• 제목/요약/키워드: Sphenoid Bone

검색결과 39건 처리시간 0.028초

Sphenoid bone changes in rapid maxillary expansion assessed with cone-beam computed tomography

  • Stepanko, Lucas S.;Lagravere, Manuel O.
    • 대한치과교정학회지
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    • 제46권5호
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    • pp.269-279
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    • 2016
  • Objective: Rapid maxillary expansion (RME) is used to expand the maxilla and increase arch perimeter; yet, there are few reports on its effects on the sphenoid bone. With cone-beam computed topography (CBCT), it is possible to visualize sphenoid bone changes. The purpose of this study was to investigate sphenoid bone changes observed in conjunction with RME treatments, using CBCT. Methods: Sixty patients (34 women and 26 men, aged 11-17 years) underwent RME as part of their orthodontic treatment. Patients were randomly assigned to one of three groups: a tooth-anchored group, a bone-anchored group, or a control group. Initial CBCT scans were performed preceding the RME treatment ($T_1$) and again directly after the completion of expansion ($T_2$). Statistical analysis included ANOVA, descriptive statistics, and the intraclass correlation coefficient (ICC). Results: The reliability of the landmark location was at least 0.783, and the largest ICC mean measurement error was 2.32 mm. With regard to distances, the largest change was 0.78 mm, which was not statistically significant (p > 0.05). Statistical significance was established in patient groups of the same sex and treatment type for the following distance measurements: right anterior lateral pterygoid plate to the right edge of the hypophyseal fossa ($d_2$), anterior distance between the medial pterygoid plates ($d_4$), and anterior distance between the left medial and lateral plates ($d_8$). Conclusions: In this study, there were no clinically significant changes in the sphenoid bone due to RME treatments regardless of sex or treatment type.

두개저의 혈관확장형 골육종 1례 (A Case of Telangiectatic Osteosarcoma of the Skull Base)

  • 김용진;오훈규
    • Journal of Yeungnam Medical Science
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    • 제16권2호
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    • pp.364-368
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    • 1999
  • 저자들은 약 1개월 전부터 좌측 관골부와 촉두부에 통증을 호소하면서 좌측 안구돌출과 복사가 생긴 27세 남자 환자에서 좌측 측두골과 접형골을 침범하는 골육종을 발견하였다. 방사선 검사상 종괴는 좌측 접형골의 대익부에 비교적 경계가 잘 지워지는 $3.5{\times}3.5cm$ 크기의 분엽상으로 보였다. 주변의 골융해 소견이 있으며 종괴 내부에는 이질성으로 조영증강된 고형부가 보이는 동질성의 낭성이었으며 특히 고형부에는 내부 체액수위를 보였다. 조직학적으로 종괴는 주로 역핵성 방추형 세포와 낭성 구조를 보였다. 종양세포 사이사이에는 아주 가는 호산성의 종양유골이 관찰되었다. 본 증례는 혈관 확장형 골육종으로서 1998년 Whitehead 등(1998)이 보고한 이래로 두 번째 예로 여겨진다.

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An Unusual Case of Cerebral Penetrating Injury by a Driven Bone Fragment Secondary to Blunt Head Trauma

  • Lee, Jae-Il;Ko, Jun-Kyeung;Cha, Seung-Heon;Han, In-Ho
    • Journal of Korean Neurosurgical Society
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    • 제50권6호
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    • pp.532-534
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    • 2011
  • Temple trauma that appears initially localized to the skin might possess intracranial complications. Early diagnosis and management of such complications are important, to avoid neurologic sequelae. Non-penetrating head injuries with intracranial hemorrhage caused by a driven bone fragment are extremely rare. A 53-year-old male was referred to our hospital because of intracerebral hemorrhage. He was a mechanic and one day before admission to a local clinic, tip of metallic rod hit his right temple while cutting the rod. Initial brain computed tomography (CT) and magnetic resonance imaging demonstrated scanty subdural hematoma at right temporal lobe and left falx and intracerebral hematoma at both frontal lobes. Facial CT with 3-D reconstruction images showed a small bony defect at the right sphenoid bone's greater wing and a small bone fragment at the left frontal lobe, crossing the falx. We present the unusual case of a temple trauma patient in whom a sphenoid bone fragment migrated from its origin upward, to the contralateral frontal lobe, producing hematoma along its trajectory.

