MyMedR

Chandrasekaran S, Zainal J

Aust N Z J Surg, 1993 Oct;63(10):780-3.

A total of 76 patients with traumatic extradural haematoma were treated within a period of 3 years. Four patients developed delayed extradural haematomas. These cases are reported in view of the unusual sequence and the importance of early diagnosis.

Matched MeSH terms: Temporal Bone/injuries

Fulltext Temporal bone squamous cell carcinoma - Penang experience

Ng SY, Pua KC, Zahirrudin Z

Med J Malaysia, 2015 Dec;70(6):367-8.

PMID: 26988214 MyJurnal

Temporal bone squamous cell carcinoma (TBSCC) is rare and poses difficulties in diagnosing, staging and management. We describe a case series with six patients who were diagnosed TBSCC, from January 2009 to June 2014, with median age of 62 years old. All patients presented with blood-stain discharge and external auditory canal mass, showing that these findings should highly alert the diagnosis of TBSCC. Three patients staged T3 and another three with T4 disease. High-resolution CT (HRCT) temporal findings were noted to be different from intraoperative findings and therefore we conclude that MRI should be done to look for middle ear involvement or other soft tissue invasion for more accurate staging. Lateral temporal bone resection (LTBR) and parotidectomy was done for four patients with or without neck dissection. Patients with positive margin, perineural invasion or parotid and glenoid involvement carry poorer prognosis and postoperative radiotherapy may improve the survival rate. One patient had successful tumor resection via piecemeal removal approach in contrast with the recommended en bloc resection shows that with negative margin achieved, piecemeal removal approach can be a good option for patients with T2-3 disease. In general, T4 tumor has dismal outcome regardless of surgery or radiotherapy given.

Matched MeSH terms: Temporal Bone

Cochlear duct length-one size fits all?

Thong JF, Low D, Tham A, Liew C, Tan TY, Yuen HW

Am J Otolaryngol, 2017 Mar-Apr;38(2):218-221.

PMID: 28139318 DOI: 10.1016/j.amjoto.2017.01.015

OBJECTIVE: Recent studies demonstrated the utility of high-resolution computed tomography (HRCT) scans in measuring basal cochlear length and cochlear insertion depths. These studies showed significant variations in the anatomy of the cochlea amongst humans. The aim of our study was to investigate for gender and racial variations in the basal turn length of the human cochlea in an Asian population.

METHOD: HRCT temporal bone data from year 1997 till 2012 of patients with normally developed cochleae who reported with otologic disease was obtained. Reconstruction of the full basal turn was performed for both ears. The largest distance from the midpoint of the round window, through the midmodiolar axis, to the lateral wall was measured (distance A). Length of the lateral wall of the cochlea to the first turn (360°) was calculated and statistically analyzed.

RESULTS: HRCT temporal bone data from 161 patients was initially obtained. Four patients were subsequently excluded from the study as they were of various other racial groups. Study group therefore comprised of 157 patients (314 cochleae). Mean distance A was statistically different between the two sides of the ear (right 9.09mm; left 9.06mm; p=0.0069). Significant gender and racial differences were also found. Mean distance A was 9.17mm in males and 8.97mm in females (p=0.0016). The racial groups were Chinese (39%), Malay (38%) and Indian (22%). Between racial groups, mean distance A was 9.11mm (Chinese), 9.11mm (Malays) and 8.99mm (Indians). The mean basal turn lengths ranged from 19.71mm to 25.09mm. With gender factored in, significant variation in mean basal turn lengths was found across all three racial groups (p=0.04).

CONCLUSION: The view of the basal turn of the cochlea from HRCT is simple to obtain and reproducible. This study found significant differences in basal cochlear length amongst male and female Asian patients, as well as amongst various racial groups. This has implications for cochlear electrode insertion as well as electrode array design.

Matched MeSH terms: Temporal Bone/anatomy & histology*

Fulltext Endolymphatic sac tumour

Zulkarnaen M, Tang IP, Wong SL

Malays J Pathol, 2012 Jun;34(1):53-5.

PMID: 22870599 MyJurnal

We present a case of a papillary tumour at the cerebellopontine angle in a 41-year-old man. He presented with left-sided facial and ear pain associated with dizziness, nystagmus and hearing loss. CT scan of the temporal bone showed a destructive tumour at the left cerebellopontine angle. Surgical excision was performed and the diagnosis of the endolymphatic sac tumour was made. Endolymphatic tumour is a low grade adenocarcinoma that originates from the endolymphatic sac. The definitive diagnosis requires a combination of clinical features, radiological finding and pathological correlation.

Matched MeSH terms: Temporal Bone/pathology

Therapeutic approach in managing patients with large vestibular aqueduct syndrome (LVAS)

Asma A, Anouk H, Luc VH, Brokx JP, Cila U, Van De Heyning P

Int J Pediatr Otorhinolaryngol, 2010 May;74(5):474-81.

