scholarly journals Unusual presentation of an unusual disease: A very delayed diagnosis of Grisel’s syndrome

2021 ◽  
Vol 67 (2) ◽  
pp. 259-263
Author(s):  
Cevriye Mülkoğlu ◽  
Hakan Genç ◽  
Seçil Vural ◽  
Başak Mansız-Kaplan
Keyword(s):  
Computed Tomography ◽  
Outpatient Clinic ◽  
Rare Case ◽  
Three Dimensional ◽  
Delayed Diagnosis ◽  
Atlantoaxial Subluxation ◽  
Neck Stiffness ◽  
Upper Respiratory Infection ◽  
Grisel’S Syndrome ◽  
Upper Respiratory

Grisel’s syndrome (GS) is a rare syndrome which refers only to non-traumatic atlantoaxial subluxation. This syndrome predominantly occurs in young children following an upper respiratory infection or otolaryngologic procedures. An eight-year-old girl with a delayed diagnosis of GS was admitted to our outpatient clinic with complaints of painful torticollis and neck stiffness. Three-dimensional computed tomography revealed rotatory atlantoaxial subluxation. After consulting with the neurosurgery department, the patient underwent surgery. The significance of this patient was that she was unable to be diagnosed early and atlantoaxial subluxation remained hidden for five years without any complications. In conclusion, this rare case highlights the importance of delayed diagnosis of GS and clinicians should be aware of this syndrome.

scholarly journals Correlation of brachycephaly grade with level of exophthalmos, reduced airway passages and degree of dental malalignment’ in Persian cats

PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254420
Author(s):  
Jana Sieslack ◽  
Daniela Farke ◽  
Klaus Failing ◽  
Martin Kramer ◽  
Martin J. Schmidt
Keyword(s):  
Computed Tomography ◽  
Three Dimensional ◽  
Direct Relation ◽  
Flow Area ◽  
Nasal Airways ◽  
Axial Deviation ◽  
Cranial Index ◽  
Upper Respiratory ◽  
Upper Jaw ◽  
Lower Height

For many years, there has been a trend to breed cats with an increasing degree of brachycephalic head features, which are known to have a severe impact on the animals’ health and welfare. The direct relation between different grades of brachycephaly and their negative implications have not been researched in this species. The aim of this study was therefore to establish correlations between the different grades of brachycephaly and reduced upper respiratory airways, exophthalmos of the eye globes and malalignment of the teeth in Persian cats. Sixty-nine Persian cats of various skull dimensions and ten Domestic shorthair cats were recruited for the study. The cats’ skulls were examined using three-dimensional reconstructions created from Computed Tomography datasets. Brachycephaly was graded using established craniometric measurements (facial index, cranial index, skull index, craniofacial angle). The flow area of the nasal passageways at different locations, the amount of the eye globe not supported by the bony orbit and the axial deviation of the teeth were quantified and evaluated for a correlation with the grade of brachycephaly. The results of this study clearly show that increased grades of brachycephaly in Persian cats resulted in larger extra-orbital parts of the ocular bulbs. The brachycephalic skull dimension also resulted in a lower height of the naso-osseal aperture, while other areas of the nasal airways were not correlated with the severity of brachycephaly. Persian cats showed a significantly increased occurrence of premolar tooth displacement in the upper jaw with increasing brachycephaly grades. It was interesting to note that the measured values had a broad range and values of some individual Persian cats showed an overlap with those of Domestic shorthair cats.

scholarly journals VATS right upper posterior segmentectomy with anomalous bronchiand pulmonary vessels: a case report and literature review

2020 ◽  
Author(s):  
Jianbin Zhang ◽  
Yilv Zhu ◽  
Hongwei Li ◽  
Caihua Yu ◽  
Weiwei Min
Keyword(s):  
Computed Tomography ◽  
Case Report ◽  
Rare Case ◽  
Anatomic Variation ◽  
Three Dimensional ◽  
Posterior Segment ◽  
Detailed Model ◽  
Case Presentation ◽  
Pulmonary Vessels ◽  
The Right

Abstract BackgroundAnatomic variation may increase the difficulty and risk for anatomic segmentectomy. The preoperative three-dimensional computed tomography bronchography and angiography(3D-CTBA) can provide a detailed model of the segmental structure, and contribute to precise and safe segmentectomy.Case presentationWe report a case with anomalous bronchi and pulmonary vessels in the right upper posterior segment (RS2), under the guidance of 3D-CTBA, anatomic RS2segmentoctomywas performed accurately and safely, the postoperative condition was uneventful.ConclusionsThis rare case highlights the importance of 3D-CTBA to guild accurate segmentectomy with anatomic variation.

