scholarly journals Report of an Otic Capsule Disrupting Fracture of the Temporal Bone: Visualization of Pneumolabyrinth and Functional Assessment

Cureus ◽  
2021 ◽  
Author(s):  
Dávid Molnár ◽  
Marléne Mező ◽  
Zita Vaska ◽  
Zsuzsanna Sevecsek ◽  
Frigyes Helfferich
Keyword(s):  
Temporal Bone ◽  
Functional Assessment ◽  
Otic Capsule

scholarly journals On the Importance of Proper Window and Level Settings in Temporal Bone CT Imaging

2020 ◽  
Vol 35 (2) ◽  
pp. 51
Author(s):  
Nathaniel Yang
Keyword(s):  
Temporal Bone ◽  
Ct Imaging ◽  
Otic Capsule ◽  
Bone Imaging ◽  
Bone Window ◽  
Temporal Bone Ct ◽  
Temporal Bone Imaging ◽  
Exposure Setting

During a discussion on temporal bone imaging, a group of resident trainees in otolaryngology were asked to corroborate the finding of a fracture in set of images that were supposed to be representative of a fracture involving the otic capsule.1 (Figure 1) Their comments included the following statements:“The image still does not clearly identify the fracture. It would have been better if the images were set to the optimal bone window configuration...” “The windowing must be of concern as well. The exposure setting for the non-magnified view is different from the magnified ones. One must observe consistent windowing in order to assess the fractures more accurately.” “...the images which demonstrate a closer look on the otic capsule areas are not rendered in the temporal bone window which makes it difficult to assess.”“...aside from lack of standard windowing...”

Temporal Bone Fractures: Otic Capsule Sparing versus Otic Capsule Violating Clinical and Radiographic Considerations

1999 ◽  
Vol 47 (6) ◽  
pp. 1079 ◽  
Author(s):  
Ravinder Dahiya ◽  
Jeanne D. Keller ◽  
N. Scott Litofsky ◽  
Paul E. Bankey ◽  
Lawrence J. Bonassar ◽  
...  
Keyword(s):  
Temporal Bone ◽  
Bone Fractures ◽  
Otic Capsule

A Systematic Review of Cochlear Implantation in Temporal Bone Fractures and the Significance of Otic Capsule Involvement

2020 ◽  
Vol 41 (10) ◽  
pp. 1309-1315
Author(s):  
Brandon Cowan ◽  
Sandra Oska ◽  
Khashayar Arianpour ◽  
Peter F. Svider ◽  
Dennis Bojrab ◽  
...  
Keyword(s):  
Systematic Review ◽  
Temporal Bone ◽  
Cochlear Implantation ◽  
Bone Fractures ◽  
Otic Capsule

Case of bilateral pneumolabyrinth presenting as sudden, bilateral deafness, without temporal bone fracture, after a fall

2012 ◽  
Vol 126 (7) ◽  
pp. 717-720 ◽  
Author(s):  
E J Lee ◽  
Y S Yang ◽  
Y J Yoon
Keyword(s):  
Temporal Bone ◽  
Bone Fracture ◽  
Ossicular Chain ◽  
Otic Capsule ◽  
Neurological Manifestations ◽  
Soft Tissue Density ◽  
Temporal Bone Fracture ◽  
Uncommon Condition ◽  
Bilateral Deafness ◽  
Transverse Fractures

AbstractObjective:We report a case of bilateral pneumolabyrinth presenting as sudden, bilateral deafness, without temporal bone fracture, after a fall.Case report:A 49-year-old man presented with sudden, bilateral deafness and whirling vertigo, without any other neurological manifestations. Temporal bone computed tomography clearly demonstrated the presence of air in the vestibule and cochlea on both sides. However, there was no definite fracture line, ossicular chain anomaly or soft tissue density in the temporal bone or middle-ear cavity. The patient was treated conservatively. Unfortunately, there was no improvement in his hearing.Conclusion:Pneumolabyrinth is an uncommon condition in which air is present in the vestibule or cochlea. It is rarely found, even with fractures violating the otic capsule or with transverse fractures of the temporal bone. In addition, its bilateral occurrence is extremely rare. In this article, we describe a case of bilateral pneumolabyrinth presenting as sudden, bilateral deafness, without temporal bone fracture, an occurrence which has not previously been reported.

