Aberrant jugular bulb vein obstructing approach to intracanalicular vestibular schwannoma

1998 ◽  
Vol 112 (8) ◽  
pp. 772-774 ◽  
Author(s):  
Takeshi Tsutsumi ◽  
Atsunobu Tsunoda ◽  
Kumiko Shimamoto ◽  
Atsushi Komatsuzaki
Keyword(s):  
Computed Tomography ◽  
Vestibular Schwannoma ◽  
Unusual Case ◽  
Three Dimensional ◽  
Jugular Bulb ◽  
Embryonic Stage ◽  
Excessive Bleeding ◽  
High Jugular Bulb ◽  
Additional Branch

AbstractIn cases of jugular bulb anomalies, such as a high jugular bulb, troublesome bleeding may occur during surgery. We report an unusual case with a vestibular schwannoma, in which we recognized an additional branch arising from the jugular bulb. Three-dimensional computed tomography (3-D CT) revealed this anomaly beforehand, enabling us to avert excessive bleeding upon resection of the tumour. The abnormal vein was thought to be a remnant of the petrosquamosal sinus in the embryonic stage.

scholarly journals Surgical Management of Vestibular Schwannoma with a High Jugular Bulb via the Anterior Transpetrosal Approach : A Case Report

2019 ◽  
Vol 28 (11) ◽  
pp. 727-732
Author(s):  
Takashi Arai ◽  
Kazutoshi Hashimoto ◽  
Akitsugu Kawashima ◽  
Ayumi Nagahara ◽  
Akikazu Nakamura ◽  
...  
Keyword(s):  
Case Report ◽  
Surgical Management ◽  
Vestibular Schwannoma ◽  
Jugular Bulb ◽  
High Jugular Bulb ◽  
Anterior Transpetrosal Approach

scholarly journals Value of CT and three-dimensional reconstruction revealing specific radiological signs for screening causative high jugular bulb in patients with Menière's disease

2020 ◽  
Author(s):  
Junjiao Hu ◽  
Anquan Peng ◽  
Kai Deng ◽  
Chao Huang ◽  
Qin Wang ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Jugular Bulb ◽  
Type I ◽  
Three Dimensional Reconstruction ◽  
Inferior Margin ◽  
Type Iii ◽  
High Jugular Bulb ◽  
Imaging Results ◽  
Significant Difference ◽  
Dimensional Reconstruction

Abstract Background The aim of the present study was to investigate the pathological features of vestibular aqueduct (VA) related high jugular bulb (HJB) and explore the possible cause-consequence relation between HJB and endolymphatic hydrops (EH), and the potential specific radiological signs for screening causative HJB in MD. Methods High-resolution computed tomography (HRCT) and three-dimensional reconstruction (3DRC) were used to detect the anatomical variables associated with VA and jugular bulb (JB) in hydropic and non-hydropic ears. The presence or absence of EH in the inner ear was determined by gadopentetate dimeglumine-enhanced magnetic resonance imaging. Results JB was classified as: Type 1, no bulb; type 2, below the inferior margin of the posterior semicircular canal (PSCC); type 3, between the inferior margin of the PSCC and the inferior margin of the internal auditory canal (IAC); type 4, above the inferior margin of the IAC. There were no significant differences in the presence of types 1, 2 and 3 JB between two groups. The presence of type 4 JB, average height of the JB and prevalence of the non-visualization of the VA in CT scans showed significant differences between two groups. The morphological pattern between the JB and VA revealing by 3DRC was classified as: Type I, the JB was not in contact with the VA; type II, the JB was in contact with the VA, but the latter was intact without obstruction; type III, the VA was obliterated by HJB encroachment. There were no significant differences in the presence of type I and II between two groups. Type III was identified in 5 hydropic ears but no non-hydropic ears, with a significant difference observed between the two groups.Conclusion The present results showed that JB height and non-visualization of the VA on Pöschl's plane could render patients susceptible to the development of EH. A jugular bulb reaching above the inferior margin of the IAC (type 4 JB) could obstruct VA, resulting in EH in a few isolated patients with MD. VA obliteration revealed by 3DRC, as a specific radiological sign, may have the potential for screening causative HJB in MD.

scholarly journals Value of CT and three-dimensional reconstruction revealing specific radiological signs for screening causative high jugular bulb in patients with Menière's disease

