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Cholesteatoma mri

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https://www.readbyqxmd.com/read/29429175/-middle-ear-teratoma-in-infant-report-of-three-cases-and-review-of-the-literatures
#1
Z Peng, Z X Wang, J Xie, L E Wang, Y Liu, S S Gong
Objective: To summarize the clinical characteristics and therapeutic experiences of the middle ear teratoma in infants. Methods: Three cases of middle ear teratoma, from 2012-2015 in Beijing Friendship Hospital were analyzed. Results: The three cases all developed slowly and presented unilateral otorrhea and hearing loss. Otoscopy showed the granulation tissue in the external ear canal. Audiological changes varied according to the degree of severity. Imaging features showed the pocket-like occupancy lesions in the Eustachian tube area...
February 7, 2018: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/29353560/does-non-echo-planar-diffusion-weighted-magnetic-resonance-imaging-have-a-role-in-assisting-the-clinical-diagnosis-of-cholesteatoma-in-selected-cases
#2
R Nash, R K Lingam, D Chandrasekharan, A Singh
OBJECTIVE: To determine the diagnostic performance of diffusion-weighted magnetic resonance imaging in the assessment of patients with suspected, but not clinically evident, cholesteatoma. METHODS: A retrospective analysis of a prospectively collected database of non-echo-planar diffusion-weighted magnetic resonance imaging studies (using a half-Fourier single-shot turbo-spin echo sequence) was conducted. Clinical records were retrospectively reviewed to determine indications for imaging and operative findings...
January 22, 2018: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/29313370/bilateral-ossicular-head-dehiscence-into-the-middle-cranial-fossa
#3
Sameer A Alvi, Joel W Jones, Jim Lin
OBJECTIVES: To describe a unique case of bilateral dehiscence of the malleus and incus heads into the middle fossa making contact with the temporal lobes, along with its clinical implications. METHODS: An analysis of a patient case and review of pertinent literature were performed. RESULTS: A patient with a history of right-sided mastoidectomy for cholesteatoma was evaluated for persistent conductive hearing loss. On computed tomography (CT) and magnetic resonance imaging (MRI), the patient had a complete dehiscence of the tegmen tympani on the right, with ossicular heads being located above the floor of the middle cranial fossa...
January 1, 2018: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/29158862/-epidermoid-cyst-in-the-sella-turcica-about-a-case
#4
Ghizlane El Mghari, Bouchra Rafiq, Nawal El Ansari
Epidermoid cyst (EC) or cholesteatoma is a benign tumor, often of congenital origin, occurring in the sub-arachnoidian spaces. Its treatment is based on surgery. We report the case of a 38 year-old patient presenting with progressive intracranial hypertension syndrome associated with anterior pituitary insufficiency signs of the corticotropic, thyrotropic, gonadotropic axis occurring 1 year before. Brain MRI showed a craniopharyngioma. Anatomopathologic evaluation of the specimen showed epidermoid cyst.
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29097033/-the-tumors-of-the-ear
#5
X Dubernard, J-C Kleiber, E Brenet, M-A Louges, Y Veleine, M Labrousse, M Makeieff, A Bazin, A Chays
Any cutaneous lesion of the outer ear must be managed jointly by a dermatologist and an ENT, regardless of the age of the patient. The presence of a malignant cutaneous carcinoma (Squamous cell carcinoma or melanoma) of the pavilion requires a minimum extension assessment by a cervical ultrasound, CT-scan and MRI will be prescribed according to the degree of infiltration and the presence of clinics signs (lymphadenopathy, facial paralysis, cognitive impairment). A polyp of the external auditory meatus must be systematically biopsied in consultation and, if necessary, in the operating room with fresh anatomopathological analysis...
October 30, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/29084089/value-of-t1-weighted-magnetic-resonance-imaging-in-cholesteatoma-detection
#6
Atsushi Fukuda, Shinya Morita, Taisuke Harada, Keishi Fujiwara, Kimiko Hoshino, Yuji Nakamaru, Akihiro Homma
OBJECTIVE: To reveal the usefulness of T1-weighted (T1W) imaging on diagnostic magnetic resonance (MR) imaging for cholesteatoma. STUDY DESIGN: A retrospective case review. SETTING: Tertiary referral center. PATIENTS: Fifty-three patients (57 ears) suspected to have cholesteatomas and treated (6-82 yr of age). INTERVENTION: Preoperative MR imaging, including non-echo planar (non-EP) diffusion-weighted (DW) and T1W imaging...
December 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29056463/a-high-jugular-bulb-and-poor-development-of-perivestibular-aqueductal-air-cells-are-not-the-cause-of-endolymphatic-hydrops-in-patients-with-m%C3%A3-ni%C3%A3-re-s-disease
#7
Ryohei Oya, Takao Imai, Takashi Sato, Atsuhiko Uno, Yoshiyuki Watanabe, Suzuyo Okazaki, Yumi Ohta, Tadashi Kitahara, Arata Horii, Hidenori Inohara
OBJECTIVE: The presence of endolymphatic hydrops in the inner ear, which can be detected with gadolinium-enhanced magnetic resonance imaging (Gd-MRI), is widely recognized as the main pathological cause of Ménière's disease (MD). However, the precise mechanisms underlying the development of endolymphatic hydrops remains unclear. One hypothesis proposes a relationship between the presence of a high jugular bulb (HJB) and MD, which disrupts the vestibular aqueduct leading to the development of endolymphatic hydrops...
