Monostotic fibrous dysplasia of the temporal bone

1999 ◽  
Vol 113 (8) ◽  
pp. 772-774 ◽  
Author(s):  
J. Xenellis ◽  
A. Bibas ◽  
L. Savy ◽  
P. Maragoudakis ◽  
P. Nomicos
Keyword(s):  
Computed Tomography ◽  
Fibrous Dysplasia ◽  
Temporal Bone ◽  
Symptomatic Disease ◽  
Normal Bone ◽  
Limited Surgery

AbstractFibrous dysplasia is a slowly progressive bony disorder where normal bone is replaced by abnormal fibroosseous tissue. Its monostotic variety in the temporal bone is very rare and such a case is presented here. Computed tomography (CT) may be adequate for the diagnosis and follow-up of these patients. Limited surgery should only be considered in cases of symptomatic disease.

Monostotic Fibrous Dysplasia of the Temporal Bone with Associated Lymphadenopathy

1994 ◽  
Vol 73 (5) ◽  
pp. 328-330 ◽  
Author(s):  
Martin J. Donnelly ◽  
Donald P. McShane ◽  
Hugh Burns
Keyword(s):  
Fibrous Dysplasia ◽  
Temporal Bone ◽  
Endocrine Disorders ◽  
Normal Bone ◽  
Mucous Membranes ◽  
Long Term Follow Up ◽  
Fibrous Dysplasia Of Bone ◽  
Abnormal Pigmentation

Fibrous dysplasia of bone is a benign idiopathic disorder where abnormal fibro-osseous tissue replaces normal bone. The bony abnormalities may be associated with endocrine disorders and abnormal pigmentation of the skin and mucous membranes. Involvement of the temporal bone is a very rare occurrence. We report a case of monostotic fibrous dysplasia of the temporal bone with associated lymphadenopathy. To our knowledge this association has not been previously described in the literature. We also emphasise the need for long term follow up of patients with this condition as cholesteatoma may develop insidiously.

scholarly journals Fibrous dysplasia of the maxilla: a case report

2016 ◽  
Vol 33 (01) ◽  
pp. 037-040
Author(s):  
R. Sousa ◽  
R. Tavares ◽  
C. Lins
Keyword(s):  
Computed Tomography ◽  
Fibrous Dysplasia ◽  
Maxillary Antrum ◽  
Morphological Changes ◽  
Bone Lesion ◽  
Facial Asymmetry ◽  
Posterior Wall ◽  
Normal Morphology ◽  
Normal Bone ◽  
Benign Bone Lesion

Abstract Introduction: Fibrous dysplasia is a benign bone lesion characterized by replacement of normal bone by fibrous connective tissue, and its diagnosis is based on clinical, radiological and histological findings. Objective: The aim of this study was to report a case of unilateral fibrous dysplasia in the maxilla, in the palate region, by using computed tomography. Results: On examination it was observed: a nodular lesion, with similar staining to the palatal mucosa with varicosities, regular edges, irm and painless. The radiographic indings on computed tomography showed one diffuse and heterogeneous thickening of the bony elements involving the hard palate extending to the posterior wall of the maxillary antrum. We opted for the preservation of the case, considering the age of the patient, the absence of facial asymmetry and lack of aesthetic and functional impairment. Conclusion: Thus, we emphasize that the knowledge of morphological changes is important for the diagnosis of bone pathologies, and the dentist must be familiar with the normal morphology of the structures and their possible abnormalities.