scholarly journals VATS right posterior segmentectomy with anomalous bronchi and pulmonary vessels: a case report and literature review

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Jianbin Zhang ◽  
Yilv Zhu ◽  
Hongwei Li ◽  
Caihua Yu ◽  
Weiwei Min
Keyword(s):  
Computed Tomography ◽  
Case Report ◽  
Rare Case ◽  
Anatomic Variation ◽  
Three Dimensional ◽  
Posterior Segment ◽  
Detailed Model ◽  
Case Presentation ◽  
Pulmonary Vessels ◽  
The Right

Abstract Background Anatomic variation may increase the difficulty and risk of anatomic segmentectomy. The preoperative three-dimensional computed tomography bronchography and angiography (3D-CTBA) can provide a detailed model of the segmental structure, and contribute to precise and safe segmentectomy. Case presentation This is a case of anomalous bronchi and pulmonary vessels in the right upper posterior segment (RS2). Under the guidance of 3D-CTBA, anatomic RS2 segmentectomy was performed accurately and safely. The postoperative condition was uneventful. Conclusions This rare case highlights the importance of 3D-CTBA to guild accurate segmentectomy with anatomic variation.

scholarly journals Mandibular First Molar with Vertucci Type I Canal Configuration diagnosed with the Help of Cone Beam Computed Tomography: A Rare Case Report

2014 ◽  
Vol 15 (6) ◽  
pp. 784-787
Author(s):  
Manoj Agarwal ◽  
HP Trivedi ◽  
Ankit Gaur ◽  
Manju Gupta ◽  
Anuradha Sharma ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Case Report ◽  
Cone Beam Computed Tomography ◽  
Rare Case ◽  
Three Dimensional ◽  
Anatomical Variations ◽  
Cone Beam ◽  
Type I ◽  
Rare Case Report ◽  
Mandibular First Molar

ABSTRACT The knowledge of root canal morphology and the existing anatomical variations is essential for successful endodontic therapy. This report presents an extraordinary case of unusual tooth morphology involving the mandibular first molar with a single root and a single canal in a patient. Endodontic treatment of the affected tooth 36 was performed. Cone beam computed tomography (CBCT) images confirmed our diagnostic and therapeutic measures after endodontic management of the teeth. This morphologic variation has been reported once in the literature. The availability of three-dimensional images further provided the opportunity for the precise description of the anatomy of mandibular first molar with single roots and single canals. How to cite this article Gaur A, Trivedi HP, Gupta M, Sharma A, Likhyani L, Agarwal M. Mandibular First Molar with Vertucci Type I Canal Configuration diagnosed with the Help of Cone Beam Computed Tomography: A Rare Case Report. J Contemp Dent Pract 2014;15(6):784-787.

Atlantoaxial Subluxation and Cervical Osteomyelitis: Two Unusual Complications of Adenoidectomy

1996 ◽  
Vol 105 (4) ◽  
pp. 295-299 ◽  
Author(s):  
Leslie L. Baker ◽  
Charles M. Bower ◽  
Charles M. Glasier
Keyword(s):  
Computed Tomography ◽  
Surgical Intervention ◽  
Atlantoaxial Subluxation ◽  
Proper Treatment ◽  
Intravenous Antibiotics ◽  
Grisel’S Syndrome ◽  
Flexion Extension ◽  
Neurologic Sequelae ◽  
High Index Of Suspicion

Grisel's syndrome (atlantoaxial subluxation) and cervical osteomyelitis are two unusual complications of adenoidectomy. We present two patients; one with atlanto-axial subluxation following uncomplicated tonsillectomy and adenoidectomy, and one with cervical osteomyelitis following uncomplicated adenoidectomy. Both patients presented with persistent postoperative neck pain. Surgical intervention, as well as long-term intravenous antibiotics, was required. A high index of suspicion, as well as cervical spinal series with flexion-extension views, is necessary for diagnosis. Flexible nasopharyngoscopy and computed tomography of the cervical spine also aided in diagnosis and treatment planning. With early diagnosis and proper treatment, the prognosis is good. Neurologic sequelae were prevented in both of our patients.

scholarly journals VATS right upper posterior segmentectomy with anomalous bronchiand pulmonary vessels: a case report and literature review

