• 제목/요약/키워드: embryonal

검색결과 88건 처리시간 0.026초

8개월 영아의 좌측 이하선 부위에서 발생한 배아형 횡문근육종 1예 (A Case of Embryonal Rhabdomyosarcoma at Left Parotid Gland in 8-Month-Old Infant)

  • 조민혁;김연수;신유섭;김철호
    • 대한두경부종양학회지
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    • 제30권2호
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    • pp.119-122
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    • 2014
  • Rhabdomyosarcoma is the most common sarcoma in children less than 15 years of age. Two major histological subtypes are embryonal and alveolar. Embryonal rhabdomyosarcoma is diagnosed by immunopathology and treatments require coordinated management plans that include surgery, chemotherapy, and usually radiotherapy. 8-month-old male infant visited with swelling in left parotid area. Computed tomography scan showed a heterogeneous mass in the left parotid area and the result of fine-needle aspiration cytology was suspicious malignancy. Left total parotidectomy was performed and CSF leakage was noted and repaired. Confirmed by positive reactions to desmin and myogenin, the diagnosis was embryonal rhabdomyosarcoma. On postoperative brain MRI, extension along the meninges was noted and for treatment, chemotherapy and gamma knife radiosurgery were done. Five years after initial surgical resection(3 years and 10 months after completion of chemotherapy and gamma knife radiosurgery), the child did not show any evidence of local recurrence or distant metastasis.

종격동에 발생한 태생암 1례 (Embryonal Carcinoma of the Mediastinum)

  • 곽상룡;홍기우;김주현
    • Journal of Chest Surgery
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    • 제11권3호
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    • pp.364-367
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    • 1978
  • Embryonal carcinoma of the mediastinum is a very uncommon disease. This is a report of an embryonal carcinoma in the mediastinum found in a 25 years old Korean male patient who had been suffering from chest pain and intractable coughing for 6 months. 5 weeks prior to this admission hemoptysis and high fever were followed. Right exploratory thoracotomy was performed under the impression of a mediastinal tumor, but found to be unresectable. Irradiation therapy was tried, but no response was observed. Patient expired on 78th day postoperatively.

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흉벽에 발생한 배아성 횡문근육종 2례 보고 (Two Cases of Embryonal Rhabdomyosarcoma Originating from Chest Wall)

  • 장병철
    • Journal of Chest Surgery
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    • 제11권4호
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    • pp.451-455
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    • 1978
  • Rhabdomyosarcoma is relatively rare in general pediatric population. Furthermore, the primary site in the thorax is one of the least sites. Because most patient, when first seen, are extensively advanced and bad in prognosis, an adequate work-up prior to any definitive therapy must be undertaken. Author experienced 2 cases of embryonal rhabdomyosarcoma originating from chest wall. Both 2 cases are included in Group III [Rhabdomyosarcoma-Intergroup Protocol Grouping], one case is treated with radical surgery and radiation therapy, and the other case is treated with radiation therapy and chemotherapy. So author present 2 cases of embryonal rhabdomyosarcoma with reference.

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Radiation Therapy against Pediatric Malignant Central Nervous System Tumors : Embryonal Tumors and Proton Beam Therapy

  • Lim, Do Hoon
    • Journal of Korean Neurosurgical Society
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    • 제61권3호
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    • pp.386-392
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    • 2018
  • Radiation therapy is highly effective for the management of pediatric malignant central nervous system (CNS) tumors including embryonal tumors. With the increment of long-term survivors from malignant CNS tumors, the radiation-related toxicities have become a major concern and we need to improve the treatment strategies to reduce the late complications without compromising the treatment outcomes. One of such strategies is to reduce the radiation dose to craniospinal axis or radiation volume and to avoid or defer radiation therapy until after the age of three. Another strategy is using particle beam therapy such as proton beams instead of photon beams. Proton beams have distinct physiologic advantages over photon beams and greater precision in radiation delivery to the tumor while preserving the surrounding healthy tissues. In this review, I provide the treatment principles of pediatric CNS embryonal tumors and the strategic improvements of radiation therapy to reduce treatment-related late toxicities, and finally introduce the increasing availability of proton beam therapy for pediatric CNS embryonal tumors compared with photon beam therapy.

성인의 비강에서 발생한 배아횡문근육종: 증례 보고 (Embryonal Rhabdomyosarcoma of the Nasal Cavity in an Adult : A Case Report)

  • 강민석;김학진
    • Investigative Magnetic Resonance Imaging
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    • 제13권1호
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    • pp.97-100
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    • 2009
  • 성인에서 두경부에 발생하는 배아횡문근육종은 매우 드물다. 저자들은 좌측 비폐색, 동측 안구 및 협부통증과 다발성 경부결절을 주소로 내원한 24세 남자환자에서 발견된 비강내의 배아횡문근육종 1예를 경험하였기에 문헌고찰과 함께 보고한다. 횡문근육종은 소아에서뿐 만 아니라 성인에서도 비강 내 종양의 감별진단에 포함되어야 한다.

