• 제목/요약/키워드: Neural Crest

검색결과 65건 처리시간 0.021초

Giant Ganglioneuroma of Thoracic Spine : A Case Report and Review of Literature

  • Huang, Yong;Liu, Lidi;Li, Qiao;Zhang, Shaokun
    • Journal of Korean Neurosurgical Society
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    • 제60권3호
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    • pp.371-374
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    • 2017
  • Ganglioneuroma (GN) is a rare benign tumor of neural crest origin usually found in the abdomen, but may occasionally present at uncommon sites including the cervical, lumbar, or sacral spine. However, GNs of thoracic spine are extremely rare. In this report, we describe a 12-year-old girl with giant GN in the thoracic spine, who underwent successful resection (T1-4 level) of the tumor. Histopathological examination confirmed the diagnosis. GN should be considered in the differential diagnosis of any paraspinal mass. A high index of suspicion and correlation of clinico-radiological findings is necessary in differentiating a large benign tumor from a malignant growth. Complete surgical excision is the treatment of choice; however tumor size and location need to be considered for the surgical approach (one-step or multiple surgeries). Close follow-up after surgery is mandatory.

유아기 흑색 신경외배엽성 종양의 치험례 (MELANOTIC NEUROECTODERMAL TUMOR OF INFANCY ; A CASE REPORT)

  • 김일규;하수용;이성준;주영채
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제13권4호
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    • pp.436-443
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    • 1991
  • 저자등은 인하대학교 부속병원에 내원한 생후 5개월된 여아의 상악 전치부에서 발생한 MNTI 1례를 en-bloc excision으로 치험하고, 면역조직화학을 이용한 염색으로 MNTI가 신경능에서 기원하였음을 확인할 수 있었다.

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Cerebral Aneurysm and Aortic Coarctation in a 46, XY Female. Is it Causal or Coincidental?

  • Ju, Sun-Min;Yi, Hyeong-Joong;Ko, Yong;Kim, Kwang-Myung
    • Journal of Korean Neurosurgical Society
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    • 제37권2호
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    • pp.137-140
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    • 2005
  • Most vascular disorders tend to affect both the brain and heart, and among them, a clinical syndrome constituting cerebral aneurysm and aortic coarctation(AC) has been well recognized. Persistent hypertensive impact to the cerebral vasculature with developmental anomaly of the neural crest, precursor of ectomenchymal, would be closely associated with development of the cerebral aneurysm in AC. Gonadal steroid hormone, a guardian of the cardiovascular system, has been known for its protective effects on the vascular wall. Gonadal steroid hormone (androgen) insensitivity such as 46,XY female syndrome may increase the risk of hypertention and subsequent vascular anomalies. The authors report on a 46-year-old 46,XY female patient with AC who underwent surgical clipping of the ruptured cerebral aneurysm. Clinical implications and proposed pathogenetic mechanisms of aneurysm in this intersex syndrome are presented and discussed.

소아 직장 유암종 1예 (A Case of Rectal Carcinoid Tumor in a Child)

  • 강요한;손현이;김재영
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • 제10권1호
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    • pp.86-90
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    • 2007
  • 저자들은 내원 1년 전부터 간헐적인 복통과 함께 복통 시에 항상 동반되는 소량의 비특이적인 설사가 반복되어 내원한 13세 남아에서 직장 유암종을 진단하고 내시경적 절제술로 치료한 증례를 경험하였기에 문헌고찰과 함께 보고한다.

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Expression of the Novel Basic Helix-Loop-Helix Gene dHAND in Neural Crest Derivatives and Extraembryonic Membranes during Mouse Development

  • S.I Yun;Kim, S.K;Kim, S.K.;K.T Chang;B.H Hyun;D.S Son;Kim, M.K;D.S Suh
    • 한국동물번식학회:학술대회논문집
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    • 한국동물번식학회 2001년도 발생공학 국제심포지움 및 학술대회 발표자료집
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    • pp.53-54
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    • 2001
  • Expression of HAND genes in sympathetic adrenal lineage suggests that HAND genes may regulate Mash-I independent neuronal genes. HAND genes are also expressed in other cell types, e.g. Cardiac cells, trophoblasts, and decidua, suggesting that HAND genes are not cell fate determination factors. It is unclear how HAND genes function specifically in different types of cells. Combinational actions of HANDs with other cell-lineage specific transcription factor may determine each cell fate and differentiation processes. Identifying the transcription target genes of HANDs and Mash-I will be important to elucidate the function of these bHLH factors in SNS factors in SNS development. (omitted)

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신경모세포종 (Neuroblastoma)

  • 강형진;유경하;신희영;안효섭
    • Advances in pediatric surgery
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    • 제14권1호
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    • pp.75-82
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    • 2008
  • Neuroblastoma arises from the primitive neural crest cells, and is a common malignancy in childhood. The clinical features are characterized by biological heterogeneity. Neuronal degeneration and differentiation occur in some patients. However treatment in the high risk group accounting for approximately half, has not been satisfactory despite a multimodal approach. Therefore, effective treatment is determined by the risk group of prognostic factors, such as age at diagnosis, stage of disease, pathological finding and N-myc amplification. Neuroblastoma can be diagnosed prenatally, which suggests its origin during the normal embryogenesis. Recent knowledge of molecular biology, such as Trk genes, and the concept of cancer stem cells have given us some improved understanding on this disease. Currently, targeted therapies based on the molecular biology of neuroblastoma are under investigation and increasing survival rate and decreasing late complications could be appreciated.

