Cases reported "Labyrinthitis"

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1/40. cholesteatoma extending into the internal auditory meatus.

    We report our experiences in managing a patient with cholesteatoma complicated by meningitis, labyrinthitis and facial nerve palsy. The antero-inferior half of the tympanum was aerated but the postero-superior portion of the tympanic membrane was tightly adherent to the promontry mucosa. An attic perforation was present at the back of the malleolar head. High-resolution computed tomography also uncovered a fistula in the lateral semicircular canal. Surgical exploration of the middle ear cavity demonstrated that both the vestibule and cochlea were filled with cholesteatoma, and the cholesteatoma extended into the internal auditory meatus through the lateral semi-circular canal fistula. The cholesteatoma was removed by opening the vestibule and cochlea with a preservation of the facial nerve. Post-operatively, an incomplete facial palsy remained, but has improved slowly. There is no sign of recurrence to date after a 3-year period of observation.
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keywords = labyrinthitis
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2/40. Unilateral sensorineural hearing loss and its aetiology in childhood: the contribution of computerised tomography in aetiological diagnosis and management.

    OBJECTIVES: The objective of this study was to identify factors correlated with the CT outcome and to examine the contribution of the CT scan in the aetiological diagnosis and management of unilateral sensorineural hearing loss in childhood. methods: The records of 35 consecutively investigated patients by the audiology Department of Great Ormond Street Hospital between January 1996 and June 1998 were reviewed. The CT results, population sample characteristics, initiation of further investigations after the CT results and management decisions based on the CT results were tabulated and analysed. RESULTS: In a series of 35 consecutively investigated children with unilateral sensorineural hearing loss, 11 CT scans were identified as abnormal. The CT findings were: labyrinthitis ossificans (3), unilaterally dilated vestibular aqueduct (2), bilaterally dilated vestibular aqueduct (2), unilateral deformity of the cochlea ('Mondini') (1), unilateral severe labyrinthine dysplasia (1), unilateral markedly narrow internal acoustic meatus (1), bilaterally dilated lateral semicircular canals (1). The presence of progressive hearing loss was a significant predictor of abnormal CT outcome, while the severity of hearing loss was not. The CT scans offered valuable information regarding the aetiological diagnosis in all cases and, in addition, prompted the appropriate vestibular rehabilitation in three cases, further investigations in four (with dilated vestibular aqueduct) and hearing preservation counselling in two (bilateral DVA) (seven out of 35 = 20%). CONCLUSION: All children with unilateral sensorineural hearing loss should have a CT scan of the petrous pyramids/IAMs performed at some stage, as not only aetiology but also prognosis and management of these cases may be significantly influenced by the CT outcome.
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keywords = labyrinthitis
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3/40. Histopathological findings in the inner ear caused by measles.

    An otopathological analysis of three cases of viral labyrinthitis was performed. Six temporal bones cut in serial sections were available for this study. According to the degree of degenerative changes in various parts of the inner ear two types of morphologically distinct labyrinthitis after measles are presented: the first one with the port of entrance through the internal auditory meatus and characterized by, first and most significantly, changes in the spiral ganglion cells; and the second, as described previously by Lindsay, with the port of entrance of the virus in the inner ear through the stria vascularis, with degenerative changes in various structures within the endolymphatic duct.
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ranking = 2
keywords = labyrinthitis
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4/40. Radiologic diagnosis of labyrinthitis ossificans.

    labyrinthitis ossificans is the pathological ossification of the membranous labyrinthine spaces in response to processes which are destructive of the membranous labyrinth or the endosteum of the otic capsule. It has been primarily a histopathologic diagnosis. Complex motion tomography however, allows a detailed view of the osseous labyrinth and permits the diagnosis in the living state. Radiologic documentation of labyrinthitis ossificans is objective evidence of a process destructive of the membranous labyrinth. It supports the likelihood of an absence of cochlear and vestibular function. It alerts the surgeon to the possible obliteration of key inner ear anatomical landmarks.
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keywords = labyrinthitis
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5/40. The pathology of the temporal bones of a child with acquired cytomegalovirus infection: studies by light microscopy, immunohistochemistry and polymerase-chain reaction.

    STUDY DESIGN: The first case of an acquired cytomegalovirus (CMV) infection of the inner ear is reported in a 3-year-old girl in remission from acute lymphocytic leukemia. methods: Horizontal sections of the temporal bones were studied by light microscopy and immunohistological staining by avidin-biotin-complex-technique was performed on selected archival sections. Three sections were processed for detection of the virus genome by the polymerase chain reaction (PCR). RESULTS: By light microscopy the epithelium of the endolymphatic sac, the utricle and the semicircular canals showed deeply stained acidophilic inclusions and the stria vascularis had a loose structure especially in the intermediate layer. The changes were limited to the non-sensory parts of the labyrinth and no CMV type cells were observed in the organ of corti. There was a loss of inner and outer hair cells and loss of cochlear ganglion cells caused by either the virus or treatment with gentamicin. Standard immunohistochemistry failed to demonstrate staining with CMV antibodies, but PCR, demonstrated CMV-dna in one section. CONCLUSION: Molecular techniques may be able to detect acquired CMV infections in archival pediatric bones temporal bones. The histologic findings in the labyrinth were milder, however showed some similarity to children with congenital CMV labyrinthitis.
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ranking = 1
keywords = labyrinthitis
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6/40. meningitis following stapedotomy: a rare and early complication.