October 19, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28969854/mri-in-otology-applications-in-cholesteatoma-and-m%C3%A3-ni%C3%A3-re-s-disease
#8
REVIEW
R K Lingam, S E J Connor, J W Casselman, T Beale
Imaging of middle-ear cholesteatoma with diffusion-weighted imaging (DWI) magnetic resonance imaging (MRI), and inner-ear endolymphatic hydrops (in Ménière's disease) with post-gadolinium high-resolution MRI, are reviewed. DWI MRI provides for a more specific diagnosis of tympano-mastoid cholesteatoma. There is an established and increasing role of DWI MRI in detecting both primary and postoperative cholesteatoma, localising disease, and planning surgery. The contemporary diagnostic accuracy of DWI is reviewed, pitfalls in interpretation are described, and potential future developments are highlighted...
January 2018: Clinical Radiology
https://www.readbyqxmd.com/read/28686376/-otoscopic-pitfall-the-congenital-cholesteatoma
#9
Karma Lambercy, Pauline Vinckenbosch, Céline Richard
The congenital cholesteatoma is a rare benign tumor whose diagnosis is mainly made during childhood. Otoscopic examination shows a white retrotympanic collection with or without hearing loss. In case of a late diagnosis, the disease will spread to the surrounding structures, leading to ossicules destruction, facial palsy, sensorineural hearing loss and vestibular dysfunction. Surgery is the therapeutic gold-standard, with different techniques chosen based on the cholesteatoma's extension. Patient should benefit from a long term medical and radiological (MRI) follow-up...
October 5, 2016: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28634512/diffusion-weighted-imaging-for-the-detection-and-evaluation-of-cholesteatoma
#10
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/28449168/mri-sequences-in-head-neck-radiology-state-of-the-art
#11
REVIEW
Gerlig Widmann, Benjamin Henninger, Christian Kremser, Werner Jaschke
Background Magnetic resonance imaging (MRI) has become an essential imaging modality for the evaluation of head & neck pathologies. However, the diagnostic power of MRI is strongly related to the appropriate selection and interpretation of imaging protocols and sequences. The aim of this article is to review state-of-the-art sequences for the clinical routine in head & neck MRI and to describe the evidence for which medical question these sequences and techniques are useful. Method Literature review of state-of-the-art sequences in head & neck MRI...
May 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28377947/the-accuracy-and-sensitivity-of-diffusion-weighted-magnetic-resonance-imaging-with-apparent-diffusion-coefficients-in-diagnosis-of-recurrent-cholesteatoma
#12
Nasr Mohamed M Osman, Ahmed Abdel Rahman, Moustafa Talaat Abdel Hakim Ali
OBJECTIVE: To evaluate the accuracy and sensitivity of diffusion-weighted magnetic resonance imaging with ADC value combined with MDCT in evaluating recurrent cholesteatoma. PATIENTS: Thirty patients (20 females and 10 males), their age ranged from 10 to 40years, had undergone a tympanomastoid surgery for a cholesteatoma of the middle ear underwent MDCT and MR DWI examination before second- or third-look surgery from May 2015 to October 2016. RESULTS: CT showed partial opacification of the tympanomastoid cavity in 10 ears and complete opacification in 21 ears...
2017: European Journal of Radiology Open
https://www.readbyqxmd.com/read/28333776/transcanal-endoscopic-ear-surgery-for-middle-ear-cholesteatoma
#13
Eran Glikson, Ruth Yousovich, Jobran Mansour, Michael Wolf, Lela Migirov, Yisgav Shapira
OBJECTIVE: To evaluate the clinical parameters, outcomes, and complications of transcanal endoscopic ear surgeries for middle ear cholesteatoma. STUDY DESIGN: Retrospective study. SETTING: Tertiary university-affiliated medical center. PATIENTS: Adult patients (age >18) who underwent transcanal endoscopic ear surgeries for cholesteatoma, between March 2009 and March 2015. INTERVENTION: Transcanal endoscopic surgery was indicated when the cholesteatoma did not extend posterior to the anterior limb of the lateral semicircular canal...
June 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28288477/intraoperative-bleeding-and-the-risk-of-residual-cholesteatoma-a-multivariate-analysis
#14
Gavin J le Nobel, Sharon L Cushing, Blake C Papsin, Adrian L James
OBJECTIVE: Residual cholesteatoma most frequently occurs where visualization and surgical access are restricted by anatomic constraints. Other factors that compromise surgical field visualization might also increase rates of residual cholesteatoma. We evaluated whether impaired surgical field clarity from bleeding increases rates of residual cholesteatoma. STUDY DESIGN: Prospective cohort study. SETTING: Tertiary care hospital. PATIENTS: Consecutive series of children having intact canal wall surgery for cholesteatoma...
