• 제목/요약/키워드: misdiagnosis

검색결과 202건 처리시간 0.028초

한국 갯벌 생태 등급도의 개발 필요성과 방향 (Development Needs and Direction of an Ecological Grading System of Korean Tidal Flats)

  • 유재원;이창근;고병설;이시완;한동욱;최근형;김창수;홍재상
    • Ocean and Polar Research
    • /
    • 제32권2호
    • /
    • pp.137-144
    • /
    • 2010
  • There is a host of habitat assessment systems available to evaluate and grade tidal flat ecosystems in Korea. Nevertheless, we recognize the need to develop a better ecological scheme to improve reliability and accuracy given the importance of using an empirical approach in assigning grades to indicators and the limitation of current systems which evaluate tidal flats on a regional basis. A preferable system would be one that enables habitat mapping within a tidal flat, provides a diagnosis of ecological stress/health, has a high level of ecological relevance, communicability, and statistical robustness, and enables evaluation of diverse habitats within a tidal flat. The following points should be considered in framing such a system. Indicators should discriminate habitat quality into five to seven grades accomodating diverse characteristics and conservation value of a habitat, and the grading should be made from frequency distribution of indicators based on nationwide data.We suggest the following tasks in crafting such a system: i) The decision on selection of indicators should be made based on accuracy of assessment and practical application; ii) effects of physical habitat conditions on variability of indicators should be reflected; and, iii) further works on stress/health indicators should be addressed for adopting a multiple-indicator approach which reduces misdiagnosis.

인슐린 분비성 췌장세포암 1례 (One Case of Insulinoma)

  • 안재희;서혜상;윤성철;윤경우;최수봉;이현우
    • Journal of Yeungnam Medical Science
    • /
    • 제5권2호
    • /
    • pp.205-211
    • /
    • 1988
  • 본 저자들은 44세의 여자환자로 3년전부터 발생한 경련성 발작후 의식소실로 간질로 진단 받은 후 항경련제를 투여받았으나 효과가 없었던, 금식검사에서 혈청 insulin, C-peptide, glucose, 24시간 뇨 c-peptide 및 선택적 췌장동맥 촬영술로 인술린종을 진단, 수술로 종물을 적출후 경련성 발작이 사라진 인술린종 1례를 경험하였기에 문헌고찰과 함께 보고하는 바이다.

  • PDF

원격건강정보 모니터링 시스템에서 신원기반 프록시 재암호화 기법을 이용한 건강정보 전송 보안 프로토콜 (A Secure Health Data Transmission Protocol Using Identity-Based Proxy Re-Encryption in Remote Healthcare Monitoring System)

  • 노시완;박영호;이경현
    • 정보처리학회논문지:컴퓨터 및 통신 시스템
    • /
    • 제6권4호
    • /
    • pp.197-202
    • /
    • 2017
  • 원격 건강정보 모니터링 시스템에서 의사는 원격지에서 환자의 건강상태를 진단하거나 모니터링하여 적절한 의료서비스를 제공한다. 기존의 연구들은 공개된 네트워크를 통한 전송과정에서 환자의 민감한 건강정보의 노출로 인한 문제를 해결하기 위해 환자와 의사 사이에 비밀 공유키를 생성하여 메시지를 암호화하는 방법에 중점을 두고 있었다. 하지만 의사의 오진을 고려할 때 다수의 의사에게 진단을 받는 것이 좀 더 신뢰할 수 있는 진단결과를 얻을 수 있다. 하지만 기존 프로토콜에서는 환자가 여러 의사에게 메시지를 전달하기 위해서는 모든 의사와 각각 공유하는 키의 생성이 필요하고 전송과정에서 선택한 모든 의사들을 위해 여러 번의 암호문 생성과정을 필요로 하였다. 이에 본 논문에서는 신원기반 프록시 재암호화 기법을 사용한 원격건강정보 모니터링 시스템의 전송 보안 프로토콜을 제안한다. 제안 프로토콜에서 환자는 별도의 세션키 관리가 필요하지 않고 전송과정에서 환자가 비밀키로 생성한 암호문을 모니터링 서버에서 재암호화하여 선택한 의사에게 전달하므로 기존 프로토콜을 적용했을 때 환자에게 필요한 과도한 연산부담을 개선할 수 있다.

골반 방사선 치료후의 골 변화와 손상 (Post Pelvic Radiotherapy Bony Changes)

  • 허승재
    • Radiation Oncology Journal
    • /
    • 제27권1호
    • /
    • pp.1-9
    • /
    • 2009
  • 방사선치료후 발생할 수 있는 골 손상은 골반 부전골절, 방사선 골 괴사, 무혈성 괴사, 골 육종 등이다, 특히 최근 방사선치료후의 골탄성도의 변화로 발생하는 골반 부전골절에 관하여 많은 보고가 있었다. 과거 방사선치료 후의 골 손상 특히 골절의 빈도는 선형가속기를 이용한 메가볼트 방사선치료 바뀌면서 현저히 줄어 들어서 매우 낮은 것으로 보고 되었으나 최근에는 $8{\sim}20%$로 보고가 되고 있다. 따라서 골반 부전골절의 임상적 의미와 중요성과 예방 및 치료에 대하여 관심이 증가되고 있다. 저자는 자궁경부암 치료 후 관찰한 골반 부전골절, 골 괴사, 무혈성 괴사, 및 2차성 골육종등 골반골 변화와 손상에 관하여 저자의 경험과 문헌고찰을 통하여 보고 하고자 한다.