    Controversy exists concerning stapedotomy for patients with small unilateral air-bone gaps. Surgical treatment of otosclerosis involves an opening to the labyrinth and accordingly, a risk of complications, usually vertigo and sensorineural hearing loss and infrequently anacusis. In this paper we present a 33-year-old woman with a small unilateral air-bone gap, who developed bacterial labyrinthitis with meningitis and anacusis three days after stapes surgery. The patient had a stapedotomy with the small fenestra piston prosthesis technique. Due to the potential for serious complications, patients with unilateral otosclerosis and mild hearing loss should be given the possibility to choose between a hearing aid and surgery. Although stapedotomy in the vast majority of interventions is a highly successful procedure and the best method of treatment for otosclerosis if successful, there is a high price to pay in the event of failure.
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ranking = 1
keywords = labyrinthitis
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7/40. The value of enhanced magnetic resonance imaging in the evaluation of endocochlear disease.

    BACKGROUND: gadolinium-enhanced magnetic resonance imaging (GdMRI) is routinely used in the evaluation and management of suspected retrocochlear pathology such as vestibular schwannoma. However, its value in the evaluation and diagnosis of cochlear pathology associated with sensorineural hearing loss (SNHL) has been less clear. STUDY DESIGN: Retrospective review of case histories and imaging studies of patients with SNHL and cochlear enhancement on GdMRI diagnosed between 1998 and 2000. RESULTS: Five patients with SNHL who required gadolinium administration to establish the diagnosis of endocochlear disease were identified. Diagnosed lesions included an intralabyrinthine schwannoma, intracochlear hemorrhage, radiation-induced ischemic change, autoimmune labyrinthitis, and meningogenic labyrinthitis. In these illustrative cases, the GdMRI demonstrated intrinsic high signal or contrast enhancement within the cochlea and labyrinth in the absence of a retrocochlear mass. In one patient with meningogenic labyrinthitis, cochlear enhancement on MRI led to prompt cochlear implantation before the potential development of cochlear ossification. CONCLUSION: Our experience suggests that GdMRI plays a crucial role in the diagnosis of cochlear pathology associated with sensorineural hearing loss and may directly impact patient management.
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ranking = 3
keywords = labyrinthitis
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8/40. A case of tympanogenic labyrinthitis complicated by acute otitis media.

    Widespread use of antimicrobial drugs in the management of otitis media has significantly reduced the incidence of labyrinthitis nowadays. Cases of tympanogenic labyrinthitis following acute otitis media have rarely been reported in recent literature on otolaryngology. We report an unusual case of tympanogenic labyrinthitis that presented with sudden sensorineural hearing loss (SNHL) following acute otitis media in an adult who had no previous otological complaints. An audiogram revealed SNHL with pure tone threshold of 43.7 dB in the left ear. MRI was helpful to identify the inflammatory change of the membranous labyrinth. The patient's hearing returned to normal after treatment. The definite diagnosis of serous labyrinthitis was established retrospectively.
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ranking = 8.0001089470986
keywords = labyrinthitis, otitis
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9/40. Nontypeable haemophilus influenzae meningitis complicated by hearing loss in a 9-year-old hiv-infected boy.

    A 9-year old boy with perinatal hiv infection developed meningitis due to nontypeable haemophilus influenzae. His course was complicated by progressive hearing loss due to labyrinthitis ossificans. Placement of cochlear implant improved hearing thresholds. Nontypeable H. influenzae meningitis and use of cochlear implants have not previously been in hiv-infected children.
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ranking = 1
keywords = labyrinthitis
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10/40. Early bilateral eighth nerve involvement in meningococcal meningitis.

    A male Navy recruit had hearing loss and bilateral otitis media. Meningeal signs, not initially present, developed approximately 48 hours after admission to the hospital. Type Y meningococcus was isolated from blood cultures drawn after two days of ampicillin administered orally. Permanent, bilateral, vestibular and auditory loss resulted, in spite of adequate doses of penicillin. This unusual presentation of bilateral eighth nerve involvement was thought to be due to a localized, bilateral meningococcal labyrinthitis.
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ranking = 1.0000155638712
keywords = labyrinthitis, otitis
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