External auditory canal osteoma

Introduction. Osteomas are a slow growing benign neoplasm of unknown etiology very rarely involving the temporal bone. They develop in the external auditory canal on squamous sections, in the mastoid, middle and inner ear. By bone composition they are divided into spongious (osteoma spongiosum) and compact osteomas (osteoma eburnum); by growth direction, into outward-growing (exosteoma) and in inwardgrowing (endosteoma); into unilateral and bilateral; by size, into small and gigantic; by surface structure, into smooth and multilobular; by number, into solitary and multiple; into symmetrical and asymmetrical. The symptoms of intracanalicular osteomas are the result of auditory canal obstruction. Diagnosis is made based on case history, clinical examination, audiological processing and radiography (temporal bone CT scan), and confirmed by histopathological examination of the bone. In terms of differential diagnosis, they must be distinguished from exostoses, bone tissue proliferation and osteoid osteomata. The progress of the disease is prolonged, as they are slow growing, asymptomatic and benign tumours. Therapy is surgical only. Case Outline. The report presents the case of a 70-year old patient with the osteoma of the right external auditory canal. In our patient, the osteoma arose in the auditory canal, the most frequent localization; it was unilateral, solitary, multilobular and compact. It was discovered accidentally, during otoscopic examination. The clinical diagnosis was confirmed by CT scan of the temporal bone. We applied surgical therapy by retroauricular approach. The removed bone change was about 12 mm high, 13-14 mm deep and about 8 mm wide. Histopathological findings confirmed osteoma. Conclusion. Due to their slow growth, the rate of auditory canal osteomas develop asymptomatically for a long time without the characteristic clinical features. In most cases, they are discovered accidentally during otoscopic or radiographic examination. The method of choice in diagnosis is temporal bone CT scan. Therapy is surgical.

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Rare proliferative and inflammatory pathologies localized in the temporal bone - a review of the literature

Polski Przegląd Otorynolaryngologiczny ◽

10.5604/01.3001.0013.2564 ◽

2019 ◽

Vol 8 (2) ◽

pp. 1-5

Author(s):

Adam Roszkowski Roszkowski ◽

Alicja Witkowska ◽

Piotr Baranek ◽

Anna Rzepakowska ◽

Emilia Wnuk ◽

...

Keyword(s):

Hearing Loss ◽

Fibrous Dysplasia ◽

Temporal Bone ◽

Inflammatory Pseudotumor ◽

Soft Tissues ◽

Bone Structure ◽

Histopathological Examination ◽

Fibrous Tissue ◽

Diagnostic Methods ◽

Unknown Etiology

Proliferative-inflammatory pathologies may occupy the temporal bone, resulting in: hearing loss, vestibular dysfunction, and neuropathies from cranial nerve compression. Although their occurrence is episodic, the appropriate diagnostic procedure is extremely important to achieve expected therapeutic effect. The aim of study was characterization of selected proliferative-inflammatory pathologies that may occupy the temporal bone: fibrous dysplasia, inflammatory pseudotumor, osteoradionecrosis, and presentation of diagnostic methods for the differentiation of these diseases as well as discussion on appropriate therapeutic options. Fibrous dysplasia (fibrous dysplasia) is a slowly progressive, benign bone disorder of unknown etiology characterized by abnormal proliferation of fibrous tissue. IPT (inflammatory pseudotumor) is a rare, non-malignant inflammatory process of unknown etiology, characterized by connective tissue proliferation and infiltration of inflammatory cells. Osteoradionecrosis of the temporal bone (TB-ORN) is a rare but potentially fatal complication of radiotherapy for head and neck cancer. Due to the similarity of symptoms with typical inflammatory conditions of middle ear (pain, otorrhea, hearing loss), selected disorders may be a dilemma regarding the diagnosis and proper further treatment. The clinical examination is mandatory, however radiological imaging may demonstrate the existence of specific changes and direct the diagnosis. The computed tomography of fibrous dysplasia shows the abnormal organization of the bone structure. Magnetic resonance, as the most sensitive for inflammatory pseudotumors, visualizes inflammatory infiltrates in soft tissues. The spiral tomography of temporal identifies the erosion in the course of osteoradionecrosis. However the final diagnosis may be establish post the histopathological examination and exclusion of the neoplastic process.

