• Title/Summary/Keyword: Histopathological type

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Epithelioid Hemangioendothelioma Arising from Interanl Jugular Vein Mimicking Cervical Metastatic Lymphadenopathy

  • Yun, Ju Sik;Kang, Seung Ku;Kim, Sang Hyung;Na, Kook Joo;Song, Sang Yun
    • Journal of Chest Surgery
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    • v.48 no.4
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    • pp.294-297
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    • 2015
  • Epithelioid hemangioendothelioma (EHE) is a relatively rare and moderately aggressive type of vascular tumor. We describe a case of EHE that presented in a 24-year-old woman as a palpable nodule in the left cervical area. Radiological examinations and fine-needle aspiration cytology led to a preliminary diagnosis of metastatic lymphadenopathy with an unknown primary site. However, during surgery, we determined that the nodule was an intra-vascular tumor arising from the left internal jugular vein. The histopathological examination revealed cords of epithelioid endothelial cells distributed in a hyaline stroma, compatible with a diagnosis of EHE.

Down-Regulation of CYP1A1 Expression in Breast Cancer

  • Hafeez, S.;Ahmed, A.;Rashid, Asif Z.;Kayani, Mahmood Akhtar
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.5
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    • pp.1757-1760
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    • 2012
  • Breast cancer is a major cause of death in women worldwide. Mammary tissue expressing xenobiotic metabolizing enzymes metabolically activate or detoxify potential genotoxic breast carcinogens. Deregulation of these xenobiotic metabolizing enzymes is considered to be a major contributory factor to breast cancer. The present study is focused on the expression of the xenobiotic metabolizing gene, CYP1A1, in breast cancer and its possible relationships with different risk factors. Twenty five tumors and twenty five control breast tissue samples were collected from patients undergoing planned surgery or biopsy from different hospitals. Semi-quantitative reverse transcriptase polymerase chain reaction (RT-PCR) and western-blotting were used to investigate the expression of CYP1A1 in breast cancer control and disease samples. mRNA expression of CYP1A1 was down-regulated in 40% of breast tumor samples. Down-regulation was also observed at the protein level. Significnat relations were noted with marital status and tumour grade but not histopathological type. In conclusion, CYP1A1 protein expression was markedly reduced in tumor breast tissues samples as compared to paired control tissue samples.

Non-Dural-Based Spinal Meningioma : The First Case Report of a Fibrous Subtype and a Review of the Literature

  • Lee, Ji Hye;Moon, Hong Joo;Kim, Joo Han;Park, Youn-Kwan
    • Journal of Korean Neurosurgical Society
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    • v.56 no.1
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    • pp.58-60
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    • 2014
  • Spinal meningiomas typically adhere to the dura matter. Non-dural based spinal meningiomas are rare and most are clear cell meningiomas. We report here the first case of a fibrous meningioma with non-dural attachment. The patient was a 49-year-old female, who complained of numbness in the legs and a gait disturbance. Magnetic resonance imaging revealed a $1.7{\times}1.4-cm$ mass in the C7-T1 intra-dural extramedullary space, showing peripheral gadolinium enhancement without a "dural tail sign". A complete microsurgical resection was performed. The mass was covered with a white membrane but was not adhered to the dura, and its appearance was consistent with a neurilemmoma. The histopathological diagnosis was fibrous-type meningioma. The recovery of the patient was uneventful. No surgical complications and no recurrence of the tumor had occurred at the 6-month follow-up.

A Case of B Cell Lymphoma Presenting with Multiple Osteolysis in a Juvenile Golden Retriever (다발성 골 융해를 동반한 림프종 증례)

  • Choi, Ji-Hye;Lee, Jin-Soo;Kim, Hyun-Wook;Choi, Ul-Soo
    • Journal of Veterinary Clinics
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    • v.29 no.1
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    • pp.98-102
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    • 2012
  • A 1.5-year-old male Golden Retriever was presented with worsening lameness of two month duration. Abnomral findings of blood works and serum chemistry included anemia, thrombocytopenia, hypercalcemia and hyperglobulinemia. Radiography revealed osteolysis of polyostotic regions including right femur and tibia, bilateral ilium, and spinous processes from the 13th thoracic vertebra to 5th lumbar vertebra. Enlarged multiple lymph nodes and mixed echo pattern of muscular region ventral to vertebra were observed with ultrasonography. Because concentrations of both parathyroid hormone and parathyroid hormone related peptide were all within reference ranges, humoral hypercalcemia by tumor was ruled out and extensive osteolysis was considered as the cause of hypercalcemia. Based on radiographic and ultrasonographic study, lymphoma, multiple myeloma and osteomyelitis were included in differential diagnosis. Fungal serologic test was negative. Monoclonal gammopathy was not found on serum protein electrophoresis. Cytological and histopathological examinations of the lytic lesions revealed neoplastic lymphoid proliferation, and B cell type clonal expansion was detected by polymerase chain reaction for the antigen receptor gene rearrangement. The case was diagnosed as B cell lymphoma involving polyostotic regions.