scholarly journals Cochlear Implantation after Bilateral Otic Capsule-Violating Temporal Bone Fractures

2017 ◽  
Vol 28 (1) ◽  
pp. 90-93
Author(s):  
Sung-Won Choi ◽  
Se-Joon Oh ◽  
Soo-Keun Kong ◽  
Eui-Kyung Goh
Keyword(s):  
Temporal Bone ◽  
Cochlear Implantation ◽  
Bone Fractures ◽  
Otic Capsule

scholarly journals On the Representative CT Image of an Otic-Disrupting Fracture

2020 ◽  
Vol 35 (1) ◽  
pp. 80
Author(s):  
Nathaniel Yang
Keyword(s):  
Temporal Bone ◽  
Semicircular Canals ◽  
Ossicular Chain ◽  
Neck Surgery ◽  
Cell System ◽  
Fracture Line ◽  
Otic Capsule ◽  
Data Set ◽  
Temporal Bone Fracture ◽  
Visual Presence

Dear Editor: In the article entitled “Facial Paralysis in Longitudinal versus Oblique and Otic-Sparing versus Non Otic-Sparing Temporal Bone Fracture” published in the Vol 34 No 2 issue of the Philippine Journal of Otolaryngology Head and Neck Surgery, the authors included an image (Figure 4) that was representative of an otic-disrupting fracture.  The arrow clearly shows the fracture line running through the mastoid air cell system nearly parallel to the posterior external auditory canal wall and ending just posterior to the ossicular chain. However, the fracture line does not unequivocally appear to proceed medially towards the otic capsule, which is the densest portion of the temporal bone that surrounds the osseous labyrinth, and includes the cochlea, vestibule and semicircular canals. The otic capsule likewise is located within the petrous portion of the temporal bone.1 The otic capsule lies within the oval ring in the smaller figure above which is an enlarged image of the original figure in the article. This issue is relevant because the authors are classifying subjects according to the visual presence of a fracture that may or may not involve the otic capsule. Misidentification of the type of fracture in a representative image raises the question of a systematic misidentification in the entire data set, thus rendering the results of the study invalid.

Clinical features and radiological evaluation of otic capsule sparing temporal bone fractures

2017 ◽  
Vol 131 (3) ◽  
pp. 209-214 ◽  
Author(s):  
S W Song ◽  
B C Jun ◽  
H Kim
Keyword(s):  
Hearing Loss ◽  
Temporal Bone ◽  
Facial Paralysis ◽  
Bone Fractures ◽  
Regional Analysis ◽  
Pure Tone Audiometry ◽  
Type I ◽  
Otic Capsule ◽  
Type Iv ◽  
Temporal Bones

AbstractObjective:To evaluate the clinical and radiological aspects of otic capsule sparing temporal bone fractures.Methods:Using medical records, 188 temporal bones of 173 patients with otic capsule sparing temporal bone fractures were evaluated. Otoscopic findings and symptoms, facial paralysis, and hearing loss were assessed.Results:Using regional analysis, 7 fractures were classified as type I, 85 as type II, 169 as type III and 114 as type IV. Fourteen of the 17 facial paralysis cases improved to House–Brackmann grade II or lower at an average of 57.6 days after the initial evaluation. Thirty-one patients underwent initial and follow-up pure tone audiometry examinations. The air–bone gap closed significantly from 27.2 dB at an average of 21.8 days post-trauma to 19.6 dB at an average of 79.9 days post-trauma, without the need for surgical intervention.Conclusion:Initial conservative treatment for facial paralysis or conductive hearing loss is possible in otic capsule sparing fracture cases after careful evaluation of the patient.

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