Asymptomatic fibrous dysplasia of the temporal bone

2015 ◽  
Vol 129 (S2) ◽  
pp. S42-S45 ◽  
Author(s):  
T Kimitsuki ◽  
S Komune
Keyword(s):  
Computed Tomography ◽  
Fibrous Dysplasia ◽  
Temporal Bone ◽  
Watchful Waiting ◽  
Unknown Origin ◽  
Fibrotic Tissue ◽  
Slow Progression ◽  
Bone Trabeculae ◽  
The Right ◽  
Tomography Scan

AbstractIntroduction:Fibrous dysplasia is a bone disorder of unknown origin in which normal bone is replaced with fibrotic tissue and disorganised bone trabeculae. The temporal bone is rarely affected. Because of the slowly progressive course of the disease, many mild cases may never be recognised and are found incidentally. We present a patient with fibrous dysplasia of the right temporal bone, who had few complaints.Objective:A 62-year-old man was incidentally found to have fibrous dysplasia of the temporal bone on routine computed tomography scan.Method:One case report.Results:Computed tomography showed a thickening of the right temporal bone with a ground-glass appearance. The 62-year-old man opted for watchful waiting.Conclusion:We have presented an asymptomatic fibrous dysplasia of the temporal bone. Mild cases may never be recognised and are found incidentally because of their slow progression.

scholarly journals Management of the Temporal Bone Fibrous Dysplasia With External Auditory Canal Stenosis and Secondary Cholesteatoma in an Asian Population: A 11-Case Series

2020 ◽  
pp. 014556132092792
Author(s):  
Kun Zhang ◽  
Peng Qu ◽  
Bing Wang ◽  
Endong Zhang ◽  
Bing Chen
Keyword(s):  
Hearing Loss ◽  
Fibrous Dysplasia ◽  
Temporal Bone ◽  
External Auditory Canal ◽  
Perioperative Complications ◽  
Case Series ◽  
Asian Population ◽  
Canal Stenosis

Objective: This article summarizes the experience of diagnosis and treatment of temporal bone fibrous dysplasia (FD) with external auditory canal (EAC) stenosis and secondary cholesteatoma in the Chinese population, in order to improve the quality of life of patients in the future. Methods: Eleven patients with FD of the temporal bone who underwent surgery were retrospectively reviewed. Results: All lesions originated from the temporal bone, and all involved of the EAC. There were 11 cases of cholesteatoma in the EAC, 4 cases of cholesteatoma in the middle ear. The most common symptoms were hearing loss (100%), tinnitus (36.4%), and otorrhea (36.4%). Two patients were severe-profound sensorineural hearing loss, and one patient was complicated with subperiosteal abscesses. All 11 patients underwent surgery. There were no perioperative complications in this series and median follow-up time was 4.2 years. Conclusion: Temporal bone FD remains a rare diagnosis, especially in the Asian population. The lesions mainly lead to stenosis of the EAC, especially at the osteochondral junction. Cholesteatoma is the main complication of this disease, which is secondary to occlusion of the EAC with the growth of the lesion. Canaloplasty of EAC combined with wide meatoplasty can provide excellent prognosis in most cases.

scholarly journals ALADA Dose Optimization in the Computed Tomography of the Temporal Bone: The Diagnostic Potential of Different Low-Dose CT Protocols

Diagnostics ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1894
Author(s):  
Barbara Kofler ◽  
Laura Jenetten ◽  
Annette Runge ◽  
Gerald Degenhart ◽  
Natalie Fischer ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Temporal Bone ◽  
Cone Beam Ct ◽  
Ct Scanner ◽  
Diagnostic Quality ◽  
Diagnostic Potential ◽  
Incudostapedial Joint ◽  
Bone Structures

