• Title/Summary/Keyword: 흑색종(黑色腫)

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Malignant melanoma in a grey pony, Korea (회색 조랑말에서 발생한 악성 흑색종 증례)

  • Kim, Ji-Hyeon;Lee, Hyunkyoung;Lee, Kyunghyun;Baek, Kanghyun;Choi, Eunjin;So, ByungJae;Yang, Siyeon
    • Korean Journal of Veterinary Service
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    • v.39 no.3
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    • pp.199-204
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    • 2016
  • A 16 year-old female grey pony was presented to Animal and Plant Quarantine agency for diagnosis in Feb 2, 2015. At necropsy, multiple pigmented masses, likely melanomas, were detected peri-anally and under the tail. Further metastatic spread to the spleen, liver, lung and lymph nodes was also identified. Histopathologically, anaplastic and pleomorphic melanocytes were observed in the mass. By immunohistochemistry, PNL2, S100 and PGP 9.5 protein were detected, but Melan A was not expressed in the neoplastic melanocytes. Based on the pathological and immunohistochemical examination, we diagnosed this case as malignant melanoma in a grey pony. To the authors' knowledge, this is the first report of equine malignant melanoma in republic of Korea.

A Case of Giant Congenital Melanocytic Nevi in a Neonate (신생아에서 발생한 거대 선천성 멜라닌세포 모반 1례)

  • Cho, Seo-Eun;Choi, Lim;Park, Kyu-Hee;Lee, Jang-Hoon;Choi, Byung-Min;Hong, Young-Sook;Yoo, Kee-Hwan;Lee, Joo-Won
    • Neonatal Medicine
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    • v.17 no.1
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    • pp.147-151
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    • 2010
  • Giant congenital melanocytic nevi are very rare, with an estimated incidence of 1 in 20,000 live births. They have a high risk of malignant melanoma transformation and neurological deficits such as neurocutaneous melanocytosis and epilepsy. Early evaluation, surgical intervention and careful long term follow up are recommended to monitor for malignant transformation. We report one case of giant congenital melanocytic nevi diagnosed at birth with the related literatures.

Antitumor Effects of the Hexane Extract of Stachys Sieboldii MIQ (초석잠 추출물의 항암 및 면역 효과)

  • 류병호;박법규;송승구
    • KSBB Journal
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    • v.17 no.6
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    • pp.520-524
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    • 2002
  • The present study was designed to investigate the effects of Stachys Sieboldii MIQ as a new natural antitumor agent or immunomodulator. To obtain the above objectives, Stachys sieboldii MIQ was extracted with ethanol. Stachys sieboldii MIQ accelerated mouse spleen cell growth, but inhibited FM3A/S°-cell growth. However, no significant difference was found for CD4+ / CD8+ cells. The growth rates of CD4+ and CD8+ T cells were accelerated more than those normal mouse group. Stachys sieboldii MIQ fed mice showed a significant enhancement of IL-2 receptor expression, increased numbers of CD4+ T cells, and CD8+ T cells. Stachys sieboldii MIQ also stimulated the production of NO by peritoneal macrophages and the production of NO by and the growth of mouse spleen cells. On the other hand, lung localization of Bl6Fl0 melanoma cells was inhibited by ethanol extract of Stachys sieboldii MIQ. These results show that Stachys sieboldii MIQ is a useful new functional antitumor agent or immunomodulator.

Larval Morphology of Gnathagnus elongatus (Uranoscopidae) (푸렁통구멍 Gnathagnus elongatus 자치어의 형태 발달)

  • Kim, Sung;Yoo, Jae-Myung
    • Korean Journal of Ichthyology
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    • v.12 no.2
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    • pp.124-128
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    • 2000
  • A total of 46 Gnathagnus elongatus larvae, 2.7~8.7 mm BL (Body length), were collected by bongo net and trawl-shaped fish larvae net in the coastal area of Cheju Island during 1997~1999. This species was found in the coastal area of Cheju Island and the Korea Strait. This paper describes morphological features of these specimens throughout their development. 1) The soft ray of fin appeared at about 5 mm BL and attained to a fixed number at about 8.7 mm BL. 2) Pigments pattern changed suddenly about 3 mm BL. 3) A series of pigments in the upper and the lower part of the urostyle were found less than 4.3 mm BL. 4) The pigments of caudal peduncle were found more than 6 mm BL.

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A Case of Primary Tracheal Malignant Melanoma (원발성 기관 악성 흑색종 1예)

  • Kang, Woo-Heon;Ahn, Byung-Hoon;Chung, Man-Pyo;Kim, Ho-Joong;Kwon, O-Jung;Rhee, Chong-H.;Kim, Jhin-Gook;Han, Jung-Ho;Lee, Kyung-Soo
    • Tuberculosis and Respiratory Diseases
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    • v.45 no.1
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    • pp.222-226
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    • 1998
  • We report a rare case of primary tracheal malignent melanoma documented by careful clinical examination. Differentiation between primary and metastatic malignant melanoma is very difficult We conclude that this tracheal tumor is a primary malignant melanoma based on characteristic pathologic features and the exclusion of the possibility of spontaneous regression of the primary site by patient's history and physical examination.

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A CASE REPORT OF MELANOTIC NEUROECTODERMAL TUMOR OF INFANCY (유아에서 발생하는 흑색 신경외배엽성 종양의 치험례)

  • Lee, Sang-Chul;Kim, Yeo-Gab;Ryu, Dong-Mok;Kwak, Yang-Ho;Hwang, Sun-Yong
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.13 no.1
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    • pp.77-81
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    • 1991
  • The melanotic neuroectodermal tumor of infancy(MNTI) is a rare childhood neoplasm with a clinical presentation. Because of its rapid growth pattern and bone resorption, the lesion can be mistaken for a malignant neoplasm. Although an aggressive growth rate and radiographic appearance, the MNTI almost always behaves in a benign fashion and can be treated with total excision. We presented the MNTI occured in the left maxillary alveolar ridge of 5 month old female infant. showing bluish enlargenent of alveolar mucosa with the displacement of central decidious incisor. And after the surgical excision of the mass, there is no recurrent tendency.