2021 ◽  
Author(s):  
Jianbin Zhang ◽  
Yilv Zhu ◽  
Hongwei Li ◽  
Caihua Yu ◽  
Weiwei Min
Keyword(s):  
Computed Tomography ◽  
Case Report ◽  
Rare Case ◽  
Anatomic Variation ◽  
Three Dimensional ◽  
Posterior Segment ◽  
Detailed Model ◽  
Case Presentation ◽  
Pulmonary Vessels ◽  
The Right

Abstract Background: Anatomic variation may increase the difficulty and risk for anatomic segmentectomy. The preoperative three-dimensional computed tomography bronchography and angiography(3D-CTBA) can provide a detailed model of the segmental structure, and contribute to precise and safe segmentectomy. Case presentation : We report a case with anomalous bronchi and pulmonary vessels in the right upper posterior segment (RS 2 ), under the guidance of 3D-CTBA, anatomic RS 2 segmentoctomywas performed accurately and safely, the postoperative condition was uneventful. Conclusions: This rare case highlights the importance of 3D-CTBA to guild accurate segmentectomy with anatomic variation.

scholarly journals VATS right posterior segmentectomy with anomalous bronchi and pulmonary vessels: a case report and literature review

2021 ◽  
Author(s):  
Jianbin Zhang ◽  
Yilv Zhu ◽  
Hongwei Li ◽  
Caihua Yu ◽  
Weiwei Min
Keyword(s):  
Computed Tomography ◽  
Case Report ◽  
Rare Case ◽  
Anatomic Variation ◽  
Three Dimensional ◽  
Posterior Segment ◽  
Detailed Model ◽  
Case Presentation ◽  
Pulmonary Vessels ◽  
The Right

Abstract Background: Anatomic variation may increase the difficulty and risk of anatomic segmentectomy. The preoperative three-dimensional computed tomography bronchography and angiography (3D-CTBA) can provide a detailed model of the segmental structure, and contribute to precise and safe segmentectomy. Case presentation: This is a case of anomalous bronchi and pulmonary vessels in the right upper posterior segment (RS2). Under the guidance of 3D-CTBA, anatomic RS2 segmentectomy was performed accurately and safely. The postoperative condition was uneventful. Conclusions: This rare case highlights the importance of 3D-CTBA to guild accurate segmentectomy with anatomic variation.

scholarly journals 48-year-old with Coronavirus Disease 2019

2020 ◽  
Vol 4 (3) ◽  
pp. 464-465
Author(s):  
Holly Gil ◽  
Ryan Finn ◽  
Neha Raukar
Keyword(s):  
Computed Tomography ◽  
Emergency Department ◽  
Respiratory Infection ◽  
Chest Radiograph ◽  
Signs And Symptoms ◽  
Urgent Care ◽  
Shortness Of Breath ◽  
Case Presentation ◽  
Upper Respiratory Infection ◽  
Upper Respiratory

Case Presentation: A 48-year-old male who presented with signs and symptoms suggestive of an upper respiratory infection was seen at an urgent care, he had a negative chest radiograph and was discharged. With no other cases of coronavirus disease 2019 (COVID-19) in the state, the patient presented to the emergency department two days later with worsening shortness of breath. Discussion: There are a variety of findings on both chest radiograph and computed tomography of the chest that suggests COVID-19.

X-ray microtomography

1988 ◽  
Vol 46 ◽  
pp. 998-999
Author(s):  
H.W. Deckman ◽  
B.F. Flannery ◽  
J.H. Dunsmuir ◽  
K.D' Amico
Keyword(s):  
Computed Tomography ◽  
Internal Structure ◽  
Imaging Technique ◽  
Three Dimensional ◽  
Tissue Structure ◽  
Individual Element ◽  
X Ray ◽  
Non Invasive ◽  
Panoramic Imaging ◽  
Three Dimensional Images

We have developed a new X-ray microscope which produces complete three dimensional images of samples. The microscope operates by performing X-ray tomography with unprecedented resolution. Tomography is a non-invasive imaging technique that creates maps of the internal structure of samples from measurement of the attenuation of penetrating radiation. As conventionally practiced in medical Computed Tomography (CT), radiologists produce maps of bone and tissue structure in several planar sections that reveal features with 1mm resolution and 1% contrast. Microtomography extends the capability of CT in several ways. First, the resolution which approaches one micron, is one thousand times higher than that of the medical CT. Second, our approach acquires and analyses the data in a panoramic imaging format that directly produces three-dimensional maps in a series of contiguous stacked planes. Typical maps available today consist of three hundred planar sections each containing 512x512 pixels. Finally, and perhaps of most import scientifically, microtomography using a synchrotron X-ray source, allows us to generate maps of individual element.

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