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NO(Nitric Oxide)가 생쥐의 배 발달에 미치는 영향 (The Effect of Nitric Oxide on the Embryonal Development in Mouse)

  • 민부기;김기석;이희섭;홍기연;신형도;성연경;김형민
    • Clinical and Experimental Reproductive Medicine
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    • 제25권2호
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    • pp.109-113
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    • 1998
  • Objective: To ananlyze the direct effect of nitric oxide (NO), generated from sodium prusside (SNP) on the embryo developments in reproductive process. Design: Ova from mouse were treated to allow fertilization in in vitro culture. And the samples of fertilized ova were alloted into five alliqutos. Each alliquot was cultured in media treated with either concentration at 0 (n=92), $25{\mu}M$ (n=84), $50{\mu}M$ (n=80), $100{\mu}M$ (n=77), $500{\mu}M$ (n=54) of SNP. Main Outcome Measure: Rates of embryonal cell cleavages, viability and cell morphology were assessed during in vitro fertilization and culture. Results: As analyse the cell cleavage at 24 hours after in vitro culture of fertilised egg in variuos NO concentration, all of egg cells of each alliquot were developed to $2\sim4$ cell stage. But the alliquot of egg cells treated with $50{\mu}M$, which were totally degenerated. And also all embryonal cells of each alliquot were developed to 8 cell stage and morula stage on culture continuosly. And the embryonal cells of each alliquot were analysed at 24 and 48 hours following the in vitro culture. The rates of cell fragmentation and fusion were $4.2{\pm}3.4%$ in control group which is not treated with NO, while experimental groups was high, as rated $23.4{\pm}6.2%$ in $25{\mu}M$, $28.2{\pm}5.7%$ in $50{\mu}M$ and $32.1{\pm}6.4%$ in $100{\mu}M$ concentration of NO. Accordingly the rate of abnormal morphology of embryonal cell in control was lower significantly than that in each alliquot of experimental groups (p<0.05). And the degenerated rates of embryonal cells were 0% in control, $17.8{\pm}6.7%$ in $25{\mu}M$, $23.6{\pm}4.7%$ in $50{\mu}M$ and $26.8{\pm}11.2%$ in $100{\mu}M$ at 8 cells and morula on culture of 48 and 72 hours. On the examination of embryonal cells developed to blastocyst through in vitro culture, the rates of degenerated cells were $16.8{\pm}7.2%$ in control, $37.5{\pm}6.2%$ in $25{\mu}M$, $73.4{\pm}4.6%$ in $50{\mu}M$, 100% in $100{\mu}M$. Conclusion: This results suggeted that the NO in any concentrations is harmful on embryos in view of morphology as well as viability of cell, and the toxicity of NO on embryo is stronger at condition in higher concentration of NO.

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체외배양에서 인간 난포액이 생쥐의 배 발달에 미치는 영향 (The Effects of Human Follicular Fluid on Embryonal Development of Mouse in In Vitro Culture)

  • 민부기;최기욱;김기석;이희섭;홍기연;이봉주;이선영;박승택
    • Clinical and Experimental Reproductive Medicine
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    • 제26권2호
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    • pp.171-178
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    • 1999
  • The follicular fluid (FF) of ovary contains various biological active products which affected on the growth of follicles and the fertilization of oocyte in physiological reproductive process of mammals. This study was designed to determine the effects of human FF on fertilization of oocyte and embryonal development in vitro culture. The FF was prepared as clear without blood contamination by needle aspiration from mature follicles of human at the time of oocytes retrieval for in vitro fertilization (IVF). As the medium for culture in vitro of embryonal cells, human tubal fluid (HTF) supplemented with follicular fluids at concentrations of 10%, 40% and pure FF were used. These effects were compared to control group of cultured embryos in HTF supplemented with 0.4% BSA (bovine serum albumin). For IVF, 64 eggs in control group, 67 eggs in 10% FF, 57 eggs in 40% FF and 64 eggs in pure FF were respectively allocated. And the rates of fertilization were almost similar in all groups as resulting 82.81% in control, 85.07% in 10% FF, 87.71% in 40% FF and 81.25% in pure FF. On the examination for embryonal cleavage from fertilized eggs, the rates of developing to 4 cell stage was similar in all groups, as results 98.11% in control, 98.27% in 10% FF and 98% in 40% FF but 78.84% in pure FF. And the rates of developing to 8-16 cell stage were significantly reduced as 44% in 40% FF and 44.23% in pure FF (p<0.05) compare to 71.69% in control media. As likewise, the rates of developing to morular stage were also significantly reduced to 36% (p<0.05) and 21.15% (p<0.01) respectively in 40% FF and pure FF. And the rates to blastocystic stage of embryo was lowest as 7.69% in pure FF (Table 1). The quality of embryonal cells on cleavage to the 8-16 cell stage was poorer, higher concentrations of FF. The rates of grade 1 in pure FF, as 23.07%, was lowest compare to those of other groups, in which the rates of grade 1 in control, 10% FF and 40% FF were 58.49%, 47.36% and 34% respectively. And on the contrary, the rate of grade 4 in pure FF was highest as 23.07%, while those were 5.66% in control, 8.77% in 10% FF and 20% in 40% FF (Table 2). On the viability of embryos, the rate of embryonal cell death was more rise, at the higher concentrations as well as longer exposure in the follicular fluid. At 48 hours after in vitro culture of embryos, the rate of survival embryos in pure FF was markedly lowered as 44.23%, compare to that of control (p<0.05). But there was not significant difference between the rates of survival embryos in each group beside the pure FF, which the rates were 77.35% in control, 70.17% in 10% FF and 60% in 40% FF respectively. And at 72 hours after in vitro culture, the rates of survival embryos were also significantly dropped to 21.15% in pure and 36% in 40% at concentration of FF compare to 62.26% in control (p<0.05, p<0.01). Finally, the rate of embryonal death at 96 hours after in vitro culture was highest as 82.69% in pure FF among all groups which those were 35.84 in control, 56.14% in 10% FF and 64% in 40% FF respectively (Fig. 1, 2, 3). In conclusion, this study suggests that the FF has no effects, in particular, to the in vitro fertilization of oocytes but exerted a bad effect to the cleavage, quality and viability of the embryonal cells during in vitro culture. However, the FF is harmful on embryonal development at conditions in higher concentration and especially on the embryos after $8{\sim}16$ cell stage.