한국농촌(韓國農村)의 기생충성인축공통질환(寄生蟲性人畜共通疾患)의 현황(現況)과 문제점(問題點) (Current Problems of Parasitic Zoonoses in Rural Korea)

  • 임한종
    • 농촌의학ㆍ지역보건
    • /
    • 제15권1호
    • /
    • pp.49-55
    • /
    • 1990
  • Zoonoses are those diseases and infections that are naturally transmitted between vertebrate animals and man. At present, approximately 175 diseases caused by virus, rickettsia, bacteria, protozoa and helminthes as well as some of arthropods and the number is continually increasing. Although zoonoses are generally recognized as significant health problems, the actual prevalence and incidence of zoonotic infections is difficult to determine. Medical services in a rural area are scarce and ill persons may have little chance to see a physician. Furthermore, a lack of physician awareness and of appropriate diagnostic support is made often misdiagnosis. In rural Korea, parasitic disease is still important subject in the field of zoonotic infections considering its number and morbidity. Recently there was conspicuous reduction of soil-transmitted parasitic diseases (i.e. ascariasis. hookworms, trichuriasis), but clonorchiasis. intestinal trematodiases and taeniasis are a considerable problem. This is often significantly related to human behavioral patterns based on socio-economic and cultural conditions and linked with the local biologic and physical environment. The most of all parasitic zoonoses to man and animals are the food-transmitted parasitic diseases, and domestic animals such as dog, cat, pig, as well as fat and some mammals, ruminants and birds are act as reservoir hosts. In the present topics, current problems of parasitic zoonoses caused by protozoan infections (i. e. toxoplasmosis, pneumocystosis and cryptosporidiosis) which are the most common opportunistic in AIDS or immunocompromised persons, trematode infections (i.e. clonorchiasis, paragonimiasis and some intestinal tremadodiases). cestode infections such as cysticercosis and sparganosis, and some nematode infections of anisakiasis, thelaziasis and strongyloidiasis, are discussed here those on the occurrence in man and animals and the source of transmission as well as prevention and control measures in Korea.

  • PDF

Comparison of condylar displacement between three biotypological facial groups by using mounted models and a mandibular position indicator

  • Ponces, Maria Joao;Tavares, Jose Pedro;Lopes, Jorge Dias;Ferreira, Afonso Pinhao
    • 대한치과교정학회지
    • /
    • 제44권6호
    • /
    • pp.312-319
    • /
    • 2014
  • Objective: Facial-type-associated variations in diagnostic features have several implications in orthodontics. For example, in hyperdivergent craniofacial types, growth imbalances are compensated by displacement of the condyle. When diagnosis and treatment planning involves centric relation (CR), detailed knowledge of the condylar position is desirable. The present study aimed to measure condylar displacement (CD) between CR and maximum intercuspation in three facial types of an asymptomatic orthodontic population. Methods: The study was conducted in 108 patients classified into three groups of 36 individuals each (27 women and 9 men; mean age, 20.5 years), based on the following facial patterns: hyperdivergent, hypodivergent, and intermediate. To quantify CD along the horizontal and vertical axes, the condylar position was analyzed using mounted casts on a semi-adjustable articulator and a mandibular position indicator. The Student t-test was used to compare CD between the groups. Results: Vertical displacement was found to be significantly different between the hyperdivergent and hypodivergent groups (p < 0.0002) and between the hyperdivergent and intermediate groups (p < 0.0006). The differences in horizontal displacement were not significant between the groups. In each group, vertical CD was more evident than horizontal displacement was. Conclusions: All facial types, especially the hyperdivergent type, carried a significantly high risk of CD. Therefore, the possibility of CD should be carefully evaluated and considered in the assessment of all orthodontic cases in order to accurately assess jaw relationships and avoid possible misdiagnosis.

이하선 다형성 선종의 괴사 (NECROSIS OF A PAROTID GLAND PLEOMORPHIC ADENOMA : A CASE REPORT)

  • 유선열;백승;박홍주;최홍란
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
    • /
    • 제30권2호
    • /
    • pp.165-169
    • /
    • 2004
  • 본 증례는 우측 이하선에 종물을 가진 50세 여자 환자에서 술전에 시행한 세침흡인검사와 전산화단층촬영 소견 및 술중에 시행한 동결생검에서 괴사소견으로 인해 점액표피양암종으로 진단되어 우측 이하선 전적출술과 경부청소술 등을 시행하였으나 수술 후 조직병리학적 검사에서 괴사를 동반한 다형성 선종으로 최종 진단되었다. 괴사를 동반한 다형성 선종에서 보이는 편평 상피세포는 점액표피양암종에서 나타나는 편평세포의 특징으로 오진할 수 있으므로 주의해야 한다. 본 증례는 악성종양으로 잘못 진단할 수 있는 다형성 선종의 괴사와 조직병리학적 특징들을 이해함으로써 임상의사들의 오진 가능성을 예방하고 다형성 선종의 진단과 치료에 주의해야 함을 시사한다.