April 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28125327/mastoid-obliteration-with-s53p4-bioactive-glass-in-cholesteatoma-surgery
#15
Pieter D de Veij Mestdagh, David R Colnot, Pepijn A Borggreven, Claudia C Orelio, Jasper J Quak
CONCLUSION: Evaluation of the follow-up of 67 patients shows that S53P4 bioactive glass (BAG) granules are safe and effective as obliteration material in cholesteatoma surgery. OBJECTIVES: To investigate the safety and efficacy of mastoid obliteration using S53P4 BAG in cholesteatoma surgery. Clinical outcomes were infection control (Merchant's grading), cholesteatoma recidivism, and audiometric performance. METHODS: Retrospective follow-up study at the Diakonessenhuis, Utrecht, the Netherlands...
July 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27921171/computed-tomography-and-magnetic-resonance-fusion-imaging-in-cholesteatoma-preoperative-assessment
#16
Agustín Campos, Federico Mata, Rosa Reboll, María Luisa Peris, Jorge Basterra
The purpose of this study is to describe a method for developing fusion imaging for the preoperative evaluation of cholesteatoma. In 33 patients diagnosed with cholesteatoma, a high-resolution temporal bone computed tomography (CT) scan without intravenous contrast and propeller diffusion-weighted magnetic resonance imaging (MRI) were performed. Both studies were then sent to the BrainLAB work station, where the images were fused to obtain a morphological and color map. Intraoperative findings coincided with fusion CT-MRI imaging in all but two patients...
March 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27773598/accuracy-of-conventional-mri-for-preoperative-diagnosis-of-intracranial-tumors-a-retrospective-cohort-study-of-762-cases
#17
Peng-Fei Yan, Ling Yan, Zhen Zhang, Adnan Salim, Lei Wang, Ting-Ting Hu, Hong-Yang Zhao
BACKGROUND: Conventional magnetic resonance imaging (MRI) is considered a valuable tool for preoperative diagnosis of intracranial tumors. We assessed its accuracy in the diagnosis of intracranial tumors in usual clinical practice. MATERIALS AND METHODS: MRI reports of 762 patients who had undergone conventional brain MRI prior to surgery were retrospectively reviewed. A 4-grade scoring system was devised to establish diagnostic agreement. Each tumor type was compared with the corresponding pathological diagnoses by dichotomization...
December 2016: International Journal of Surgery
https://www.readbyqxmd.com/read/27761737/middle-ear-adenoma-with-neuroendocrine-differentiation-a%C3%A2-pediatric-case-report
#18
Elisabeth Sterrer, Franz Windisch, Kurt Frey, Klaus Rettensteiner, Benjamin Loader
BACKGROUND: Middle ear adenoma with neuroendocrine differentiation (MEA-ND), also known as carcinoid tumor of the middle ear, is an extremely rare neoplasm, especially when located within the tympanic cavity. To the best of our knowledge, this represents the first pediatric case of a MEA-ND described in Europe. Excluding the present case, only three other pediatric cases of this disease have been published globally. CASE REPORT: We report on a 15-year-old female patient who presented with conductive hearing loss of the right ear...
March 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/27755452/monitoring-progression-of-12-cases-of-non-operated-middle-ear-cholesteatoma-with-non-echoplanar-diffusion-weighted-magnetic-resonance-imaging-our-experience
#19
Phui Yee Wong, Ravi K Lingam, Surojit Pal, Pushpa Khatri, Robert Nash, Arvind Singh
AIM: The aim of this study is to gain insight into the disease progression and behavior of primary cholesteatoma in a cohort of patients who did not have surgery using non-echoplanar diffusion-weighted magnetic resonance imaging (DW MRI) serial monitoring. METHODS: Retrospective longitudinal observational study of 12 cases of middle ear cleft cholesteatoma diagnosed between 2009 and 2014 where surgery was not performed for various reasons. All cases were monitored radiologically with non-echoplanar half-Fourier acquisition single-shot turbo spin-echo diffusion weighted imaging annually for a median period of 23 months (between 11 and 45 mo) to evaluate for changes in disease volume and direction of growth...
December 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27729145/postoperative-diffusion-weighted-mri-and-preoperative-ct-scan-fusion-for-residual-cholesteatoma-localization
#20
Musaed Alzahrani, Rami Alhazmi, Manon Bélair, Issam Saliba
OBJECTIVE: To evaluate the ability of preoperative mastoid high resolution Computerized tomography (CT Scan) fusion with the postoperative diffusion weighted magnetic resonance imaging (Non-EPI DWI) to accurately localize the residual cholesteatoma thus sparing an unnecessary postoperative CT scan radiation. PATIENTS AND METHODS: this is a prospective study performed in our tertiary care center. We followed up prospectively a consecutive group of patients presenting with middle ear cholesteatoma using preoperative mastoid CT scans, postoperative mastoid CT scan and mastoid diffusion weighted MRI (DWI) between 2012 and 2013...
November 2016: International Journal of Pediatric Otorhinolaryngology
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