• Title/Summary/Keyword: 기형유발

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Benign Mediastinal Cystic Teratoma Complicated by Cardiac Tamponade due to Trauma (외상에 의하여 심장눌림증을 유발한 종격동 양성낭기형종)

  • Choe Ju-Won;Kim Yong-In
    • Journal of Chest Surgery
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    • v.39 no.9 s.266
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    • pp.729-732
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    • 2006
  • Mediastinal teratoma is one of the most common lesions found in the anterior mediastinum, accounting for $8\sim13%$ of all mediastinal tumors. This tumor is incidentally detected by routine chest roentgengography, but pericardial perforation or pleural effusion occurs rarely. In our patient cardiac tamponade was developed due to anterior chest wall contusion, we confirmed the anterior mediastinal tumor. Vital signs were stabilized after the pericardiocentesis, and the patient underwent the tumor resection in the anterior mediastinum for a definite treatment. On histologic examination, the tumor revealed cystic structures composed of mature squamous epithelium, pilosebaceous glands, mature fat tissue, gastrointestinal mucosa, respiratory epithelium, and pancreatic tissues.

Intracerebral Hemorrhage Caused by Thrombosis of a Developmental Venous Anomaly with an Unusual Structure: A Case Report (특이한 구조의 뇌정맥발달기형 내 혈전증에 의해 생긴 뇌출혈: 증례 보고)

  • Sunhyang Lee;Dae Yoon Kim;Mi Kyung Kim;Hyun Jin Kim
    • Journal of the Korean Society of Radiology
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    • v.83 no.1
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    • pp.199-205
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    • 2022
  • Developmental venous anomalies (DVAs) are common intracranial vascular malformations and they are generally do not cause clinical complications. In cases showing DVA and hemorrhage, the hemorrhage is usually associated with adjacent cavernous malformations. Very few cases of intracerebral hemorrhage (ICH) caused by thrombosis in DVA have been reported in the literature. In this case report, we present an interesting case of a large ICH caused by thrombosis within a DVA with an unusual structure that may have potentiated the thrombosis.

Vascular Malformation of Flexor Hallucis Longus Muscle Associated with a Flexion Deformities of Toes: A Case Report (장무지 굴곡근의 혈관성 기형에 동반된 발가락의 굴곡 변형: 증례 보고)

  • Ahn, Jong-Chul;Kim, Jung-Rae;Shin, Ji-Hoon;Shin, Duk-Seop
    • The Journal of the Korean bone and joint tumor society
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    • v.17 no.2
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    • pp.100-105
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    • 2011
  • Vascular malformations may typically present with palpable mass that can be either asymptomatic or can present with symptoms including swelling and pain. On rare occasions, vascular malformation of muscle may produce joint deformities caused by contracture of the involved muscle. When vascular malformation involves the flexor muscle of the leg, ankle equinus deformity may occur. However, there are no reports of toe deformities secondary to intermuscular or intramuscular vascular malformations of flexor muscles of toe. Thus, we report a case of vascular malformation of flexor hallucis longus muscle with flexion contracture of toes in a 40-years-old woman who was treated with surgical excision.

중금속이 양서류의 발생에 미치는 특성 효과

  • 정해문;김윤경
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1994.04a
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    • pp.326-326
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    • 1994
  • 중금속이 양서류의 발생에 미치는 영향을 알아보기 위해 Xenopus embryo 2 할구기부터 카드뮴, 수은, 납. 구리, 아연 등을 여러 농도로 지속적으로 처리한 후 치사율과 이상 발생율을 조사하였다 그 결과 수은, 카드뮴. 구리, 납. 아연의 순으로 독성이 강함을 알 수 있다. 중금속 중 카드뮴 처리시 나타나는 현상으로는 창자, 눈, 체축. 지느러미, 십장 등의 이상과 수포 등을 들 수 있다. FETAX (frog Embryo Teratogenesis Assay : Xenopus)의 분석 결과 LC$_{100}$ 은 1.5 ppm, EC$_{100}$은 1PPm 이었고 기형 유발지수(TI)가 2. 8 인 점으로 보아 카드뮴을 Xenopus embryo에 있어서 기형유발원으로 분류할 수 있다.

