• 제목/요약/키워드: Anatomic variation

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상소뇌동맥영역을 공급하는 지속성 원시 삼차신경동맥 변이 (Persistent Trigeminal Artery Variant Terminating in the Ipsilateral Superior Cerebellar Artery)

  • 박태영;이병훈;황윤준;이지영;배석현
    • 대한영상의학회지
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    • 제83권1호
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    • pp.184-188
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    • 2022
  • 지속성 원시 삼차신경동맥은 퇴화하지 않고 남아있는 내경동맥-기저추골동맥 문합이다. 변형 지속성 원시 삼차신경동맥은 드문 비정상적인 문합으로, 내경동맥과 기저동맥의 연결 없이 내경동맥에서 직접 혈관이 분지 되어 소뇌 동맥의 영역에 혈액을 공급한다. 본 연구진들은 그중에서도 변형 지속성 원시 삼차신경동맥이 동측의 상소뇌동맥 영역에 직접 혈액을 공급하는 특히 드문 증례를 발견하였다. 시행된 전산화단층촬영 혈관조영술, 디지털감산 혈관 조영술, 자기공명 혈관조영술 사진을 이용하여 이를 보고하고자 한다. 추가적으로 본 연구진들은 지속성 원시 삼차신경동맥과 변형 지속성 원시 삼차신경동맥의 발생학과 임상적 의미에 대하여 검토하였다.

두부축방향방사선규격사진에 있어서 하악과두의 두부방사선계측학적 연구 (A ROENTGENOGRAPHIC CEPHALOMETRIC STUDY OF CONDYLAR HEAD ON THE SUBMENTOVERTEX CEPHALOGRAM)

  • 백홍우;유영규
    • 치과방사선
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    • 제12권1호
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    • pp.49-56
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    • 1982
  • The purpose of this study was to observe the anatomic variation of condylar head and the positional relationship between condylar head and other anatomic structures of head by means of cephalometry using the submentovertex cephalogram from each person in centric occlusion for producing a good quality of temporomandibular joint radiograph. The 100 submentovertex cephalograms of 100 Korean adults consisted of 50 females ranged from 20 to 24 years age and 50 males ranged from 22 to 30 years age, were studied and analyzed statistically. The results were as follows; 1. The mean of the horizontal angulation of condylar head to the transmeatal line (EE-LA) was 18.5° (S.D. 7.9°), and all measurements that indicate the horizontal angulation of condylar head showed considerable differences among individuals. 2. In the comparison of male vs. female in the measurements, statistically significant differences were found in the majority of measurement items, and with exception of R-LA and LA-LA, the rest of these measurements were larger in male than in female. 3. In the comparison of left vs. right in the measurements, statistically significant differences were found in the majority of measurement items, and with exception of PC-CC, the rest of these measurements were larger in right than in left. As above, because the majority of measurements that involve the horizontal angulation of condylar head varied among individuals, between male and female, and between left and right, the condition of various temporomandibular joint radiography should be determined by means of cephalometry using the submentovertex cephalogram for producing the accurate radiographic image of temporomandibular joint.

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악하선관으로 연결되는 주설하관을 가진 설하선과 이에 발생한 선양낭성암종 1례 (A Case of Adenoid Cystic Carcinoma of Sublingual Gland Forming a Major Sublingual Duct, which Empties into Wharton's Duct)

  • 문성중;정영호;장미수;진홍률
    • 대한두경부종양학회지
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    • 제22권2호
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    • pp.171-174
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    • 2006
  • Tumors rarely arise in the sublingual salivary glands. They should be considered malignant until proved otherwise. Adenoid cystic carcinoma is most commonly encountered malignant tumor of the sublingual gland. We report a case of adenoid cystic carcinoma arising from the sublingual gland. Moreover, the sublingual gland had anatomic variation of main duct(Bartholin's duct) which is connected to Wharton's duct.

A long head of the biceps tendon confluent with the intraarticular rotator cuff: arthroscopic and MR arthrographic fndings

  • 김경천;이광진;신현대;변기용
    • 대한견주관절학회:학술대회논문집
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    • 대한견주관절학회 2008년도 제16차 학술대회
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    • pp.162-162
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    • 2008
  • Many anomalous origins of the long head of the biceps tendon (LHBT) have been reported. However, developmental anomalies of the LHBT are rarely encountered in daily practice. We report a patient with an anomalous LHBT that was adherent to and confluent with the rotator cuff throughout its intra-articular course and present the clinical, magnetic resonance arthrography, and arthroscopic findings.

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An Aneurysm Developing on the Infundibulum of Posterior Communicating Artery : Case Report and Literature Review

  • Jang, Woo-Youl;Joo, Sung-Pil;Kim, Tae-Sun;Kim, Jae-Hyoo
    • Journal of Korean Neurosurgical Society
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    • 제40권4호
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    • pp.293-295
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    • 2006
  • Infundibular dilatation is funnel-shaped symmetrical enlargement that occurs at the origin of cerebral arteries and which is apparent on 7 to 25% of normal angiograms. Infundibular dilatation is frequently considered a normal anatomic variation of no pathologic significance. The authors report a case in which an aneurysm developed on an infundibular dilatation of the posterior communicating artery [PComA]. A 72-year-old woman presented with severe headache, nausea, and vomiting. Digital subtraction angiography showed a saccular aneurysm arising from the origin of the left PComA. Operative findings revealed the aneurysm and infundibular widening of the right PComA. The aneurysm was successfully obliterated. Whether infundibular dilatation is a pre-aneurysmal state or a benign dilatation is controversial. However, we believe infundibular dilatation of the PComA in this case may have served as a pre-aneurysmal lesion.

