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Cholesteatoma

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https://www.readbyqxmd.com/read/28634512/diffusion-weighted-imaging-for-the-detection-and-evaluation-of-cholesteatoma
#1
REVIEW
Benjamin Henninger, Christian Kremser
Cholesteatoma is a collection of keratinous debris and stratified squamous epithelium. It is trapped in the middle ear and can lead to bony erosion. The disease is treated surgically often followed by a second-look procedure to check for residual tissue or recurrence. Cholesteatoma has specific signal-intensity characteristics on magnetic resonance imaging with very high signal intensity on diffusion weighted imaging (DWI). Various DWI techniques exist: Echo-planar imaging (EPI)-based and non-EPI-based techniques as well as new approaches like multi-shot EPI DWI...
May 28, 2017: World Journal of Radiology
https://www.readbyqxmd.com/read/28611633/hematogenous-renal-cell-carcinoma-metastasis-in-the-postoperative-temporal-bone
#2
Masaya Konishi, Kensuke Suzuki, Hiroshi Iwai
Metastatic renal cell carcinoma (RCC) involving the temporal bone is a rare entity. It is usually asymptomatic and misdiagnosis as acute otitis media, mastoiditis, and Ramsay-Hunt syndrome in early onset is not uncommon. We report a case of RCC metastasis to the postoperative temporal bone in the middle of molecular targeted therapy. A 60-year-old man presented left facial palsy with severe retro-auricular pain and he also underwent left middle ear surgery for cholesteatoma more than 30 years before and had been aware of discontinuous otorrhea; therefore, initially we speculated that facial palsy was derived from recurrent cholesteatoma or Ramsay-Hunt syndrome...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28607891/cholesteatoma-induced-labyrinthine-fistula-is-aggressiveness-in-removing-disease-justified
#3
Prem Sagar, K Devaraja, Rajeev Kumar, Sumanth Bolu, Suresh C Sharma
Issues of complete disease clearance and hearing preservation in cholesteatoma induced labyrinthine fistula cases has been discussed and updated in this article. Successful disease clearance and hearing preservation in a case of cholesteatoma induced isolated cochlear promontory fistula encouraged us to retrospectively analyse 13 more cases of cholesteatoma induced labyrinthine fistula who presented in emergency service as complicated chronic suppurtive otitis media. Pre-operatively nine patients experienced vertigo, two had profound sensori neural hearing loss and radiology was suggestive of labyrinthine fistula in 12 patients...
June 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/28607883/evaluation-of-requirements-for-staging-the-procedure-of-reconstruction-of-middle-ear-after-canal-wall-down-mastoidectomy
#4
C Ravishankar, R K Datta
Cholesteatoma is a progressive destructive ear disease which can affect any age group. It has been found to be more severe in children and young adults. It erodes the surrounding bone of middle ear, mastoid and ossicles. It causes partial to total deafness, unpleasant smelling discharge, pain, tinnitus, vertigo and facial paralysis. It can even cause meningitis, brain abscess and death. The post-operative outcome of hearing, and the state of the reconstructed middle-ear cavity after concurrent and staged reconstruction of middle ear after canal wall down mastoidectomy was studied in 30 ears with middle-ear cholesteatoma...
June 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/28602066/analysis-of-eustachian-tube-dysfunction-by-dynamic-slow-motion-video-endoscopy-and-eustachian-tube-dysfunction-questionnaire-in-chronic-otitis-media
#5
Won Gue Han, Jun Yoo, Yoon Chan Rah, Jiwon Chang, Gi Jung Im, Jae-Jun Song, Sung Won Chae, Hak Hyun Jung, June Choi
Objectives: Eustachian tube dysfunction has been associated with most cases of middle-ear disease. We aimed to assess the effectiveness of dynamic slow motion video endoscopy (DSVE) as a test of eustachian tube dysfunction. Furthermore, we assessed the correlation of the test with the Valsalva maneuver, the seven-item Eustachian Tube Dysfunction Questionnaire (ETDQ-7), and intraoperative findings of the eustachian tube. Methods: We retrospectively reviewed medical records from April to September 2014 to identify patients who were diagnosed with chronic otitis media (COM) at Korea University Ansan Hospital...