Observations of pneumonia in slaughtered pigs according to season (계절에 따른 출하돈에서의 폐렴관찰)

  • Lee, Seok-kyu;Han, Jeong-hee;Jeong, Hyun-kyu
    • Korean Journal of Veterinary Research
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    • v.39 no.1
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    • pp.85-89
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    • 1999
  • From 2,373 slaughtered pigs examined, 1,899 of them had visible evidence of pulmonary lesion. The lungs with pulmonary lesion were examined by grossly, histopathological technique to investigate the prevalence according to season, severity of pulmonary lesion, types of the pneumonia and relationship between rearing management and prevalence of pulmonary lesion. The results were as follows : 1. Prevalence of pneumonia according to season was 72.3% to 85.9% and the highest prevalence was in winter. 2. In the severity of pulmonary lesion, rates mild, moderate and severe lesions were 38.3%, 47.0% and 14.7%, respectively. Prevalence of mild lesion was the highest in autumn. Prevalence of moderate and severe lesions was the highest in winter. 3. In the type of pneumonia, rates of interstitial pneumonia and bronchopneumonia fibrinous pneumonia were 23.6%, 13.0%, and 3.4%, respectively. Prevalence of interstitial pneumonia was high in spring and autumn while that of broncho-pneumonia and fibrinous pneumonia was high in winter and summer, respectively. 4. In relationship of pulmonary lesions according to severity of pulmonary lesion and types of pneumonia, similarity was observed in prevalence of mild lesion and bronchopneumonia.

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Immunomodulatory effects of silymarin after subacute exposure to mice: A tiered approach immunotoxicity screening

  • Karimi, Gholamreza;Hassanzadeh-Josan, Samed;Memar, Bahram;Esmaeili, Seyed-Alireza;Riahi-Zanjani, Bamdad
    • Journal of Pharmacopuncture
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    • v.21 no.2
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    • pp.90-97
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    • 2018
  • Silymarin is a flavonoid complex extracted from the Silybum marianum plant with a wide range of pharmacological and biochemical effects. In the present study, the immunomodulatory effects of silymarin were investigated in BALB/c mice. Silymarin was administered daily by intraperitoneal injection at doses of 50, 100 and 150 mg/kg for 14 consecutive days. Following the exposure, host hematological parameters, spleen cellularity and histopathological examination, as well as delayed-type hypersensitivity (DTH) responses, hemagglutination titers (HA), splenocyte cytokine production and lymphocyte proliferation assay were studied in all of the test groups of animals. The results showed that the low dose of silymarin (50 mg/kg) could stimulate both cellular and humoral immune functions in the treated hosts. In addition, silymarin at 100 mg/kg appeared to impact on DTH responses and lymphoproliferation. Based on the finding here, it would seem that silymarin has efficient immunostimulant properties. As a recommendation, the application of silymarin along with acupuncture technique (herbal acupuncture) can be thought as a good plan to modulate and enhance the immune system for the management of several immunodeficiency disorders. However, further studies are required to demonstrate this hypothesis.

Bovine tuberculosis found at slaughtered Korean indigenous cattles (도축 한우에서 발견된 결핵병)

  • Byun, Hyeon-Seop;Lee, Hyun-Ju;Lee, Sang-Myung;Han, Seong-Tae;Quak, Hak-Ku;Choi, Hae-Yeon;Cho, Yun-Sang;Ahn, Byeong-Woo
    • Korean Journal of Veterinary Service
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    • v.30 no.3
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    • pp.407-414
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    • 2007
  • There were eight Korean indigenous cattles affected with bovine tuberculosis (BTB) detected by inspectors at slaughterhouses located in Chungbuk province from May 2006 through July 2007. Postmortem finding of BTB cases was characterized by the presence of several caseous or calcified nodules encapsulated by connective tissue from the pleural/peritoneal surface, livers, lungs and regional lymph nodes On micro-scopic examinations, the characteristic lesion of BTB was the formation granulomatous nodules, which contains central calcified necrotic zone surrounded by epithelioid cells, macrophages and a few Langhans' type giant cells. In addition, mononuclear cells and fibroblasts were also infiltrated. At the periphery, encapsulation was formed that protect the neighboring healthy tissues.