Objective: Repeated computed tomography (CT) is essential for diagnosis, surgical planning and follow-up in patients with middle and inner ear pathology. Dose reduction to “as low as diagnostically acceptable” (ALADA) is preferable but challenging. We aimed to compare the diagnostic quality of images of subtle temporal bone structures produced with low doses (LD) and reference protocols (RP). Methods: Two formalin-fixed human cadaver heads were scanned using a 64-slice CT scanner and cone-beam CT (CBCT). The protocols were: RP (120 kV, 250 mA, CTDIvol 83.72 mGy), LD1 (100 kV, 80 mA, CTDIvol 26.79 mGy), LD2 (100 kV, 35 mA, CTDIvol 7.66 mGy), LD3 (80 kV, 40 mA, CTDIvol 4.82 mGy), and CBCT standard protocol. Temporal bone structures were assessed using a 5-point scale. Results: A median score of ≥2 was achieved with protocols such as the tendons of m. tensor tympani (RP/LD1/LD2/CBCT) and m. stapedius (CBCT), the incudostapedial joint (RP/LD1/CBCT), the incudomalleolar joint (RP/LD1/LD2/CBCT), the stapes feet (RP/LD1/CBCT), the stapes head (RP/LD1/LD2/CBCT), the tympanic membrane (RP/LD1/LD2/CBCT), the lamina spiralis ossea (none), the chorda tympani (RP/LD1/CBCT), and the modiolus (RP/LD1/LD2/CBCT). Adaptive statistical iterative reconstructions did not show advantages over the filtered back projection. Conclusions: LD protocols using a CTDIvol of 7.66 mGy may be sufficient for the identification of temporal bone structures.

scholarly journals HIGH RESOLUTION COMPUTED TOMOGRAPHY IN THE EVALUATION OF TEMPORAL BONE PATHOLOGY

2021 ◽  
Vol 5 (9) ◽  
Author(s):  
Hari Ram Jat ◽  
Sheena Daswani ◽  
Mark Sheldon ◽  
Neel Patel
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Temporal Bone ◽  
Cross Sectional Study ◽  
Bone Pathology ◽  
High Resolution Computed Tomography ◽  
Cross Sectional ◽  
Anatomic Structure ◽  
Cranial Nerve Palsies

Introduction: The temporal bone is a complex anatomic structure that contains the organs of hearing and balance and has direct contact with brainstem, cerebellum and temporal lobe of brain. Radiographic assessment of temporal bone is difficult owing to complicated anatomical structure of middle and inner ear. High resolution computed tomography (HRCT) - a modification of routine CT produces images with higher contrast and a better spatial resolution. HRCT has the advantage of topographic visualization, devoid of artifacts from superimposition of structures. It provides information not only about bony outline but also soft tissue changes making it possible for the accurate assessment of pathology prior to surgical exploration regarding location, extent and complication of the disease. Material and methods: This was a cross sectional study of 50 patients who were clinically suspected of having symptoms related to the temporal bone like hearing loss, otorrhea, otalgia, tinnitus, vertigo, ear bleed, cranial nerve palsies, fever, ataxia etc were referred and subjected to HRCT of the temporal bone at Geetanjali Medical College and Hospital (Udaipur) between Nov 2017 and June 2019. Results: CSOM and Cholesteatoma were the most common diseases found by HRCT and Intra-op/Follow-up scan followed by Fractures, acoustic neuroma, Glomus tympanicum and Atretic EAC. Almost all the lesions were correctly detected by HRCT when confirmed with Intra-op/follow up findings. Conclusion: HRCT can very accurately detect Temporal bone pathology. Keywords: HRCT, CSOM, CT

Fibrous Dysplasia of the Temporal Bone: Report of a Case and a Review of its Characteristics

2000 ◽  
Vol 79 (1) ◽  
pp. 52-57 ◽  
Author(s):  
Chariton E. Papadakis ◽  
Charalambos E. Skoulakis ◽  
Emmanuel P. Prokopakis ◽  
Antonios A. Nikolidakis ◽  
John G. Bizakis ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Fibrous Dysplasia ◽  
Temporal Bone ◽  
Bone Development ◽  
Osteoblastic Differentiation ◽  
Unknown Etiology ◽  
Normal Bone ◽  
Mixed Hearing Loss ◽  
Characteristic Features ◽  
Mesenchymal Precursor

Fibrous dysplasia is an uncommon benign disorder of unknown etiology. It represents a disturbance of normal bone development—specifically a defect in osteoblastic differentiation and maturation that originates in the mesenchymal precursor of the bone. Because fibrous dysplasia shows a predilection for the facial and cranial bones, where it causes deformity and dysfunction, the disease is of particular interest to the otolaryngologist. In this paper, we report a case of fibrous dysplasia of the temporal bone, the first symptom of which was a mixed hearing loss. We discuss the characteristic features of this specific location of the disease, the differential diagnosis, and the treatment policy. We also address the issue of secondary sensorineural hearing loss.