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소아의 미분화(태생) 간육종 (Undifferentiated (Embryonal) Sarcoma of the Liver in Children)

  • 김대연;김기홍;정성은;이성철;박귀원;김우기
    • Advances in pediatric surgery
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    • 제5권1호
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    • pp.33-38
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    • 1999
  • Undifferentiated (embryonal) sarcoma is a rare malignancy of the liver in children and young adults. Seven cases of undifferentiated (embryonal) sarcoma of the liver pathologically verified at Seoul National University Children's Hospital between 1986 and 1999 were retrospectively analyzed. There were three girls and four boys, and their mean age at diagnosis was 12.1 years (range 7-13 years). Six patients presented with an abdominal mass or pain, and one with weight loss. Tumor size ranged from $8.0{\times}8.0$ cm to $15.0{\times}15.0$ cm. Four tumors were located in the right lobe, two in the left lobe and one in both. One patient died during chemotherapy. Initial complete resection was accomplished in three patients. Two patients underwent complete resection after chemotherapy. Five patients with complete resection survived without evidence of disease for 8, 11, 13, 28, and 84 months. A patient with partial resection and chemotherapy died of sepsis during chemotherapy 19 months after complete surgical resection. Adjuvant chemotherapy and radiotherapy were performed in all patients after complete surgical resection. In conclusion, though undifferntiated (embryonal) sarcoma of the liver is highly malignant, the combination therapy of surgery, chemotherapy and radiotherapy appears to result in a favorable prognosis.

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Embryonal rhabdomyosarcoma in the abdominal cavity of an aged Sprague-Dawley rat

  • Kim, Hak-Soo;Jeon, Byung-Suk;Lee, Byung-Woo;Yoon, Byung-Il
    • 대한수의학회지
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    • 제55권1호
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    • pp.71-73
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    • 2015
  • We report a spontaneous embryonal rhabdomyosarcoma in the abdominal cavity of an aged (88-week-old) Sprague-Dawley rat. The animal had a firm lobulated $5{\times}5{\times}4.5cm$ mass in the abdominal cavity that was whitish to tan with necrotic and hemorrhagic plaques. Microscopically, the mass contained nodules with spindle or globoid shaped neoplastic cells with abundant eosinophilic cytoplasm and round or elongated nuclei mixed with other spindle cells with a filamentous appearance and scanty cytoplasm. Multinucleated cells and cross-striations were also observed. The neoplastic cells were positive for vimentin, desmin, and alpha-smooth muscle actin, especially the small spindle cells.

뇨세포검사로 진단된 방광의 배아성 횡문근육종 - 1 증례 보고 - (Embryonal Rhabdomyosarcoma of Urinary Bladder Diagnosed by Urine Cytology - A Case Report -)

  • 김주헌;이호;강명재;이동근;김상호
    • 대한세포병리학회지
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    • 제5권1호
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    • pp.71-73
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    • 1994
  • Rhabdomyosarcomas are found mainly in young patients, but rare in adults. A correlated cytological and histologic study of one case of embryonal rhabdomyosarcoma is presented. The cytologic appearance of the urine smear corresponded well with the histologic findings. Cytologically, two main cell types were distinguished ; a predominant primitive, small round cell with scant cytoplasm and a large cell with abundant cytoplasm. The cytologic feature proving rhabdomyoblastic differentiation, such as cross-striation, was absent.

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