접형골에 발생한 원발성 골육종 1예 - 증례보고 - (Primary Osteosarcoma of the Sphenoid Bone - Case Report -)

  • 양근진;김문철;정훈;이상평;최기환;여형태
    • Journal of Korean Neurosurgical Society
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    • 제29권5호
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    • pp.680-683
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    • 2000
  • Osteosarcoma is the most frequently encountered primary malignant tumor of the bone. But primary osteosarcoma of the skull(POS) is rare. The author presents a case of skull neoplasm identified as osteogenic sarcoma. A twentyseven-years-old male patient was admitted because of painful swelling at left temporal and zygomatic area with impairment of extraocular movement. Chest film and long bone series showed no evidence of abnormality. Skull films revealed round irregular bony destructive area at the left pterional area. CT and MRI revealed expansile destruction of the left sphenoid bone, lateral orbital wall and temporal bone within the hemorrhagic mass lesions which showed wall enhancement. Histologic examination confirmed a rare variant of osteosarcoma of the telangiectatic type.

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접형동에 발생한 콜레스테롤 육아종 - 증례보고 - (Cholesterol Granuloma in the Sphenoid Sinus - A Case Report -)

  • 김상수;문성근;김태영
    • Journal of Korean Neurosurgical Society
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    • 제30권7호
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    • pp.921-924
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    • 2001
  • The authors report a case of cholesterol granuloma in the sphoid sinus in 54-year old woman, which is probably the first report of cholesterol granuloma arising primarily in the sphenoid sinus apart from the petrous bone. The initial clinical presentations were unilateral decreased visual acuity and facial sensory change. The mass was removed totally via transsphenoidal route and the pathological examination revealed cholesterol clefts and chronic granulomatous changes. The differences between the present case and the previous reports are discussed.

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Combined extracranial and intracranial approach for resection of dermoid cyst of the sphenoid bone with a cutaneous sinus tract across the frontal branch of the facial nerve

  • Ishii, Naohiro;Fukazawa, Emi;Aoki, Tomoko;Kishi, Kazuo
    • 대한두개안면성형외과학회지
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    • 제20권2호
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    • pp.116-120
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    • 2019
  • Frontotemporal dermoid cysts with a cutaneous sinus tract in the sphenoid bone are rarely found, and furthermore, the spreading of these cysts across the frontal branch of the facial nerve has not been reported. Herein, we present a 5-year-old case of a dermoid cyst successfully resected with preservation of this nerve using a combined extracranial and intracranial approach. This approach is recommended for a safe and radical resection of the lesion and for securing an aesthetic outcome.