Desmoplastic melanoma of the oral cavity: diagnostic pitfalls and clinical characteristics

  • Min, Seung-Ki;Jeong, Joo Hee;Ahn, Kang-Min;Yoo, Chong Woo;Park, Joo Yong;Choi, Sung Weon
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
    • /
    • 제44권2호
    • /
    • pp.66-72
    • /
    • 2018
  • Objectives: Desmoplastic melanoma of the oral cavity is an extremely rare condition that is often confused on initial diagnosis with non-melanotic benign lesion or spindle cell tumors. The purpose of this article was to raise awareness of the disease using a literature review. Materials and Methods: We analyzed 19 desmoplastic melanoma cases reported in the literature and added our experience. Data on clinical, histopathology, treatment, and survival were retrieved and analyzed. Survival analysis was by the Kaplan-Meier method. Results: Initial clinical and histopathological features were indistinctive, and a definite diagnosis of desmoplastic melanoma at initial assessment was possible in only 23.5% of cases. Among tests, immunohistochemical studies for S-100 and vimentin were all positive. The 5-year disease-free survival rate for oral desmoplastic melanoma was 0%, and the 5-year overall survival rate was 55.0%. Conclusion: Oral desmoplastic melanoma has a high percentage of initial misdiagnosis and propensity for local recurrence. Thus, careful initial diagnosis and adequate surgery may result in improved overall survival.

Tumors Involving Skin, Soft Tissue and Skeletal Muscle: Benign, Primary Malignant or Metastatic?

  • Hsieh, Chi-Ying;Tsai, Huang-Wen;Chang, Chih-Chun;Lin, Tsuo-Wu;Chang, Ke-Chung;Chen, Yo-Shen
    • Asian Pacific Journal of Cancer Prevention
    • /
    • 제16권15호
    • /
    • pp.6681-6684
    • /
    • 2015
  • Background: Metastatic cancer with invasion of skin, soft tissue and skeletal muscle is not common. Examples presenting as soft tissue masses could sometimes lead to misdiagnosis with delayed or inappropriate management. The purpose of current study was to investigate clinical characteristics in the involvement of metastatic cancer. Materials and Methods: A total of 1,097 patients complaining of skin or soft tissue masses and/or lesions were retrospectively reviewed from January 2012 to June 2013. Tumors involving skin, soft tissue and skeletal muscle of head and neck, chest wall, abdominal wall, pelvic region, back, upper and lower extremities were included in the study. Results: Fifty-seven (5.2%) patients were recognized as having malignancies on histopathological examination. The most common involvement of malignancy was basal cell carcinoma, followed by cutaneous squamous cell carcinoma, sarcoma and melanoma. The most common anatomical location in skin and soft tissue malignancies was head and neck (52.6% of the malignancies). Four (0.36%) of the malignant group were identified as metastatic cancer with the primary cancer source from lung, liver and tonsil and the most common site was upper extremities. One of them unexpectedly expired during the operation of metastatic tumor excision at the scalp. Conclusions: Discrimination between benign and malignant soft tissue tumors is crucial. Performance of imaging study could assist in the differential diagnosis and the pre-operative risk evaluation of metastatic tumors involving skin, soft tissue and skeletal muscle.

미후등식장탕으로 오치하여 복통(腹痛), 자한(自汗), 오심(惡心)이 발생한 소음인 직장암 환자 1례 증례보고 (A Case of Soeumin Rectal Cancer Misdiagnosed as a Taeyangin and Mistreated with Mihuedungsikjang-tang)

  • 안지혜;권은미;송안나;김은희;박소정;정의홍;최원철;이수경
    • 사상체질의학회지
    • /
    • 제23권4호
    • /
    • pp.533-540
    • /
    • 2011
  • In this case, we report a case of Soeumin rectal cancer patient who was mistreated with herb medication. This patient was 72 years old female diagnosed rectal cancer stage IV with multiple liver, lung, and LN metastases. She administered our cancer center in Sep. 2011 for cancer treatment, we diagnosed this patient as Taeyangin at first, and treated with Mihuedungsikjang-tang. After 1 week, she complained upper abdominal discomfort, severe abdominal pain, nausea and sweating. Considering several symptoms and conditions, the change of symptoms seemed to a adverse events caused by mistreatment. We re-diagnosed this patient as Soeumin, and treated with Soeumin herbal medication, Baekhaoleejung-tang(白何烏理中湯) and Hyangsayangyi-tang(香砂養胃湯). Several symptoms including abdominal pain were improved 2 weeks later. Therefore, we report this case as a reference that Soeumin misdiagnosed as Taeyangin and the improvement of adverse symptoms.