June 6, 2017: Clinical and Experimental Otorhinolaryngology
https://www.readbyqxmd.com/read/28601902/titanium-incus-interposition-ossiculoplasty-audiological-outcomes-and-extrusion-rates
#6
Selcuk Mulazimoglu, Alexander Saxby, Christoph Schlegel, Thomas Linder
This study aimed to evaluate the benefit but also the extrusions, dislocations, and failures of a titanium incus prosthesis along with the long-term audiological outcomes. We prospectively collected data from 139 patients undergoing ossiculoplasty using the Fisch titanium incus prosthesis between 2001 and 2016. Overall, 126 patients with at least 6 months of follow-up (mean 4.5 years, range 6-155 months) were analyzed. Patients were grouped as "extrusion" (n = 9, 7%) if the prosthesis extruded, "failure" (n = 22, 18%) if a reoperation was needed concerning the prosthesis, and "stable" (n = 95, 75%) if the prosthesis remained functional in the middle ear...
June 10, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28599589/expressions-of-trpvs-in-the-cholesteatoma-epithelium
#7
Ba Hung Do, Hiroki Koizumi, Toyoaki Ohbuchi, Rintaro Kawaguchi, Hideaki Suzuki
OBJECTIVE: We have recently proposed a hypothesis that acid leakage through the cholesteatoma epithelium mediates bone resorption in middle ear cholesteatoma. In the present study, we investigated the expressions of transient receptor potential vanilloid (TRPV) channels, which have been shown to play roles in the regulation of epidermal barrier function, in the cholesteatoma epithelium in comparison with the normal skin. METHODS: Cholesteatoma epithelium and postauricular skin were collected from 17 patients with primary acquired middle ear cholesteatoma who underwent tympanomastoidectomy...
June 9, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28594978/association-of-gel-forming-mucins-and-aquaporin-gene-expression-with-hearing-loss-effusion-viscosity-and-inflammation-in-otitis-media-with-effusion
#8
Tina L Samuels, Justin C Yan, Pawjai Khampang, Peter W Dettmar, Alexander MacKinnon, Wenzhou Hong, Nikki Johnston, Blake C Papsin, Robert H Chun, Michael E McCormick, Joseph E Kerschner
Importance: Persistent, viscous middle ear effusion in pediatric otitis media (OM) contributes to increased likelihood of anesthesia and surgery, conductive hearing loss, and subsequent developmental delays. Biomarkers of effusion viscosity and hearing loss have not yet been identified despite the potential that such markers hold for targeted therapy and screening. Objective: To investigate the association of gel-forming mucins and aquaporin 5 (AQP5) gene expression with inflammation, effusion viscosity, and hearing loss in pediatric OM with effusion (OME)...
June 8, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28589110/citelli-s-abscess-following-otitis-media-a-case-report
#9
Anjan-Kumar Sahoo, Chappity Preetam, Dillip-Kumar Samal, Sourav Sarkar
INTRODUCTION: Citelli's abscess is an extratemporal complication of otitis media. It occurs when pus from the mastoid tip trickles down along the posterior belly of the digastric muscle to the occipital and cervical region. It is a very unusual presenting complication of chronic otitis media with no available data in the until now. CASE REPORT: A 10-year-old female was presented to our outpatient department with a 1 month history of hi-grade fever and headache and pain around the left half of the face...
May 2017: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28573817/imaging-of-labyrinthine-fistula-after-repair-with-bone-pate
#10
Jeffrey T Vrabec
OBJECTIVES/HYPOTHESIS: To demonstrate imaging of labyrinthine fistula due to cholesteatoma and illustrate outcome following repair with bone pate. STUDY DESIGN: Retrospective review. METHODS: Patients with labyrinthine fistula due to cholesteatoma were identified, and pre- and postoperative imaging was assessed. Method of repair was recorded. The fistula site was examined for patency and bone density after repair. RESULTS: Twenty-nine fistulae were seen in a cohort of 375 cholesteatoma cases (8%)...