Two Cases with Persistent Falcine Sinus as Congenital Variation

  • Kim, Myoung-Soo;Lee, Ghi-Jai
    • Journal of Korean Neurosurgical Society
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    • 제48권1호
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    • pp.82-84
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    • 2010
  • The falcine sinus is an abnormal anatomic structure located in the falx cerebri that is closed after birth and is rarely observed. We describe two cases of persistent falcine sinus. A 60-year-old woman presented with headache. An 11-year-old girl presented with intermittent headache and a palpable scalp mass in the middle of the high parietal area. The straight sinuses were absent in both patients. In both patients, drainage of the galenic system took place through a sinus within the falx, also known as a falcine sinus. Suspicious dysplastic tentorium cerebelli was observed in one patient. It can be concluded that a mesenchymal disorder can be the primary cause for a persistent falcine sinus.

Post-traumatic bifid mandibular condyle: A case report and literature review

  • Woo, Min-Ho;Yoon, Kyu-Ho;Park, Kwan-Soo;Park, Jae-An
    • Imaging Science in Dentistry
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    • 제46권3호
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    • pp.217-222
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    • 2016
  • Bifid mandibular condyle (BMC) is an uncommon morphological variant of the mandibular condyle. Although authors have proposed various etiologies for BMC, no consensus has emerged. In addition, varying findings have been reported regarding the epidemiological parameters of BMC (e.g., prevalence, gender ratio, and age), possibly due to its low incidence. BMC is occasionally associated with symptoms of the temporomandibular joint, such as ankylosis, pain, and trismus; however, it is difficult to detect this condition on conventional radiographs. This study reports a case of BMC with radiographic findings, and reviews the literature on the epidemiology of BMC.

영장동물폐(靈長動物肺)의 비교해부학적연구(比較解剖學的硏究) 2. 기관(氣管) 및 기관지(氣管枝)의 기하학적계측(幾何學的計測)과 폐중량(肺重量)에 관(關)한 연구(硏究) (Comparative Anatomic Structures of Nonhuman Primate Lungs 2. Tracheobronchial Geometry and Lung Lobe Weight)

  • 김무강
    • 대한수의학회지
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    • 제19권1호
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    • pp.9-15
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    • 1979
  • Anatomical measurements were made at the necoropsy and sacrifice in a group of 41 adult female Rhesus monkey to determine the 34 characteristcs found in tracheas snd bronchus. Table 1, 2, 3, 4, and figure 1 were therefore prepared as a guide in the further use for illustrating monkey lung research. Summary of this report is as follows: 1. Accurate Knowledge of these measurements may have some value in pulmonary dissection and reconstructive procedures. 2. These studies may provide a more accurate determination of the monkey lungs. 3. The right and left bronchus length of the monkey is shorter than fornd in man. 4. The left bronchus length is more longer than the rrght bronchas. 5. There were large variation among the weight of adult female Rhesus monkey.

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이공의 위치에 관한 X-선학적 연구 (ROENTGEN-ANATOMIC STUDIES ON THE MENTAL FORAMEN)

  • 이순표
    • 치과방사선
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    • 제2권1호
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    • pp.47-51
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    • 1972
  • The author measured the distance from mental foramen to the occusal plane and classified the positional frequency of mental foramen to the tooth site using topography. The results were obtained as follow; 1. Of 964 mental foramen taken, the common site was in 2nd premolar region showing 64.08 per cent in right and 57.17 per cent in left site. 2. The average distance from occlusal plane to the upper border of premolar region was 23.20㎜. and lower border was 25.07㎜. 3. The positional variation of mental foramen was 4.77 per cent were located above the apex of the nearest tooth, and 50.42 per cent were located at the apex of the nearest tooth and 44.81 per cent were located below the apex of the nearest tooth.

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콘빔형 전단화단층영상에서 관찰되는 하악관 분지 4 증례 (Mandibular canal branches supplying the mandibular third molar observed on cone beam computed tomographic images: Reports of four cases)

  • 이재서;윤숙자;강병철
    • Imaging Science in Dentistry
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    • 제39권4호
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    • pp.209-212
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    • 2009
  • Bifid mandibular canal can be an anatomic variation. This condition can lead to complication when performing mandibular anesthesia or during extraction of lower third molar, placement of implants and surgery in the mandible. Four patients underwent preoperative imaging for extraction of third molars using CBCT (CB Mercuray, Hitachi, Japan). The axial images were processed with CBworks program 2.1 (CyberMed Inc., Seoul, Korea). The branches for supplying the lower third molar were identified mainly on cross-sectional and panoramic images of CBCT. Since the location and configuration of mandibular canal variations are important in any mandibular surgical procedures, we report 4 cases of bifid mandibular canal with panoramic and the CBCT images.

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