2020 ◽  
Author(s):  
Junjiao Hu ◽  
Anquan Peng ◽  
Kai Deng ◽  
Chao Huang ◽  
Qin Wang ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Jugular Bulb ◽  
Meniere’S Disease ◽  
Ménière’S Disease ◽  
Type I ◽  
Three Dimensional Reconstruction ◽  
Inferior Margin ◽  
Type Iii ◽  
High Jugular Bulb ◽  
Dimensional Reconstruction

Abstract BackgroundThe aim of the present study was to investigate the pathological features of vestibular aqueduct (VA) related high jugular bulb (HJB) and explore the possible cause-consequence relation between HJB and endolymphatic hydrops (EH), and the potential specific radiological signs for screening causative HJB in Meniere’s disease (MD).MethodsHigh-resolution computed tomography (HRCT) and three-dimensional reconstruction (3DRC) were used to detect the anatomical variables associated with VA and jugular bulb (JB) in hydropic and non-hydropic ears. The presence or absence of EH in the inner ear was determined by gadopentetate dimeglumine-enhanced magnetic resonance imaging. The presence of different types of HJB, the anatomical variables of the VA and JB and the three types of anatomical relationship between the VA and HJB were compared between the hydropic and non-hydropic ears using the χ2 or Fisher’s exact tests. P<0.05 was considered to indicate a statistically significant difference.ResultsJB was classified as: Type 1, no bulb; type 2, below the inferior margin of the posterior semicircular canal (PSCC); type 3, between the inferior margin of the PSCC and the inferior margin of the internal auditory canal (IAC); type 4, above the inferior margin of the IAC. There were no significant differences in the presence of types 1, 2 and 3 JB between two groups. The presence of type 4 JB, average height of the JB and prevalence of the non-visualization of the VA in CT scans showed significant differences between two groups. The morphological pattern between the JB and VA revealing by 3DRC was classified as: Type I, the JB was not in contact with the VA; type II, the JB was in contact with the VA, but the latter was intact without obstruction; type III, the VA was obliterated by HJB encroachment. There were no significant differences in the presence of type I and II between two groups. Type III was identified in 5 hydropic ears but no non-hydropic ears, with a significant difference observed between the two groups.ConclusionThe present results showed that JB height and non-visualization of the VA on Pöschl's plane could render patients susceptible to the development of EH. A jugular bulb reaching above the inferior margin of the IAC (type 4 JB) could obstruct VA, resulting in EH in a few isolated patients with MD. VA obliteration revealed by 3DRC, as a specific radiological sign, may have the potential for screening causative HJB in MD.

Radiologic Analysis of High Jugular Bulb by Computed Tomography

2012 ◽  
Vol 33 (7) ◽  
pp. 1283-1287 ◽  
Author(s):  
Chang-Ki Woo ◽  
Chan-Eun Wie ◽  
Sung-Hwan Park ◽  
Soo-Keun Kong ◽  
Il-Woo Lee ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Jugular Bulb ◽  
High Jugular Bulb

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.

A Giant Coronary Sinus Aneurysm with Secondary Vena Cava Aneurysms

2016 ◽  
Vol 19 (1) ◽  
pp. 028
Author(s):  
Shengjun Wu ◽  
Peng Teng ◽  
Yiming Ni ◽  
Renyuan Li
Keyword(s):  
Computed Tomography ◽  
Heart Transplantation ◽  
Coronary Sinus ◽  
Unusual Case ◽  
Superior Vena ◽  
Vena Cava ◽  
Final Diagnosis ◽  
Rare Entity ◽  
First Case ◽  
Enhanced Computed Tomography

Coronary sinus aneurysm (CSA) is an extremely rare entity. Herein, we present an unusual case of an 18-year-old symptomatic female patient with a giant CSA. Secondary vena cava aneurysms were also manifested. The final diagnosis was confirmed by enhanced computed tomography (CT) and cardiac catheterization. As far as we know, it is the first case that such a giant CSA coexists with secondary vena cava aneurysms. Considering the complexity of postoperative reconstruction, we believe that heart transplantation may be the optimal way for treatment. The patient received anticoagulant due to the superior vena cava (SVC) thrombosis while waiting for a donor.

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