June 2, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28558458/-clinical-characteristics-in-children-with-cleft-palate-associated-with-middle-ear-cholesteatoma
#11
Y Yang, M Chen, J S Hao, W Liu, J Zhang
Objective: To summarize the characteristics of children diagnosed as cleft palate associated with middle ear cholesteatoma. Methods: There were five middle ear cholesteatoma cases who had previously received cleft palate repairment surgery. All of the patients were followed up for 17 to 47 months. Median follow-up time was 31 months. Results: There were three males and two females with three to eleven years old , and the average of age was seven years and ten months. The time of cleft palate repairment surgery was from six months to four years, and the average age was one year and nine months...
May 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28555513/high-mobility-group-box-protein-1-expression-in-inflammatory-diseases-of-the-middle-ear
#12
Luisa Maria Bellussi, Carla Vindigni, Serena Cocca, Marie Aimee Gloria Munezero Butorano, Walter Livi, Giulia Corallo, Desiderio Passali
High-mobility group box 1 (HMGB1) is a nuclear non-histone protein, playing a critical role as a mediator between innate and acquired immunity; when released extracellularly, it coordinates the cellular stress response (under necrosis, bacterial lipopolysaccharide stimulation) and acts as an inflammatory marker and cytokine. The aim of the study was to demonstrate whether HMGB1 is over-expressed in chronic middle-ear pathologies and whether the entity of expression and the localization are correlated with the degree of the inflammatory reaction, thus suggesting that HMGB1 may play a crucial role in chronic inflammatory disorders of the middle ear, as already demonstrated in other airway diseases...
March 1, 2017: International Journal of Immunopathology and Pharmacology
https://www.readbyqxmd.com/read/28553861/endothelial-progenitor-cells-populate-the-stromal-stem-niche-of-tympanum
#13
Mugurel Constantin Rusu, Vasile Sorin Mănoiu, Viorela Maria Popescu, Radu Constantin Ciuluvică
The tympanic membrane (TM) integrity is of utmost integrity for the sense of hearing. Therefore, the intrinsic potential of the TM to regenerate and repair deserves complete characterization. Existing studies brought evidence on the epithelial stem niche of the TM. However, the stromal compartment was not evaluated for harbouring a distinctive stem, or progenitor, niche. We aimed doing this in transmission electron microscopy. We used TMs dissected out from 3 male Oryctolagus cuniculus rabbits. Evidence of stromal quiescent stem cells with was gathered...
May 29, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28543174/endoscopic-transcanal-approach-to-the-middle-ear-for-management-of-pediatric-cholesteatoma
#14
Saied Ghadersohi, John M Carter, Stephen R Hoff
OBJECTIVES: To describe outcomes for endoscopic ear surgery (EES) for pediatric cholesteatoma at a tertiary pediatric hospital. METHODS: Retrospective case series of 65 pediatric cholesteatoma cases in 38 ears. Subgrouping based on cholesteatoma type and EES type. Surgical findings, outcomes, and demographic data were evaluated. RESULTS: Endoscopes were used in 65 pediatric cholesteatoma cases in 38 primary ears (34 patients), followed for an average of 2...
May 23, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28523196/neoplasia-in-cri-du-chat-syndrome-from-italian-and-german-databases
#15
Andrea Guala, Marianna Spunton, Silvia Kalantari, Ingo Kennerknecht, Cesare Danesino
Cri du Chat syndrome (CdC) is a chromosomal abnormality (deletion of short arm of chromosome 5) associated with intellectual disability and typical anatomical abnormalities. Research up to now focuses on the management of the disease during childhood. The longer lifespan of these patients warrants deeper investigations of how and if aging could be affected by the syndrome. We decided to focus on the association of the disease with proliferative disorders. Data on proliferative disorders in a cohort of 321 patients from Italian and German Cri du Chat databases were collected...
