scholarly journals Isolated Congenital Mastoid Cholesteatoma with no Involvement of Aditus Ad Antrum and Middle Ear

2021 ◽  
Vol 14 ◽  
pp. 117954762110140
Author(s):  
Pace Annalisa ◽  
Iannella Giannicola ◽  
Rossetti Valeria ◽  
Messineo Daniela ◽  
Visconti Irene Claudia ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Middle Ear ◽  
Mastoid Process ◽  
Reference List ◽  
Digastric Muscle ◽  
Diagnostic Features ◽  
Imaging Evaluation ◽  
Stylomastoid Foramen ◽  
Congenital Origin ◽  
Mastoid Region

Cholesteatoma is a non-neoplastic, keratinized squamous epithelial lesion that affects the temporal bone. The middle ear is the most frequent, while the isolated cholesteatoma of the mastoid is rare. The aim of this study was to describe a rare case of isolated mastoid cholesteatoma with no involvement of aditus ad antrum and middle ear including a literature review of the topic. This case report describes the case of a 58 years old female with a cholesteatoma isolated in the mastoid region, evidenced by imaging (computer tomography and magnetic resonance). A mastoidectomy was performed: mastoid process was completely involved, but antrum was not reached. Moreover, it reached the soft tissue of stylomastoid foramen as well as the posterior belly of the digastric muscle. In the literature few articles described cases of cholesteatoma isolated in the mastoid region. Research was conducted using PubMed and reference list and there were considered only reports about cholesteatoma exclusively located in the mastoid process without involvement of antrum or middle ear. Fourteen articles were included in this review, with a total number of 23 cases of cholesteatoma isolated in the mastoid region. All papers analyzed reported the cases of isolated mastoid cholesteatoma that presented a congenital origin. Its diagnosis is difficult, therefore, imaging evaluation is mandatory and surgery is the treatment of choice. Mastoid cholesteatomas without involvement of aditus ad antrum and middle ear are rare and only 23 cases are reported in literature. Our case is in line with all clinical and diagnostic features of this rare disease, but it is the only one that evidenced an exposure of the soft tissue of stylomastoid foramen as well as the posterior belly of the digastric muscle. The treatment of choice was the surgical one, avoiding damaging of important anatomo-functional structure.

Congenital cholesteatoma of the mastoid region

2000 ◽  
Vol 114 (10) ◽  
pp. 779-780 ◽  
Author(s):  
Sebahattin Cüreoglu ◽  
Üstün Osma ◽  
M. Faruk Oktay ◽  
Hasan Nazaroglu ◽  
Faruk Meric ◽  
...  
Keyword(s):  
Clinical Examination ◽  
Middle Ear ◽  
External Auditory Canal ◽  
Mastoid Process ◽  
Petrous Apex ◽  
Radiological Evaluation ◽  
Common Site ◽  
Congenital Cholesteatoma ◽  
Mastoid Region

Congenital cholesteatoma may arise in the petrous apex, mastoid, middle ear, or external auditory canal. The least common site being the mastoid process. We present one case of primary mastoid cholesteatoma confirmed by clinical examination, surgical findings and radiological evaluation.

scholarly journals Facial Nerve Reconstruction with Free Vascularized Composite Nerve Flap from Intrapetrous Portion to Terminal Branches—Case Report

2021 ◽  
Author(s):  
Pedro C. Cavadas ◽  
Magdalena Baklinska
Keyword(s):  
Case Report ◽  
Soft Tissue ◽  
Facial Nerve ◽  
Free Flap ◽  
Nerve Reconstruction ◽  
Nerve Stump ◽  
Stylomastoid Foramen ◽  
Facial Nerve Reconstruction ◽  
Delayed Reconstruction

AbstractThe case presented here is a delayed reconstruction of a facial nerve defect after radical parotidectomy without a useful nerve stump at the stylomastoid foramen. A composite free flap was used to reconnect the nerve’s intrapetrous portion to the peripheral branches and reconstruct the soft-tissue deficit.

scholarly journals Micro-CT imaging of Thiel-embalmed and iodine-stained human temporal bone for 3D modeling

2021 ◽  
Vol 50 (1) ◽  
Author(s):  
Sebastian Halm ◽  
David Haberthür ◽  
Elisabeth Eppler ◽  
Valentin Djonov ◽  
Andreas Arnold
Keyword(s):  
Soft Tissue ◽  
Temporal Bone ◽  
Middle Ear ◽  
3D Modeling ◽  
Soft Tissues ◽  
Ct Imaging ◽  
Micro Ct ◽  
Data Set ◽  
Iodine Staining ◽  
Tissue Structures