Prevalence of bacterial respiratory diseases in cattle (소 세균성 호흡기 질병 분포도 조사)

  • Jeong, Byeong-yeal;Jeon, Yong-soo
    • Korean Journal of Veterinary Research
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    • v.44 no.3
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    • pp.427-432
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    • 2004
  • The objective of this study was to determine the prevalence of pneumonic bacteria in lungs and nasal swabs of cattle with respiratory diseases. From 95 pneumonic lungs of slaughtered cattle, 41 (43.2%) positive lungs were yielded with 54 pneumonic bacteria, which corresponded to P. multocida (n = 34), A. pyogenes (n = 14) and P. haemolytica (n = 6). One-hundred sixty seven pneumonic bacteria were isolated from 195 nasal swabs in calves, 64.7% (108 isolates) belonged to P. multocida, 16.2% to A. pyogenes, 13.8% to P. haemolytica and 5.4% to H. somnus. Fifty percents (n = 6) of isolates from pneumonic lungs of calves were identified as P. multocida. All isolates of P. multocida belonged to type A according to hyaluronidase test. Antimicrobial susceptibility tests showed that most isolates of P. multocida and P. haemolytica were sensitive to amoxicillin/clavulanic acid, cephalothin, ciprofloxacin, enrofloxacin, fluorophenicol and norfloxacin. The emergence of antimicrobial resistant Pasteurella spp. observed in this study, however, might limit such application. According to histopathological examination, pneumonia by mycoplasma or/and bacteria accounted for 92.8% among 69 pneumonic lungs of slaughtered cattle.

Inhibitory Effects of Soyeum Pharmacopuncture (SPP) on Rheumatoid Arthritis in Collagen II-induced Arthritis (CIA) Mice (소염약침액이 Collagen II 유발 관절염 mouse의 TNF-α, IFN-γ 생성 및 비장세포 증식에 미치는 영향)

  • Yoo, Hwa-Seung;Youn, Dae-Hwan;Kim, Seung-Hyung;Lim, Jong-Soon
    • Journal of Pharmacopuncture
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    • v.10 no.2 s.23
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    • pp.31-40
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    • 2007
  • Objective : The aim is to examine the effect of Soyeum Pharmacopuncture (SPP) on collagen-induced arthritis (CIA) in DBA/1OlaHsd mice. Methods : To determine the effect of SPP on chronic IFNlammatory joint disease, we induced CIA in DBA/1OlaHsd mice by immunization with bovine type II collagen. Animals were treated with intraperitoneal injection doses of 2 mg/kg of SPP, beginning 3 days before the expected onset of disease symptoms. Inhibitory Effects of SPP were observed by serum levels of TNF-${\alpha}$, and IFN-${\gamma}$,,, or cell proliferation in the spleen cell culture and histological examination of knee joint. Results : In the CIA Mice, serum levels of TNF-${\alpha}$, and IFN-${\gamma}$,, production in the spleen cell culture were reduced. At the histopathological examination of knee joint, chondropathy of cartilage in the synovial joint in the SP group was repaired while compared with control group. Conclusion : These results suggest that the SPP may be effective for the prevention and treatment of rheumatoid arthritis disease.

Myoepithelioma of the Parotid Gland: A Case Report (이하선에서 발생한 근상피종 치험례)

  • Chang, Cheol Ho;Lim, So Young;Hyon, Won Sok;Bang, Sa Ik;Oh, Kap Sung;Mun, Goo Hyun
    • Archives of Plastic Surgery
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    • v.34 no.2
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    • pp.258-260
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    • 2007
  • Purpose: Myoepithelioma is a rare tumor that originates exclusively from myoepithelial cells of the salivary glands, breast and the prostate. Myoepithelioma accounts for less than 1% of all salivary gland tumors. The objective of our study is to present our experience of the infra-auricular mass which was finally diagnosed as a myoepithelioma. Methods: A 54-year-old woman was presented with a firm, movable, slow-growing infra-auricular mass with 3 cm in diameter. MRI scans and fine needle biopsy was performed for preoperative diagnostic study. A superficial parotidectomy was preceded and removed tumor successfully. Results: Histopathological study revealed a myoepithelioma of plasmacytoid type. Patient's postoperative course was uneventful without any complication and had no evidence of recurrence of tumor for 9 months follow-up period. Conclusion: Myoepithelioma in the parotid gland shows similar clinical courses and intraoperative finding to the pleomorphic adenoma and superficial parotidectomy was selective choice for treatment.