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OSTEOMA OF EXTERNAL AUDITORY CANAL: CASE REPORT

UP STATE JOURNAL OF OTOLARYNGOLOGY AND HEAD AND NECK SURGERY ◽

10.36611/upjohns/volume9/issue2/10 ◽

2021 ◽

Vol Volume 9 (upjohns/volume9/Issue2) ◽

pp. 51-53

Author(s):

Anshu Sood

Keyword(s):

Case Report ◽

Head And Neck ◽

Temporal Bone ◽

External Auditory Canal ◽

Benign Tumor ◽

Histopathological Examination ◽

Otologic Surgery ◽

Superior Part ◽

History Of ◽

Trauma Ct

ABSTRACT An osteoma of the external auditory canal is an uncommon benign tumor with an incidence estimated to be 0.05% of total otologic surgery. In head and neck, they most often arise in the frontoethmoidal region and rarely temporal bone. Osteomas usually asymptomatic and discovered incidentally. A 35 male presented with swelling in right posterior superior part of EAC, without any history of ear picking , swimming or trauma. CT temporal bone revealed a solitary osteoma, with was excised surgically. Histopathological examination confirmed Osteoma.

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An Unusual Case of Ameloblastoma observed in the Left Anterior Mandible

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1616 ◽

2014 ◽

Vol 15 (6) ◽

pp. 775-778

Author(s):

Omer Gunhan ◽

Emin Murat Canger ◽

Peruze Çelenk ◽

Emel Bulut

Keyword(s):

Unusual Case ◽

Panoramic Radiography ◽

Histopathological Examination ◽

Small Dimension ◽

Chief Complaint ◽

Radiographic Examination ◽

Radiolucent Lesion ◽

Odontogenic Neoplasm ◽

Anterior Mandible ◽

Slow Growing

ABSTRACT Aim To report a small intaalveolar ameloblastoma which resembled cystic lesion, and to emphasize the value of Computed tomography (CT) in radiographic examination. Background Ameloblastoma is a slow-growing, locally invasive odontogenic neoplasm that accounts for approximately 10% of all tumors detected in the jaws. Radiographically, those tumors are usually well-defined. Computerized tomography is highly recommended to confirm the diagnosis. Case description A 48-year-old female attended with a chief complaint of painless swelling in the left anterior of mandible, 1 month duration. In intraoral examination, non-fluctuant, immobile, approximately 1 × 1 cm in dimension, painless, swelling which had a bone-like hardness and located in the mandibular canine region was detected. Panoramic radiography revealed a well circumscribed unilocular radiolucent lesion located in the inter-radicular area of left mandibular lateral and canine teeth. In CT examination it was realized that the lesion was multilocular. Histopathological examination of the biopsy specimen was reported as ameloblastoma. Clinical significance It is extremely difficult to find such an ameloblastoma in small dimension in alvolar bone. How to cite this article Canger EM, Çelenk P, Bulut E, Günhan Ö. An Unusual Case of Ameloblastoma observed in the Left Anterior Mandible. J Contemp Dent Pract 2014;15(6):775-778.

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Localized Castleman’s Disease in the Breast in a Young Woman

Case Reports in Pathology ◽

10.1155/2016/8413987 ◽

2016 ◽

Vol 2016 ◽

pp. 1-3 ◽

Cited By ~ 1

Author(s):

Rafael Parra-Medina ◽

José Ismael Guio ◽

Patricia López-Correa

Keyword(s):

Lymphoproliferative Disorder ◽

Histopathological Examination ◽

Castleman’S Disease ◽

Unknown Etiology ◽

Castleman's Disease ◽

Axillary Lymphadenopathy ◽

The Right ◽

Slow Growing ◽

Hyaline Vascular Variant

Castleman’s disease (CD) is a rare lymphoproliferative disorder of unknown etiology. It typically occurs in adulthood but it may also develop in childhood. Clinically, this disease may be classified as localized (unicentric) or systemic (multicentric). Six cases of breast CD have been described in the literature, and all have been reported in adults. Herein we describe the case of a 15-year-old female who presented with a slow-growing tumor in the right breast. The tumor was excised and histopathological examination demonstrated hyaline vascular variant CD. After two years of follow-up, the patient was asymptomatic without evidence of cervical or axillary lymphadenopathy.