Abstract Introduction This pilot study explores whether a human Thiel-embalmed temporal bone is suitable for generating an accurate and complete data set with micro-computed tomography (micro-CT) and whether solid iodine-staining improves visualization and facilitates segmentation of middle ear structures. Methods A temporal bone was used to verify the accuracy of the imaging by first digitally measuring the stapes on the tomography images and then physically under the microscope after removal from the temporal bone. All measurements were compared with literature values. The contralateral temporal bone was used to evaluate segmentation and three-dimensional (3D) modeling after iodine staining and micro-CT scanning. Results The digital and physical stapes measurements differed by 0.01–0.17 mm or 1–19%, respectively, but correlated well with the literature values. Soft tissue structures were visible in the unstained scan. However, iodine staining increased the contrast-to-noise ratio by a factor of 3.7 on average. The 3D model depicts all ossicles and soft tissue structures in detail, including the chorda tympani, which was not visible in the unstained scan. Conclusions Micro-CT imaging of a Thiel-embalmed temporal bone accurately represented the entire anatomy. Iodine staining considerably increased the contrast of soft tissues, simplified segmentation and enabled detailed 3D modeling of the middle ear.

scholarly journals Soft tissue attenuation in middle ear on HRCT: Pictorial review

2012 ◽  
Vol 22 (4) ◽  
pp. 298 ◽  
Author(s):  
Arangasamy Anbarasu ◽  
Kiruthika Chandrasekaran ◽  
Sivasubramanian Balakrishnan
Keyword(s):  
Soft Tissue ◽  
Middle Ear ◽  
Pictorial Review ◽  
Soft Tissue Attenuation

Improved middle-ear soft-tissue visualization using synchrotron radiation phase-contrast imaging

2017 ◽  
Vol 354 ◽  
pp. 1-8 ◽  
Author(s):  
Mai Elfarnawany ◽  
Seyed Alireza Rohani ◽  
Soroush Ghomashchi ◽  
Daniel G. Allen ◽  
Ning Zhu ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Soft Tissue ◽  
Middle Ear ◽  
Phase Contrast ◽  
Phase Contrast Imaging ◽  
Contrast Imaging ◽  
Radiation Phase

scholarly journals Imaging of Bone Sarcomas and Soft-Tissue Sarcomas

2021 ◽  
Author(s):  
Jasminka Igrec ◽  
Michael H. Fuchsjäger
Keyword(s):  
Soft Tissue ◽  
Soft Tissue Sarcomas ◽  
Bone Cancer ◽  
Bone Sarcoma ◽  
Daily Practice ◽  
Imaging Evaluation ◽  
Key Points ◽  
Bone Sarcomas ◽  
Publication Period ◽  
Ct And Mri

Background In the diagnosis of bone and soft-tissue sarcomas, the continuous advancement of various imaging modalities has improved the detection of small lesions, surgical planning, assessment of chemotherapeutic effects, and, importantly, guidance for surgery or biopsy. Method This review was composed based on a PubMed literature search for the terms “bone sarcoma,” “bone cancer” and “soft tissue sarcoma,” “imaging,” “magnetic resonance imaging”, “computed tomography”, “ultrasound”, “radiography”, and “radiomics” covering the publication period 2005–2020. Results and Conclusion As discussed in this review, radiography, ultrasound, CT, and MRI all play key roles in the imaging evaluation of bone and soft-tissue sarcomas. In daily practice, advanced MRI techniques complement standard MRI but remain underused, as they are considered time-consuming, technically challenging, and not reliable enough to replace biopsy and histology. PET/MRI and radiomics have shown promise regarding the imaging of sarcomas in the future. Key Points:  Citation Format

Ataxia and Hearing Loss Secondary to Perilymphatic Fistula

PEDIATRICS ◽  
1978 ◽  
Vol 61 (2) ◽  
pp. 238-241
Author(s):  
Gerald B. Healy ◽  
Jules M. Friedman ◽  
Joseph DiTroia
Keyword(s):  
Hearing Loss ◽  
Soft Tissue ◽  
Head Trauma ◽  
Middle Ear ◽  
Vestibular System ◽  
Perilymphatic Fistula ◽  
Labyrinthine Fistula ◽  
First Case ◽  
The Absolute ◽  
Physical Findings

Ataxia is rarely attributed to lesions of the peripheral vestibular system. In 1973, the first case of ataxia and hearing loss secondary to a labyrinthine fistula was reported. Until now, this syndrome has not been reported in patients under the age of 10 years. A case is presented of a 5-year-old boy with symptoms of ataxia and hearing loss as well as vertigo and tinnitus after head trauma. Three physical findings appear to be most characterisitic of patients with perilymphatic fistulas: a positive fistula response, positive positional testing with the involved ear down, and evidence of vestibular ataxia when testing station and gait. The absolute diagnosis of perilymphatic fistula can only be established by exploration of the middle ear space. If a fistula is found, it may be sealed with soft tissue and, if this fails, actual stapedectomy may be required.

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