The fashion of vascular anastomosis, end-to-end or end-to-side (E-to-S), are depended upon surgeon's preference or surgical situations. In E-to-S anastomosis two different methods of arteriotomy are applicable but it has been suggested the type, either elliptical or slit arteriotomy, play a different role in the flow hemodynamics. We thought that the difference is more considerable in microvascular surgery. This study examines the effects of elliptical versus slit arteriotomy on morphologic vessel patency. Twenty male Sprague-Dawley rats were divided into two groups of ten rats each. Both carotid arteries were selected as a experimental model. During the procedures the rat brain was tolerable to ischemia and all animals were survived after operations. The morphologic analysis of anastomosis site was through resin-casting method with scanning electromicroscopic examination. The results showed notable difference between two groups in three-dimensional morphology at two-month of operation. This difference may affect the flow hemodynamics and long-term vessel patency. In microvascular anastomosis, the mortpologic difference of the elliptical arteriotomy is worse than slit arteriotomy which compromises the vessel circumference.
Animals ; Brain ; Carotid Arteries ; Hemodynamics ; Humans ; Ischemia ; Male ; Models, Theoretical ; Rats ; Rats, Sprague-Dawley

The complement system is known to be involved in the pathogenesis of the skin lesions in pernphigus vulgaris, bullous pemphigoid, dermatitis herpetiformis, epidermolysis bullosa acquisita, and systemic lupus erythematosus. Authors examined the skin specimens of each disease cases, who did not show any evidence of complement deficiency, to determine the deposition of complement components(C4, C3, Chb-9) and their inhibitors(C4bp, Factor H, S-protein) by modified direct immunofluorescence. We also looked at the staining pattern and localization, for further insights of their pathobiologic contributions in each disease. The findings of deposits of complement components up to C9, as well as inhibitor proteins at the primary histopathologic sites, in the majority of those cases, may indicate that the complement system, to certain extent, involves the inflamrnatory reactions in these diseases. The co-localization of C5b-9 and S-protein could be regarded as the consequence of in situ formation of SC5b-9 complexs or as the result of non-lytic adsorbed complexes of fluid phase SC5b-9. The pathologic role of the complement seems to depend mostly on the complement-fixing biologic property and the amount of the tissue bound immune complexes, which are often heterogeneous to different diseases and among different patients.
Antigen-Antibody Complex ; Complement Factor H ; Complement Membrane Attack Complex ; Complement System Proteins* ; Dermatitis Herpetiformis ; Epidermolysis Bullosa Acquisita ; Fluorescent Antibody Technique, Direct ; Humans ; Lupus Erythematosus, Systemic ; Pemphigoid, Bullous ; Skin ; Skin Diseases*

Eighty cases of malignant effusion were cytologically studied to elucidate the incidence of primary tumor site and cytologic characteristics of each tumor types. Eighty fluid specimens were composed of 43 ascitic, 35 pleural, and 2 pericardial effusion and primary tumor site had been confirmed by histology. The frequent primary sites were stomach (22 cases, 28%), lung (21 cases, 26%), ovary (11 cases, 14%), liver (7 cases, 9%), and breast (4 cases, 5%). The principal malignant tumors were adenocarcinoma (56 cases, 70%), squamous cell carcinoma (7 cases, 9%), liver cell carcinoma (7 cases, 9%), small cell carcinoma (4 cases, 5%), and non-Hodgkin's lymphoma (4 cases, 5%). The distinctive cytologic findings according to primary tumor types were as follows; the gastric adenocarcinomas were mainly characterized by isolated cells and irregular clusters sometimes with signet ring cells. Papillary serous cystadenocarcinoma of ovary showed frequently papillary clusters and occasional psammoma bodies. Breast carcinoma of ductal type showed cell balls with smooth margins. Colonic adenocarcinoma showed rather irregular clusters o palisading pattern of cylindrical cells. Metastatic squamous cell carcinoma, liver cell carcinoma, small cell carcinoma, and non-Hodgkin's lymphoma showed also characteristic features. These findings indicate that the cytological features observed in the great majority of malignant effusion are similar to those of primary tumor types, which are very helpful to indentify the primary tumor site.
Adenocarcinoma ; Breast ; Breast Neoplasms ; Carcinoma, Hepatocellular ; Carcinoma, Small Cell ; Carcinoma, Squamous Cell ; Child* ; Colon ; Cystadenocarcinoma, Serous ; Diagnostic Errors ; Female ; Granuloma, Plasma Cell ; Humans ; Iliac Artery* ; Incidence ; Liver ; Lung ; Lymphoma, Non-Hodgkin ; Nephrosis, Lipoid* ; Ovary ; Pericardial Effusion ; Stomach

No abstract available.