Surgical Outcomes of Sphenoid Wing Meningioma with Periorbital Invasion

  • Park, Ga-On;Park, Hyun Ho;Yoo, Jihwan;Hong, Chang-Ki;Oh, Jiwoong
    • Journal of Korean Neurosurgical Society
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    • 제65권3호
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    • pp.449-456
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    • 2022
  • Objective : The aim of this study was to evaluate the clinical outcome of sphenoid wing meningioma with periorbital invasion (PI) after operation. Methods : Sixty one patients with sphenoid wing meningioma were enrolled in this study. Their clinical conditions were monitored after the operation and followed up more than 5 years at the outpatient clinic of a single institution. Clinical and radiologic information of the patients were all recorded including the following parameters : presence of PI, presence of peri-tumor structure invasion, pathologic grade, extents of resection, presence of hyperostosis, exophthalmos index (EI), and surgical complications. We compared the above clinical parameters of the patients with sphenoid wing meningioma in the presence or absence of PI (non-PI), then linked the analyzed data with the clinical outcome of the patients. Results : Of 61 cases, there were 14 PI and 47 non-PI patients. PI group showed a significantly higher score of EI (1.37±0.24 vs. 1.00±0.01, p<0.001), more frequent presence of hyperostosis (85.7% vs. 14.3%, p<0.001), and lower rate of gross total resection (GTR) (35.7% vs. 68.1%, p=0.032). The lower score of pre-operative EI, the absence of both PI and hyperostosis, smaller tumor size, and the performance of GTR were associated with lower recurrence rates in the univariate analysis. However, in the multivariate analysis, the performance of GTR was the only significant factor to determine the recurrence rate (p=0.043). The incidences of surgical complications were not statistically different between the subtotal resection (STR) and GTR groups, but it was strongly associated tumor size (p=0.017). Conclusion : The GTR group showed lower recurrence rate than the STR group without differences in the surgical complications. Therefore, the GTR is strongly recommended to treat sphenoid wing meningioma with PI for the better clinical outcome.

실명을 주소로 한 신경아세포종 1예 (A Case of Neuroblastoma Presenting with Sudden Blindness)

  • 마인열;하정옥;김춘동;이태숙
    • Journal of Yeungnam Medical Science
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    • 제2권1호
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    • pp.259-264
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    • 1985
  • 신경아세포종은 소아기에 발생하는 악성종양중 뇌종양 다음으로 흔히 발생하는 것으로 원발 혹은 전이된 부위에 따라 다양한 임상증상이 나타날 수 있으나 실명을 주소로 한 경우는 드물다. 본 증례는 4세된 남아의 복부에서 기원하여 사골동으로 원위전이하여 갑작스런 실명을 주소로 한 신경아세포종으로 cytoxan, vincristine, DTIC, adriamycin 및 VM-26의 병합요법으로 치료하여 실명은 그대로 있으나 복부와 사골동의 종괴는 현저히 감소하였고 환아는 건강이 양호한 상태이다.

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Laser holography를 이용한 상악 headgear견인에 따른 안면두개골의 초기반응에 관한 연구 (A STUDY ON THE INITIAL REACTION OF CRANIOFACIAL COMPLEX TO MAXILLARY HEADGEAR TRACTION BY LASER HOLOGRAPHY)

  • 김충배;양원식
    • 대한치과교정학회지
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    • 제16권2호
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    • pp.31-41
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    • 1986
  • The purpose of this study is to examine the initial reaction of craniofacial complex to the traction of headgears which are frequent used in dinical practice by using holographic interference method. Changes in the fringe pattern according to the traction conditions (outer bow length, load amount, direction) were compared. Human dry skull was used as experimental material, the results were as follows. 1. The density of fringes increased with an increase in load. 2. Maxillary headgear affected circummaxillary bones-temporal bone, zygomatic bone, nasal bone, frontal bone, sphenoid bone as well as maxilla. 3. The most upward-backward displacement was observed in a high pull head gear $(30^{\circ})$, this is though to be a optimal direction for supressing the growth of the maxilla.

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측두하악관절 장애를 보인 두개저 골수염: 증례보고 (Temporomandibular Joint Disorder from Skull Base Osteomyelitis: A Case Report)

  • 류병길;윤현중;이상화
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제34권6호
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    • pp.484-487
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    • 2012
  • Skull base osteomyelitis is a very rare disease that affects the bone marrow of the temporal bone, sphenoid bone, occipital bone. It occurs typically chronic ear canal infections by malignant otitis externa, but some of atypical osteomyelitis have been reported. It most commonly presents old diabetic patients, and have high morbidity and mortality rate if diagnosis and treatment are delayed. However with respect to pain or dysfunction, it appeared similar to the initial symptoms of temporomandibular joint disorder. So frequently, definitive diagnosis is tend to delayed. We have clinical experience that a patient who presented with symptom similar to temporomandibular disorder, and differential diagnosised by skull base osteomyelitis. We will report this case with literature review.