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Pancreatic Paraganglioma: a Case Report and Literature Review

  • Park, Joon Suk;Min, Seon Jeong;Min, Soo Kee;Choi, Jung-Ah
    • Investigative Magnetic Resonance Imaging
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    • 제25권1호
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    • pp.47-52
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    • 2021
  • Paraganglioma is a rare tumor of paraganglia, derived from neural crest cells in sympathetic or parasympathetic ganglions. It can be widely distributed from the skull base to the bottom of the pelvis. The pancreas, however, is a rare location of this neoplasm, and only a limited number of cases have been reported in the English literature, especially with gadoxetic-acid-enhanced magnetic resonance imaging (MRI) and diffusion-weighted images (DWI). We herein report a case of pathologically proven paraganglioma in the pancreas head with a literature review on endoscopic ultrasonography (EUS), computed tomography (CT), gadoxetic-acid-enhanced MRI, and DWI sequence.

Erk와 retinoic acid의 제1인구둥 패터닝 조절 (Erk AND RETINOIC ACID SIGNALING PARTICIPATE IN THE SEGREGATION AND PATTERNING OF FIRST ARCH DERIVED MAXILLA AND MANDIBLE)

  • 박은주;탁혜진;박은하;백정미;;이상휘
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제31권2호
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    • pp.103-115
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    • 2009
  • In vertebrates, the face is mainly formed with neural crest derived neural crest cells by the inherent programs and the interactive environmental factors. Extracellular signaling-regulated kinase (Erk) is one of such programs to regulate the various cellular functions. And retinoic acid (RA) also plays an important role as a regulator in differentiation process at various stages of vertebrate embryogenesis. We wanted to know that the segregation as well as the patterning of maxillary and mandibular structure is greatly influenced by the maxillomandibular cleft (MMC) and the failure of this development may result in the maxillomandibular fusion (syngnathia) or other patterning related disorder. It has been well documented that the epithelium at this cleft region has significant expression of Fibroblast growth factor (Fgf) 8, and it is essential for the patterning of the first arch derived structures. By the morphological, skeletal, cell proliferation and apoptotic, and hybridization analysis, we checked the effects of Erk inhibition and/or RA activation onto MMC and could observe that Erk and RA signaling is individually and synergically involved in the facial patterning in terms of FGF signaling pathway via Barx-l. So RA and Erk signaling work together for the MMC patterning and the segregation of maxilla-mandible by controlling the Fgf-related signaling pathways. And the abnormality in MMC brought by aberrant Fgf signaling may result in the disturbances of maxillary-mandibular segregation.

자궁 경부의 선암과 혼합된 신경내분비 소세포 암종 - 1 증례 보고 - (Composite Tumor of Adenocarcinoma and Small Cell Neuroendocrine Carcinoma of the Uterine Cervix -A Case Report-)

  • 박혜림;이용우;박영의
    • 대한세포병리학회지
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    • 제1권1호
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    • pp.111-120
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    • 1990
  • Small cell neuroendocrine carcinoma of the uterine cervix is a distinct subtype of cervical cancer that appears analogous to oat cell carcinoma and carcinoid tumors of the lung. It has been assumed to be derived from the neural crest via argyrophilic cells in the normal endocervix. We have recently encountered a case of small cell neuroendocrine carcinoma of the uterine cervix coexisting with adenocarcinoma which was argyrophil negative. A 66-year-old multiparous woman was admitted because of vaginal bleeding for 2 months. Cervicovaginal smear revealed several scattered clusters and sheets of monotonous small cells with some peripheral palisading in the background of hemorrhage and necrosis. Radical hysterectomy specimen revealed an ulcerofungating tumor on endocervical canal which was composed of two components. Major component of the tumor was made up of monomorphic population of small oval-shaped tumor cells arranged in sheets and partly in acinar structures or trabecular fashion. Other component was adenocarcinoma, endocervical well-differentiated type. Argyrophilia was present on the Grimelius stain and immunohistochemical studies revealed diffuse positivity to neuron-specific enolase and carcinoembryonic antigen. Electron microscopic examination showed clusters of small round to oval cells, which had a few well-formed desmosomes and several membrane-bound, dense-core neurosectetory granules.

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