BACKGROUND: Minichromosome maintenance protein 7 (MCM 7) performs a direct role in the initiation of DNA replication, which suggests that it may prove useful as a marker of cell proliferation. Smad 4 is a tumor suppressor gene that mediates the transforming growth factor beta pathway. The principal objective of this study was to characterize the expression of MCM 7 and Smad 4 and to analyze their relationship to clinicopathological parameters in patients with esophageal squamous cell carcinoma. METHODS: Expression levels of MCM 7 and Smad 4 were evaluated via immunohistochemistry on formalin-fixed and paraffin-embedded tissues from 67 cases of esophageal squamous cell carcinoma. RESULTS: High levels of MCM 7 expression were detected in 53 cases (74.6%), and were associated with higher T stages (p = 0.030). Kaplan-Meier survival curves demonstrated that patients with higher levels of MCM 7 expression had poorer prognoses, although this association was not significant (p = 0.086). Loss of Smad 4 expression was noted in 18 cases (23.4%), and was not associated with clinicopathological characteristics, including MCM 7 expression, or prognosis. CONCLUSIONS: MCM 7 expression is associated with the invasiveness of esophageal squamous cell carcinoma. Altered expression of Smad 4 does not appear to have pathobiological significance in esophageal carcinoma.
Carcinoma, Squamous Cell ; Cell Proliferation ; DNA Replication ; Esophageal Neoplasms ; Esophagus ; Genes, Tumor Suppressor ; Humans ; Immunohistochemistry ; Kaplan-Meier Estimate ; Prognosis ; Transforming Growth Factor beta

PURPOSE: To report clinical features and optical coherence tomographic findings of presumed atypical ocular tuberculosis associated with tuberculosis lymphadenitis and encephalomeningitis. CASE SUMMARY: A 28-year-old female with lymphadenitis in the axillary area presented with a fever and headache of a one week duration. CSF study and MRI findings implied tuberculosis encephalomeningitis, and presumed tuberculosis uveitis manifested with visual disturbance after five days. Ocular symptoms were aggravated and showed anterior iridocyclitis, vitritis, macular edema, and multifocal retinitis with miliary granuloma that was distinct from choroiditis or typical tuberculosis granuloma. After the patient received anti-tuberculosis medication and systemic corticosteroids, significant improvements in visual acuity, ocular findings and OCT results were observed. CONCLUSIONS: Ocular tuberculosis can present with various clinical findings, and caution should be taken so as not to misdiagnose based on these characteristics. In the present case, anti-tuberculosis medication and systemic steroids resulted in the resolution of inflammation. In such cases, monitoring the posterior pole lesion via OCT may be helpful in determining improvement.
Adrenal Cortex Hormones ; Adult ; Choroid ; Choroiditis ; Female ; Fever ; Granuloma ; Headache ; Humans ; Inflammation ; Iridocyclitis ; Lymphadenitis ; Macular Edema ; Meningitis ; Meningoencephalitis ; Retinitis ; Steroids ; Tuberculosis ; Tuberculosis, Miliary ; Tuberculosis, Ocular ; Uveitis ; Visual Acuity