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Surgical Therapy of Airway Compression with Severe Kyphoscoliosis (심한 척추기형을 동반한 기도협착의 수술적 교정 1례)

  • 조현민;이누가;이두연
    • Journal of Chest Surgery
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    • v.35 no.11
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    • pp.839-841
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    • 2002
  • Generally, patients who have airway compression with severe kyphoscoliosis can be improved through surgery for the thoracolumbar deformity. However, abnormal thoracic configuration due to severe kyphoscoliosis can cause respiratory distress secondary to severe compression of central airway in uncorrectable case. We tried to elevate the chest wall and obtained relatively good result in case of airway compression with abnormal thoracic configuration which was difficult to correct.

Coronary Artery Anomaly, What Radiologist Should Know? (영상의학과 의사가 꼭 알아야 할 관상동맥기형)

  • Hyun Jin Lee;Jin Young Kim
    • Journal of the Korean Society of Radiology
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    • v.83 no.1
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    • pp.84-101
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    • 2022
  • Cardiac CT is the most accurate tool for diagnosing and evaluating coronary artery anomalies. Coronary anomalies can often be observed as the number of cardiac CT scans increases. In this review article, we described the CT findings and clinical significance of coronary anomalies that radiologists should know. In particular, we described the dangerous anatomical findings of coronary anomalies on CT images in detail.

A CASE REPORT OF NEUROCRISTOPATHY THAT SHOWS OBLIQUE FACIAL CLEFT, MAXILLARY DUPLICATION AND OTHER FACIAL MALFORMATIONS (사선안면열, 상악돌기 중복 등 복합 기형을 유발한 신경능병변 환자의 치험례)

  • Ryu, Dong-Mok;Lee, Sang-Chull;Kim, Yeo-Gab;Lee, Baek-Soo;Choi, You-Sung
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.21 no.4
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    • pp.407-413
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    • 1999
  • Maxillary duplication is a kind of proliferative neurocristopathy and considered to arise from bifurcation of neural crest elements soon after migration into mandibular arch. Sometimes this malformation is accompanied with oblique facial cleft. Usually this type of maxillofacial malformation requires multiple surgical intervention and the results are far from ideal. It became more troublesome if it had not been properly corrected on time, because secondary deformities could be developed from growth and development of abnormal tissues. This is a case of a 25-year-old-female patient who showed severe facial asymmetry thought to secondary deformity of maxillary duplication and masticatory disturbance due to multiple supernumerary teeth on posterior part right maxilla. We successully treated these deformities through four times of surgery of bone resection, orthodontic treatment, zygomatic and orbital reconstruction, orthognathic surgery and scar revision... ect. So we reported this rare case with review of literatures.

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Studies on Toxicological Evaluation of Pesticides(Fungicide, Insecticide, Herbicide) using Tree Frog Embryos, Hyla japonica (청개구리 배아를 활용한 농약류(살균제, 살충제, 제초제)의 독성평가 연구)

  • Yoon, Pil-Sang;Ko, Sun-Kun
    • Korean Journal of Environment and Ecology
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    • v.33 no.2
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    • pp.178-186
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    • 2019
  • This study used the probit analysis to evaluate the toxicity of three chemicals - benomyl (Germicide), carbofuran (insecticide), and thiobencarb (herbicide) - with the FETAX (Frog Embryo Teratogenesis Assay-Xenopus) protocol using the incubated embryos of tree frog, Hyla japonica. The results showed that the larval body length decreased while the mortality and malformation rates increased as the concentrations of benomyl, carbofuran, and thiobencarb increased. The teratogenic concentration ($EC_{50}$) of benomyl, carbofuran, and thiobencarb were 1.00, 0.58, 4.75 mg/L, respectively, indicating that the malformation of larvae was the most sensitive to carbofuran. The embryo lethal concentration ($LC_{50}$) was 7.04, 28.71, and 16.12mg/L, respectively, indicating that benomyl showed the lowest embryo lethal concentration. The teratogenic index (TI) was 7.04 in Benomyl, 49.50 in Carbofuran, and 3.39 in Thiobencarb, indicating that the TI values were above 1.5, which is the criterion of teratogenicity, for all three chemicals. All three pesticides examined by this study were considered to be the most teratogenic substances, and the carbofuran was the most potent teratogen.