• Tuberculosis and Respiratory Diseases
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• 제47권3호
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• pp.400-405
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• 1999

저자들은 간헐적으로 객혈을 하였던 18세 여자 환자에서 종격동 기형종의 자연파열에 의해 발현될 수 있는 심낭삼출 및 흉막삼출, 폐렴, 객혈 등의 소견이 동시에 발현된 증례를 경험하였기에 문헌고찰과 함께 보고하는 바이다.

• Archives of Plastic Surgery
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• 제48권5호
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• pp.518-523
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• 2021

Epignathus is a rare congenital orofacial teratoma that arises from the sphenoid region of the palate or the pharynx. It occurs in approximately 1:35,000 to 1:200,000 live births representing 2% to 9% of all teratomas. We present the case of a newborn of 39.4 weeks of gestation with a tumor that occupied the entire oral cavity. The patient was delivered by cesarean section. Oral resection was managed by pediatric surgery. Plastic surgery used virtual 3-dimensional models to establish the extension, and depth of the tumor. Bloc resection and reconstruction of the epignathus were performed. The mass was diagnosed as a mature teratoma associated with cleft lip and palate, nasoethmoidal meningocele that conditions hypertelorism, and a pseudomacrostoma. Tridimensional technology was applied to plan the surgical intervention. It contributed to a better understanding of the relationships between the tumor and the adjacent structures. This optimized the surgical approach and outcome.

• Journal of Chest Surgery
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• 제9권1호
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• pp.83-89
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• 1976

This is a report on the cases of benign mediastinal tumors in the Department of Thoracic and Cardiovascular Surgery, Chonnam University Hospital during the period from 1961 to 1975. Age distribution was from 18 to 62 years old with the highest incidence in the 3rd decade, and sex ratio of male to female was 7 : 8. The tumor were classified as follows; 6 cases of teratoma 5 cases of neurogenic tumor one case of pericardial cyst one case of cystic hygroma one case of dermoid cyst one case of bronchogenic cyst. The symptomatic patients were 10 cases (66.7%) and asymptomatic patients were 5 cases (33.3%), who were found incidentally by routine chest n-ray. The symptoms occurred by compression to the adjacent nerve system in 7 cases, by perforation into the lung with infection in one case of teratoma and by infection of bronchogenic cyst in one case and of teratoma in one case. Complications were Pancoast's syndrome including Horner's syndrome 2 cases, middle lobe syndrome 2 cases, intercostal neuralgia 1 case and bronchitis 1 case. All tumors were surgically resectable with good recovery. In all 10 cases of symptomatic patients, their symptoms disappeared dramatically after operation.

• Journal of Chest Surgery
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• 제39권9호
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• pp.729-732
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• 2006

외상에 의하여 심장눌림증을 유발한 종격동 양성낭기형종 종격동 기형종은 전체 종격동 종양의 $8\sim13%$ 빈도로 발생하며, 대부분 우연히 발견되지만 드물게 심낭 천공이 발생하여 심장눌림증을 유발하거나, 흉막삼출액을 고이게 한다. 본 증례에서는 전흉벽 타박상을 받은 여자 환자에게서 심장눌림증이 발생하였고, 응급 방사선검사에서 종격전부 종양이 확인되었으며 심장막천자술을 받은 후 활력징후가 회복되어 추후 수술적 절제술로 종양을 적출하였다. 조직검사에서 피지선, 성숙 지방종, 위장관점막, 호흡기도 점막 및 췌장의 조직 등으로 구성된 낭포성 구조물로 관찰되어 양성 낭기형종으로 판정되었다.

• Journal of Chest Surgery
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• 제37권8호
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• pp.711-714
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• 2004

폐동맥 내로 파열되어 응급수술이 필요했던 전종격동의 성숙 낭포성 기형종을 경험하였기에 보고하는 바이다. 39세 여자 환자가 대량객혈을 주소로 내원하여 기관지 동맥 색전술을 시행 받았다. 그러나 기관지 동맥 색전술 시행 10일 후 환자는 갑작스런 대량객혈과 함께 의식저하가 생겨 응급 개흉술을 시행하였다. 수술은 좌측 전폐절제술과 전종격동에 있는 종양절제술을 시행하였으며 조직학적 검사 결과 종양은 성숙 상피세포와 피지선, 성숙 지방조직, 연골, 골조직 등으로 구성된 낭포성 구조물로 관찰되었고, 좌 폐동맥으로 침습된 종양의 일부가 파열되어 폐내출혈을 보이고 있었다.

• Asian Pacific Journal of Cancer Prevention
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• 제14권10호
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• pp.5705-5711
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• 2013

Background: Embryonic stem cells (ESCs) have the potential to form teratomas when implanted into immunodeficient mice, but data in immunocompetent mice are limited. We therefore investigated teratoma formation after implantation of three different mouse ESC (mESC) lines into immunocompetent mice. Materials and Methods: BALB/c mice were injected with three highly germline competent mESCs (129Sv, BALB/c and C57BL/6) subcutaneously or under the kidney capsule. After 4 weeks, mice were euthanized and examined histologically for teratoma development. The incidence, size and composition of teratomas were compared using Pearson Chi-square, t-test for dependent variables, one-way analysis of variance and the nonparametric Kruskal-Wallis analysis of variance and median test. Results: Teratomas developed from all three cell lines. The incidence of formation was significantly higher under the kidney capsule compared to subcutaneous site and occurred in both allogeneic and syngeneic mice. Overall, the size of teratoma was largest with the 129Sv cell line and under the kidney capsule. Diverse embryonic stem cell-derived tissues, belonging to the three embryonic germ layers, were encountered, reflecting the pluripotency of embryonic stem cells. Most commonly represented tissues were nervous tissue, keratinizing stratified squamous epithelium (ectoderm), smooth muscle, striated muscle, cartilage, bone (mesoderm), and glandular tissue in the form of gut- and respiratory-like epithelia (endoderm). Conclusions: ESCs can form teratomas in immunocompetent mice and, therefore, removal of undifferentiated ESC is a pre-requisite for a safe use of ESC in cell-based therapies. In addition the genetic relationship of the origin of the cell lines to the ability to transplant plays a major role.