PURPOSE: This study is to conduct a comparative analysis of influencing factors on the experience of mammography targeting ordinary women and outpatients. METHODS: The target subjects were 116 ordinary women and 105 outpatients, and the study period was around 8 months from May to December. RESULTS: When mammography experience was examined, it was found that mammography experience was conducted in 44.8% of ordinary women and 59.0% of outpatients, but this study showed that there was a statistically significant difference. When the relation between the characteristics of the targeted objects and the experience of mammography was examined, it was found that ordinary women have a lot of experience when they have regular exercises and a high health belief. On the other hand, in case of outpatients. mammography experience was more frequent in the older group. In addition, outpatients had experiences in breast-related diseases or high self-efficacy. It was also found that the influencing factors on the experience of mammography were a high health belief in case of ordinary women, and old ages and high self-efficacy in case of outpatients. CONCLUSIONS: In order to increase the rate of conducting early detection behavior for mammography, it is needed to conduct an intervention that increases health belief for ordinary women, while it is effective to conduct an intervention that increases self-efficacy for outpatients.
Breast Neoplasms ; Exercise ; Female ; Hand ; Humans ; Mammography* ; Outpatients*

Annular atrophic lichen planus(AALP) is the most unusual variant of lichen planus that results from elastolytic activity of inflammatory cells. We report a case of AALP in 22-year-old man who had two annular pruritic plaques on the axilla. He had a two year history of skin lesions. Each lesion had elevated erythematous annular border with hyperpigmented atrophic macular center. Histopathologically, it showed typical features of lichen planus in the border of the lesion while a pattern of resolved lichen planus in its center. Elastic fibers was not found in the papillary dermis either at the border or at the center of the lesion.
Axilla ; Dermis ; Elastic Tissue ; Humans ; Lichen Planus* ; Lichens* ; Skin ; Young Adult

Background: Lymph node metastasis (LNM) is commonly observed in papillary thyroid carcinoma. This study aimed to investigate the risk factors for LNM in patients with papillary thyroid carcinoma. Methods: The clinicopathological factors of 417 patients were investigated, and differences according to the presence or absence of LNM were evaluated. Results: LNM was associated with age <55 years, male sex, tumor size >10 mm, multiple and bilateral tumors, tumor involving the lower pole or entire lobe, lymphovascular invasion (LVI), perineural invasion (PNI), and extrathyroidal extension (ETE). Univariable and multivariable analyses showed that age <55 years, male sex, tumor size >10 mm, LVI, and ETE were related to central LNM. Male sex, tumor size >10 mm, and LVI were correlated with lateral LNM (p<0.05). Compared to central LNM, more lymph nodes were involved in metastases and the metastatic tumors were larger in lateral LNM. Extranodal extension (ENE) was more commonly observed in lateral LNM (p<0.001) and was associated with tumor size >10 mm, multifocality, PNI, ETE, and the absence of lymphocytic thyroiditis (p<0.05). Conclusions Younger age, male sex, tumor size >10 mm, LVI, and ETE were risk factors for central LNM, while male sex, tumor size >10 mm, and LVI were risk factors for lateral LNM. ENE was more commonly observed in lateral LNM, and tumor size >10 mm, multifocal tumors, PNI, ETE, and tumors unrelated to lymphocytic thyroiditis were risk factors for ENE.

In this study the effect of insulin and aminoguanidine on the expression of iNOS and the development of insulitis in the multiple low dose streptozotocin (SZ) induced diabetic (LDSD) mice was evaluated. Eighty mice (Charles-River CD-1 mice) were divided into four groups. Group I received SZ for five days. Group II received SZ for five days and was followed by insulin treatment. Group III received SZ for five days and was followed by aminoguanidine treatment. Group IV was normal control group. The blood glucose level and body weight were measured weekly. On the 35th day, pancreat ic sections were observed to evaluate the frequency and the severity of insulitis in addition to the immunohistochemical expression of iNOS in the pancreatic islets. Blood glucose levels of group IV were significantly lower than other experimental groups on the 21st, 28th, and 35th day. The difference in blood glucose levels was not statistically significant. Incidence of the insulitis was lower in group II than in groups I and III. The severity of insulitis correlated with the increase in blood glucose level only in group II. The expression of iNOS was more pronounced in group I than in groups II and III. Aminoguanidine did not inhibit development of the insulitis but decreased expression of iNOS in the pancreatic islets. Therefore it is speculated that iNOS production is one of the factors and other pathogenetic mechanisms might be involved in the development of insulitis.
Animals ; Blood Glucose ; Body Weight ; Incidence ; Insulin* ; Islets of Langerhans ; Mice* ; Nitric Oxide Synthase Type II* ; Streptozocin