ; Pseudomonas ; Transurethral Resection of Prostate* ; Urinary Catheters

The effect of androgen in the development of the normal prostate and the evolution of benign prostatic hypertrophy (BPH), and prostatic adenocarcinoma has been proven. In addition to androgen, estrogen and progesterone are also thought to play a role in the pathogenesis of BPH and carcinoma. However, their exact roles are not yet known because there is no conclusive evidence. Thirty cases of prostatic adenocarcinoma and 16 cases of BPH were studied. Immunohistochemical staining for estrogen receptor (ER) and progesterone receptor (PR) in epithelial and stromal cells, respectively was performed and the results were assessed semiquantitatively based on the number of positive cells per 100 total cells. Slides were scored as negative; less than 5% of cells, 1 ; 6~15% of cells, 2 ; 16~25% of cells, and 3 ; more than 26% of cells. The relationship between ER and PR expression and the patient's age, histologic grade, and clinical stage was evaluated in prostatic adenocarcinomas. ER was negative in epithelial and in stromal cells for all prostatic adenocarcinomas and BPH cases. The PR expression in epithelial cells and in stromal cells of BPH was noted in 15 (93.8%) and 16 (100.0%) out of 16, respectively. The PR expression of carcinoma cells and stromal cells in prostatic adenocarcinoma was found in 28 (93.3%) and 23 out of 30 (76.7%), respectively. The PR immunoreactivities of stromal cells around carcinoma were 3 in 18 cases, 2 in one case, and 1 in 4 cases, but those of epithelial and stromal cells of BPH and carcinoma cells of prostatic carcinoma were similar to each other with a value of 3 in most cases. The PR expression rate of stromal cells around carcinoma was significantly correlated with the patient's age (p=0.044), but not with histologic grade and clinical stage. In summary, estrogen does not have a direct effect on the biological behavior of BPH and prostatic adenocarcinoma, but progesterone appears to play a role in the pathogenesis of BPH and prostatic adenocarcinoma. Further studies should clarify the biological role of progesterone in the human prostate.
Adenocarcinoma* ; Epithelial Cells ; Estrogens* ; Humans ; Progesterone* ; Prostate ; Prostatic Hyperplasia* ; Receptors, Progesterone* ; Stromal Cells

This study was undertaken to elucidate any quantitative abnormalities of Tlymphocyte subsets (helper/inducer T cell; T cell and suppressor/cytotoxic T cell: T cell) and IgE levels in the peripheraI blood in atopic dermatitis patients by using monoclonal antibodies and enzyme immunoassay, respectively. In addition we have tried to ascertain whether there are any correlations betveen such immuiiologic abnormalities and the severity of the disease. The results showed that there were significant decrease in the mean percentage of T Cells and increase in the mean value of T/T cell ratios in patients with atopic dermatitis. These changes seem to relate to the severity of the disease when evaluated as groups. A significant increase in the mean value of serum IgE was found in atopic dermatitis patients and the change was related to the severity of the disease. But increase of serum IgE level did not correlated closely with the T cell abnormalities in each patients.
Antibodies, Monoclonal ; Dermatitis, Atopic* ; Humans ; Immunoenzyme Techniques ; Immunoglobulin E* ; T-Lymphocyte Subsets* ; T-Lymphocytes

The authors investigated the radioallergosorbent test (RAST) for the specific IgE and the prick test with hose dust mite in 129 patients with atopic dermatitis(AD) wit4 four or more family numbers. RAST and prick test results were described according to family background of respiratory atopy(RA) and severity of AD. The results are summarized as follows : l. A comparison between the prick test results and RAST reactions gave a concordance of 88%. The prick test was more sensitive than the RAST. 2. The level of specific IgE in patients with personal history(PH) or family history(FH) of RA was significantly increased compared to those in patients with only AD. 3. In patients without PH and FH of RA, the level of specific IgE in patients with FH of AD was significantly increased compared to those in patients without FH of AD. 4. The level of specific IgE did not reflect the severity of AD. From the above results, it could be concluded that type I allergy to house dust mite is not directly related to AD and it occurs predominantly in those patients with AD wha have a predisposition to RA.
Dermatitis, Atopic* ; Dust* ; Humans ; Hydrogen-Ion Concentration ; Hypersensitivity* ; Immunoglobulin E ; Mites ; Pyroglyphidae* ; Radioallergosorbent Test

Detailed mechanism of uterine cervical cancer progression still remains unclear. Altered programmed cell death (apoptosis) and cellular proliferation are associated with the development of neoplasia. The authors investigated the expressions of bcl-2, which inhibit apoptosis, and caspase-3, which is involved in the induction of apoptosis and has been considered to be correlated with apoptosis, and proliferating activity according to the degree of malignancy in the squamous neoplasia of the uterine cervix. Correlation between bcl-2 and caspase-3 expression and proliferating activity was done. The materials were low grade squamous intraepithelial lesions (LSIL, n=15), high-grade squamous intraepithelial lesions (HSIL, n=15), microinvasive squamous cell carcinoma (n=15), and squamous cell carcinoma (n=15). Immunohistochemical stainings for bcl-2, caspase-3, and MIB-1 were done. bcl-2 and MIB-1 expressions were progressively increased in accordance with the increasing degree of malignancy, but caspase-3 immunoreactivity was higher in LSIL than invasive cancers. There was an inverse relationship between bcl-2 and caspase-3 expression, but the difference did not reach statistical significance. No significant correlation between MIB-1, bcl-2, and caspase-3 expressions was observed. These results suggest that an inhibition of apoptosis and the augmentation of proliferating activity of tumor cells might be separately involved in the development of the cervical squamous neoplasia.
Apoptosis ; Carcinoma, Squamous Cell ; Caspase 3* ; Cell Death ; Cell Proliferation ; Cervix Uteri* ; Female ; Uterine Cervical Neoplasms

OBJECTIVE: The aim of the study was to evaluate the corelation between an expression of lectins and survival of patients with squamous cell carcinoma of uterine cervix. METHODS: The cell surface carbohydrate profile of formalin-fixed paraffin embedded tissue section of squamous cell carcinoma of the uterine cervix was evaluated using ulex europaeus agglutinin(UEA-1), peanut agglutinin(PNA), dolichos biflorus agglutinin(DBA), soybean agglutinin(SBA) and lotus tetragonobus lectin(LTL) by the avidin-biotin complex method. Fifty-one cases of squamous cell carcinoma and 10 cases of normal squamous epithelium of the uterine cervix were selected from the file which were treated during Jan. 89 to 31 Dec. 1992 in Department of Obstetrics and Gynecology, Korea University Hospital. RESULTS: UEA-1 and LTL were negative in normal cervix while positive in 76.5%, 47.1% of squamous cell carcinoma respectively, and useful markers for differential diagnosis between normal and squamous cell carcinoma. SBA and LTL were useful for differential diagnosis of keratinizing and non-keratinizing squamous cell carcinoma. UEA-1 may play an important role in lymphovascular invasion of squamous cell carcinoma of the uterine cervix. CONCLUSIONS: There was no correlation among clinical staging, patient's survival and lectins binding in squamous cell carcinoma.
Carcinoma, Squamous Cell* ; Cervix Uteri* ; Diagnosis, Differential ; Dolichos ; Epithelium ; Female ; Gynecology ; Humans ; Korea ; Lectins* ; Lotus ; Obstetrics ; Paraffin ; Soybeans ; Ulex