2017: Case Reports in Genetics
https://www.readbyqxmd.com/read/28511400/a-case-report-of-a-giant-cholesteatoma
#16
Neelam Sood, Binit Kumar Khandelia, Gitanjali Bugnait
Cholesteatoma is a well demarcated, non-neoplastic, temporal bone cystic lesion with extensive keratinisation. Keratoma and epidermoid cyst are other possibly more accurate names suggested to describe the same. It can be classified as congenital or acquired. Its management is often complicated by its tendency to recidivism/recurrence. Long standing cholesteatomas can be a precursor for squamous cell carcinoma. We hereby present a case of giant cholesteatoma in a 45-year-old female with radiological involvement of the left temporal region, periauricular region and infratemporal fossa with lytic destruction of left middle ear ossicles, mastoid and squamous part of temporal bone with intracranial extension...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28499303/-long-term-follow-up-and-patient-satisfaction-after-tympanoplasty-with-titanium-clip-prothesis
#17
Guido Wolferts, Daniel Schicke, K-Wolfgang Delank
Aim of the present study is to evaluate the long term results of ossiculoplasty using titanium clip prosthesis. A retrospective analysis with prospective follow-up has been done including for all patients who had a Clip-PORP implanted between the years 2002-2013. Following this, audiometric hearing results were measured with clinical examination including otoscopy and quality of life evaluation using Glasgow benefit inventory. 48 patients (51 ears, 29 men, 19 women, average age 44.1 years) received followed up after an average duration of 6...
May 12, 2017: Laryngo- Rhino- Otologie
https://www.readbyqxmd.com/read/28498080/hb-egf-expression-as-a-potential-biomarker-of-acquired-middle-ear-cholesteatoma
#18
Shumin Xie, Xiaoli Wang, Hongmiao Ren, Xiaoyu Liu, Jihao Ren, Wei Liu
CONCLUSIONS: The heparin-binding epidermal growth factor-like growth factor (HB-EGF) plays an essential role in the development and invasiveness of cholesteatoma. This study may help to realize the molecular mechanisms underlying the pathogenesis of cholesteatoma and make HB-EGF a promising target for drug intervention of cholesteatoma. OBJECTIVE: To detect HB-EGF expression in human surgical specimens of acquired middle ear cholesteatoma and analyze its functional role as a regulator of epithelial keratinocytes hyperproliferation...
February 24, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28494066/association-between-middle-ear-cholesteatoma-and-chronic-rhinosinusitis
#19
Chin-Lung Kuo, Yu-Chun Yen, Wei-Pin Chang, An-Suey Shiao
Importance: Chronic rhinosinusitis (CRS) can cause an obstruction of the tubal orifice and thereby compromise ventilation of the middle ear. The resulting negative pressure in the middle ear may, in turn, lead to the formation of an eardrum retraction pocket and subsequent acquired cholesteatoma. This study hypothesizes that CRS may increase the risk of cholesteatoma. Objective: To evaluate the risk of cholesteatoma in patients with CRS. Design, Setting, and Participants: This study used a nationwide, population-based claims database to test the hypothesis that CRS may increase the risk of cholesteatoma...
May 11, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28485292/assessment-and-management-of-retraction-pockets
#20
Cuneyt Alper, Ewa Olszewska
This manuscript intends to review types, pathogenesis, associated risk factors, and potential methods of prevention and treatment of the retraction pockets in adults and children. The importance of retraction pockets (RP) lies in loss of original histological and anatomical structure which is associated with development of ossicular chain erosion, cho¬lesteatoma formation and potentially life threatening complications of cholesteatoma. The trans-mucosal exchange each gas in the middle ear (ME) is towards equalizing its partial pressures with the partial pressure in the environ¬ment...
February 28, 2017: Otolaryngologia Polska
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