• 식물조직배양학회지
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• 제27권3호
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• pp.203-211
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• 2000

흰독말풀의 tumor조직에서 유도한 tumor callus로부터 scopolamine의 생산을 극대화하기 위한 연구를 수행하였다. Tumor callus의 생장률을 증가시키기 위해서는 초기접종량을 배지의 2%로 하고 배양기간은 4주가 효과적이다. 그래서 만일 이단계배양을 추진하려면 배지교체의 시기는 3주가 가장 적당한 것으로 확인되었다. Scopolamine의 생성을 위한 광의 효과를 알아본 결과, 암상태보다 광상태가 callus생장 및 scopolamine 함량 증가에 효과적이었다. Scopolamine 함량 증가의 최적 광량은 16$\mu$mo1 m$^{-2}$ s$^{-1}$, 광질은 적색파장 그리고 연속광보다 장일조건 (16/8)의 광주기에서 tropane alkaoid인 scopolamine합성이 현저히 촉진되었다. 질소원으로는 산화형 질소인 NO$_{3}$$^{-}$ 를 4 g/L로 증가시키는 것이 가장 효과적인 것으로 확인되었다. Scopolamine의 함량을 증가시키기 위한 elicitor 공급은 10 mg/L chitosan과 15 mg/L yeast추출물이 가장 효과적이었으며, 전구물질로는 0.2 mM tropine과 0.3 mM tropic acid가 가장 우수한 것으로 확인되었다. 이러한 결과를 종합해 보면, 흰독말풀 tumor callus에서 scopolamine 대량생산을 추진할 경우 3주 동안 광상태와 무기이온 조성을 균형 있게 조절하여 생장을 최대로 증가시킨 후, 1주 동안 scopolamine생산을 위해 elicitor, precursors 등이 조합된 배지에서 biotransformation 시키는 것이 가장 효과적일 것으로 판단된다. 또한 tumor callus에 $^{60}$Co${\gamma}$-ray을 조사하여 3K, 4K및 6k tumorcallus를 확보하였으며, 이들로부터 유도한 teratoma는 형태적 변이를 나타내었다. Teratoma로부터 또 다시 새로운 teratoma-callus 세포주를 유도하여 현탁배양을 수행하였던 바, MS 기본 배지에서 1.0 mg/L 2.4-D과 0.5 mg/L kinetin을 조합하여 처리한 callus 의 액체배양에서 cell aggregation이 일어나지 않고 세포가 유리화 되면서 왕성한 생장을 보였다.

• Journal of Chest Surgery
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• 제21권3호
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• pp.535-540
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• 1988

Many mediastinal masses seen radiologically are clinically asymptomatic. Only 55 to 65 percent of such lesions are asymptomatic, and of these many have only nonspecific symptoms by rupture, infection and pressure of surrounding organs. This report presents one case of a mediastinal teratoma which complicated an empyema. The patient was 7-year-old female and chief complaints were fever, left chest pain and general ache. In her past history, lung decortication and drainage procedure under the diagnosis of an empyema were carried out, 5 years ago, but she had not been improved, And so, explothoracotomy was done. At the time of operation, a mass of adult fist size was placed in the left anterior mediastinum and covered with the mediastinal pleura. Extirpation of the tumor and decortication were carried out and the left lung was remained.

• Journal of Chest Surgery
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• 제28권5호
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• pp.530-532
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• 1995

The teratomas seem to be the most common mediastinal tumor in Korea. However, the immature teratomas are the rarest type of these mediastinal teratomas. A case of immature teratoma of the mediastinum occurring in a newborn male is reported. He suffered from severe dyspnea since birth. Simple chest X-ray and chest sonogram revealed huge mass shadow in fight whole lung field. On 6th day after birth, the operation was done and the mass was completely excised. Biopsy showed elements of mature tissues derived from 3 germ cell layers including immature neuronal components. The baby is well without evidence of disease till now.

• Journal of Korean Neurosurgical Society
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• 제37권1호
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• pp.63-66
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• 2005

The authors report a case of Currarino triad which had a congenital anorectal stenosis associated with a sacral defect and a presacral mass. A 1-year-old female presented with constipation since birth. Neurological deficits were not found on admission. She had had a diverting colostomy due to anorectal stenosis at another hospital before admission. Lumbar X-ray films showed bony defect caudal to the third sacral vertebra. Magnetic resonance image demonstrated a round cystic pelvic mass which was connected with a dural sac via anterior sacral defect. Posterior approach with Intradural removal of the presacral cystic mass was performed and followed by anoplasty by a pediatric surgeon. The cystic mass was verified histologically as mature teratoma with cystic change. Postoperatively, the urinary function and bowel movement remained intact. Currarino triad should be suspected and evaluated physically and radiographically in a case of congenital anorectal stenosis. Prompt recognition and close cooperation between pediatric surgeons and neurosurgeons is advisable to ensure adequate surgical treatment.