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A Case Report on the Patient of Malignant Melanoma at Right Maxilla with the Treatment of Bee Venom Phamacopuncture (봉독약침을 시행한 우측상악동의 악성 흑색종 환자에 대한 증례보고)

  • Bang, Sun-Hwi;Yoo, Hwa-Seung
    • Journal of Pharmacopuncture
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    • v.10 no.2 s.23
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    • pp.99-105
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    • 2007
  • Objectives : It is the aim of this study to derive lurker studies evaluating the effectiveness of bee-venom phamacopuncture on malignant melanoma patients. We present a patient of malignant melanoma at right maxilla who survives over one year with stable disease (SD) by the treatment of Bee Venom Phamacopuncture (BVP). Methods : We followed the treatment and examination. We prescribed to the patient what to be taken 1.5cc BVP once a day. Picture series, Head series were followed-up and Neck computed tomography (CT) and positron emission tomography computed tomography (PET CT) were performed to evaluate the therapeutic efficacy. Results : The patient survives over one year and continued stable disease over 6 months. Picture series, Head series X-ray, neck CT and PET CT were shown no interval change. Conclusion : This case may give us the possibility that BVP offers potential benefits for patients with malignant melanoma.

Metastatic Melanoma Mimicking a Papillary Carcinoma of the Thyroid in Fine Needle Aspiration Cytology -A Case Report- (갑상샘 유두암을 닮은 전이성 흑색종의 세침 흡인 세포 소견 -1예 보고-)

  • Hong, Young-Ok;Suh, Jae-Hee;Cha, Hee-Jeong;Choi, Hye-Jeong;Kim, Young-Min
    • The Korean Journal of Cytopathology
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    • v.18 no.2
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    • pp.161-164
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    • 2007
  • Metastasis to the thyroid gland is very rare in clinical practice. We recently encountered a 65-year-old woman who presented with a large thyroid nodule that mimicked the cytologic features of a papillary thyroid carcinoma on fine needle aspiration biopsy (FNAB). Although initially diagnosed as a papillary thyroid carcinoma, a thorough clinical work-up revealed multiple lesions in the bones, liver, and nasal cavity, which were confirmed as metastases of a malignant melanoma. Despite a thorough physical examination, however, the primary skin lesion could not be identified. Although FNAB shows a high degree of accuracy in diagnosing primary thyroid tumors, it is less accurate in diagnosing metastases to the thyroid gland. A thorough clinical history with appropriate immunohistochemical staining assays is necessary for the accurate diagnosis of metastatic malignant melanoma.

The Effect of Methamphetamine on the Pulmonary Metastasis of B16 Melanoma Cells (Methamphetamine이 B16 악성 흑색종 세포 전이에 미치는 영향)

  • 신전수;박현애;정승태;김필선;손경희;선우연;한형미
    • Biomolecules & Therapeutics
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    • v.3 no.4
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    • pp.273-278
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    • 1995
  • The effect of methamphetamine on the pulmonary metastasis was investigated in C57BL/6 mice injected with Bl6 melanoma cells. Bl6 melanoma cells (2$\times$10$^{5}$ cells) were injected intravenously into 5~7 weeks old C57BL/6 mice. Mice were then treated intraperitoneally with methamphetamine either acutely (two times with one week interval) or subchronically (daily for 14 days). Degree of pulmonary metastasis was investigated and specific immunologic parameters such as natural killer cell cytotoxicity(NKCC), antibody-dependent cellular cytotoxicity(ADCC) and blastogenic responses of splenocytes were examined. Mice which had been subchronically treated with methamphetamine showed significant decreases in the number of pulmonary metastasis of Bl6 melanoma cells, NKCC and ADCC without a significant change in blastogenic responses. In the acutely-treated group, slight trends of decrease in the numbers of pulmonary metastasis, NKCC and ADCC were observed without statistical significances whereas there was a significant increase in blastogenic responses. The mechanism underlying the decrease in the degree of metastasis despite diminished NKCC and ADCC after methamphetamine treatment and the relationship between the degree of pulmonary metastasis and duration of methamphetamine treatment remain to be investigated.

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Anticancer and Signaling Mechanisms of Biologically Active Substances from Orostachys japonicus through Arrest of Cell cycle in Human Melanoma Cells (인체 흑색종 세포에 대한 와송 추출물의 세포주기 억제를 통한 항암효과와 기전 연구)

  • Ryu, Deok-Hyun;Ryu, Deok-Seon
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.32 no.4
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    • pp.1-12
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    • 2019
  • Objectives : The purpose of this study was to identify the anticancer effect of biological substances of ethylacetate(EtOAc) fraction from Orostachys japonicus(OJEF), their effect on human melanoma A375 cells and the related molecular mechanisms. Methods : The MTS assay was used to confirm the inhibition of cancer cell proliferation in A375 cells. And the $MUSE^{TM}$ analyzer was used to determine the ability of OJEF to induce cell cycle arrest. Western blotting was used to determine the changes in protein expression in A375 cells after treatment with OJEF. Results : OJEF showed cytotoxicity to A375 cells. And cell cycle arrest occurred in G1 phase and G2/M phase owing to inhibition of CDK1, cyclin B1, CDK4, and cyclin D, which are related to cell cycle regulation and cell division control. Conclusion : OJEF is effective in regulating cell cycle of human melanoma cells and thus can be a good theraputic agent to treat patients with melanoma.