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Otopalatodigital syndrome type I: New temporal bone CT-scan sign in a case with a de novo novel mutation

Acta Otorrinolaringológica Española ◽

10.1016/j.otorri.2018.05.003 ◽

2019 ◽

Vol 70 (5) ◽

pp. 306-309

Author(s):

Marta Martínez-López ◽

Ana Navedo ◽

Reyes López De Mesa ◽

Francisco Javier Cervera-Paz

Keyword(s):

Ct Scan ◽

Temporal Bone ◽

De Novo ◽

Novel Mutation ◽

Type I ◽

Syndrome Type ◽

Temporal Bone Ct ◽

Otopalatodigital Syndrome

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Eight Items to Check on a Temporal Bone CT-Scan

ORL ◽

10.1159/000491491 ◽

2018 ◽

Vol 80 (5-6) ◽

pp. 338-344 ◽

Cited By ~ 1

Author(s):

Jose Fernando Polanski ◽

Lucas Resende Lucinda ◽

Thomas Linder

Keyword(s):

Ct Scan ◽

Temporal Bone ◽

Temporal Bone Ct

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Temporal Bone CT Scan for Malleal Ligaments Assessment

Otology & Neurotology ◽

10.1097/mao.0000000000001994 ◽

2018 ◽

Vol 39 (10) ◽

pp. e1054-e1059 ◽

Cited By ~ 1

Author(s):

Yona Vaisbuch ◽

Davood K. Hosseini ◽

Bryan Lanzman ◽

Stephen C. Marcott ◽

Yifei Ma ◽

...

Keyword(s):

Ct Scan ◽

Temporal Bone ◽

Temporal Bone Ct

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The relationship between tinnitus and vascular anomalies on temporal bone CT scan: a retrospective case control study

Surgical and Radiologic Anatomy ◽

10.1007/s00276-016-1629-6 ◽

2016 ◽

Vol 38 (7) ◽

pp. 835-841 ◽

Cited By ~ 10

Author(s):

Betul Kizildag ◽

Nagihan Bilal ◽

Nursel Yurttutan ◽

Mehmet Akif Sarica ◽

Gulay Gungor ◽

...

Keyword(s):

Ct Scan ◽

Temporal Bone ◽

Case Control Study ◽

Case Control ◽

Vascular Anomalies ◽

Retrospective Case ◽

Temporal Bone Ct ◽

The Relationship ◽

Control Study

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Cochlear Otosclerosis: An Undiagnosed Cause of Progressive Sensorineural Hearing Loss

Bengal Journal of Otolaryngology and Head Neck Surgery ◽

10.47210/bjohns.2020.v28i2.329 ◽

2020 ◽

Vol 28 (2) ◽

pp. 127-137

Author(s):

Asish Kumar Lahiri ◽

Anandita Gupta ◽

Rakesh Vohra ◽

Shalabh Sharma ◽

Satinder Singh

Keyword(s):

Hearing Loss ◽

High Resolution ◽

Ct Scan ◽

Sensorineural Hearing Loss ◽

Temporal Bone ◽

Young Patients ◽

Oval Window ◽

Sensorineural Hearing ◽

Unknown Etiology ◽

High Resolution Ct

Introduction Otosclerosis presents as conductive or mixed hearing loss depending upon the stage of the disease. Isolated sensorineural hearing loss though known to occur has been rarely reported. Pure cochlear otosclerosis presenting as sensorineural hearing loss should be considered as a differential diagnosis in young patients presenting with progressive hearing loss. The aim of this article is to note the prevalence of cochlear otosclerosis in young patients presenting with progressive sensorineural hearing loss. Materials and Methods Retrospective chart analysis of 19 patients who presented with progressive SNHL with unknown etiology was done. Results Otosclerosis involving the pericochlear region was diagnosed in 27 ears which was identified by high resolution CT scan of temporal bone. In four ears, in addition, there was demineralization just anterior to oval window without clinical evidence of stapes fixation. Conclusion In young patients with progressive SNHL, high resolution CT scan of temporal bone should be done to identify progressive cochlear otosclerosis. Medical management should be initiated in these patients to halt the progression of disease.

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