scholarly journals Fibrous Dysplasia of the Temporal Bone

2010 ◽  
Vol 1 (2) ◽  
pp. 121-124
Author(s):  
Baldev Singh ◽  
Prahlad Duggal ◽  
Ruchika Grover
Keyword(s):  
Hearing Loss ◽  
Fibrous Dysplasia ◽  
Temporal Bone ◽  
Incidental Finding ◽  
Surface Display ◽  
Functional Results ◽  
Conservative Surgery ◽  
Surgery Patient ◽  
Good Cosmetic

Abstract We report a case of monostotic fibrous dysplasia of temporal bone in a 15-year-old male which presented with mass in the temporomastoid region. There was no associated complaint and patient came only for cosmetic correction of the asymmetry of skull. Conductive hearing loss was an incidental finding on audiogram. Computed tomography showed increased bone thickness with ground glass appearance. Shaded surface display of the skull was used in assessing the external bony deformity. Patient was operated for contouring of the bone and canalplasty which improved the cosmetic appearance as well as corrected the hearing loss thereby avoiding an extensive surgery. Patient is under regular follow-up with good cosmetic and functional results. This case highlights the importance of conservative surgery and regular follow-up in selective cases of temporal bone fibrous dysplasia along with use of shaded surface display for planning the correction of external deformity.

scholarly journals External auditory canal stenosis due to isolated fibrous dysplasia of temporal bone: a case report

2019 ◽  
Vol 6 (1) ◽  
pp. 204
Author(s):  
Manju Silu ◽  
Gaurav Gupta
Keyword(s):  
Fibrous Dysplasia ◽  
Temporal Bone ◽  
External Auditory Canal ◽  
Fibrous Tissue ◽  
Benign Disease ◽  
High Grade ◽  
Rare Entity ◽  
Canal Stenosis ◽  
Woven Bone

<p class="abstract">Benign disease of bone marrow in which marrow is reorganize into fibrous tissue and immature woven bone, is known as fibrous dysplasia. Involvement of temporal bone is rare and can be isolated or in monostotic or polystotic form with various otologic manifestations. We are here reporting a case of fibrous dysplasia of the unilateral temporal bone who presented with hearing loss and stenosis of the external auditory canal. External auditory canal stenosis due to fibrous dysplasia was managed with canalplasty and patient was free of recurrence till last follow up. Fibrous dysplasia of isolated temporal bone is a rare entity which requires high grade of suspicion in a patient who presents with unusual bony swellings in the ear. Its management usually includes resection of the most affected part of temporal bone in order to achieve auditory canal patency and restoration of hearing. After surgery, a close follow up is warranted due to its propensity of recurrence.</p>

Bone and Bone Marrow Blood Flow in Blastic Crisis of Chronic Granulocytic Leukaemia

1979 ◽  
Vol 18 (06) ◽  
pp. 290-292 ◽  
Author(s):  
R. Lahtinen ◽  
T. Lahtinen
Keyword(s):  
Bone Marrow ◽  
Cell Proliferation ◽  
Blood Flow ◽  
Proximal Femur ◽  
Blastic Crisis ◽  
Normal Bone ◽  
Chronic Granulocytic Leukaemia ◽  
Washout Curves ◽  
Bone Marrow Blood

SummaryA l33Xe washout method has been used for measuring changes of blood flow in the proximal femur of a patient with the blastic crisis of chronic granulocytic leukaemia. In the hyperplastic phase the blood flow was highly increased and over three times greater than in the hypoplastic phase of the disease and over thirteen times greater than the value in normal bone. The bone circulation and especially the first component of the two-exponential bone washout curves appeared to reflect cell proliferation and neoplastic activity of the whole bone marrow. The method may provide clinically important information in the follow-up of selected haematological diseases.

Sign in / Sign up

Export Citation Format

Share Document