PMID: 20189254 DOI: 10.1016/j.ijporl.2010.01.023

To discuss the clinical approach in managing patients with large vestibular aqueduct syndrome.

Matched MeSH terms: Temporal Bone/radiography

Fulltext Concurrent Mastoid Cellulitis and Langerhans Cells Histiocytosis:  A Challenging Diagnosis

Ong HY, Goh LC, Santhi K, Sha'ariyah MM

Oman Med J, 2018 Mar;33(2):167-170.

PMID: 29657688 DOI: 10.5001/omj.2018.31

Langerhans cell histiocytosis (LCH) is a rare proliferative disorder, which commonly arises in the bone and may involve other systems. To date, the diagnosis of temporal bone LCH remains a challenge as it may masquerade as a common ear infection. We report a case of a child who presented to us with persistent bilateral ear discharge for four months and was not responding to treatment. Her condition subsequently worsened, with clinical features and radiological findings suggestive of mastoid cellulitis. Nevertheless, further histopathology study revealed LCH.

Matched MeSH terms: Temporal Bone

Surgical management of tympanojugular paragangliomas with intradural extension, with a proposed revision of the Fisch classification

Sivalingam S, Konishi M, Shin SH, Lope Ahmed RA, Piazza P, Sanna M

Audiol. Neurootol., 2012;17(4):243-55.

PMID: 22584244 DOI: 10.1159/000338418

Tympanojugular paragangliomas (TJPs) with intradural extension can be successfully treated by a single or staged procedure with low surgical morbidity.

Matched MeSH terms: Temporal Bone/surgery*

Metachronous inflammatory myofibroblastic tumour in the temporal bone: case report

Goh BS, Tan SP, Husain S, Rose IM, Saim L

J Laryngol Otol, 2009 Oct;123(10):1184-7.

PMID: 19192318 DOI: 10.1017/S0022215109004642

We report an extremely rare case of metachronous inflammatory myofibroblastic tumour in the temporal bone.

Matched MeSH terms: Temporal Bone/pathology; Temporal Bone/surgery*

Fulltext Rare bone disorder affecting the temporal bone

Sreetharan SS, Hazim M, Saim L

Med J Malaysia, 2006 Mar;61(1):103-5.

PMID: 16708745 MyJurnal

Fibrous dysplasia is an uncommon benign disorder of unknown etiology. Rarely, it presents isolated in the temporal bone. We present three cases of monostotic fibrous dysplasia that involved the entire temporal bone.

Matched MeSH terms: Temporal Bone/physiopathology*; Temporal Bone/surgery

Fulltext Surgical intervention in traumatic facial nerve paralysis

Yeoh TL, Mahmud R, Saim L

Med J Malaysia, 2003 Aug;58(3):432-6.

PMID: 14750385

A four years review from June 1998 to June 2002 of traumatic facial nerve paralysis from temporal bone fractures that required surgical intervention is presented. The aim of this clinical presentation was to determine the current pattern of cases with traumatic facial paralysis which required surgical intervention at our center. There were six cases, of which four (66%) were longitudinal fractures, one each (17%) had transverse fracture and fracture over the lateral wall of mastoid. Hearing loss (83%) was the commonest associated clinical symptom. All cases underwent decompression via the transmastoid surgical approach. Intraoperative findings revealed oedema of facial nerve involving vertical segment and horizontal segment in three cases each respectively. Two cases had concomitant bony impingement. The facial nerve functions in four cases (66%) and one case recovered to House Brackmann grade 2 and 4, 12 months and 3 months respectively postsurgery. The case with transverse fracture remained as House Brackmann grade 5 after two years.

Matched MeSH terms: Temporal Bone/injuries*

Fulltext Large vestibular aqueduct syndrome

Dipak S, Prepageran N, Sazila AS, Rahmat O, Raman R

Med J Malaysia, 2005 Oct;60(4):489-91.

PMID: 16570713

Large Vestibular Aqueduct Syndrome is a congenital malformation of the temporal bone characterised by early onset of sensorineural hearing loss and vestibular disturbance. Familial large vestibular aqueduct syndrome suggests autosomal recessive or X-linked inheritance and accounts for non-syndromic sensorineural hearing loss in these patients.

Matched MeSH terms: Temporal Bone/abnormalities*

Fulltext Annular bony spur

Raman R

Indian J Otolaryngol Head Neck Surg, 2000 Jul;52(3):318.

PMID: 23119711 DOI: 10.1007/BF03006219

A micro anatomical feature in the ear useful in surgery is described.

Matched MeSH terms: Temporal Bone

Temporal bone actinomycosis: a histopathologic report

Sivarajasingam M, Rajan P

Otol Neurotol, 2007 Sep;28(6):869-70.

PMID: 17435522

Matched MeSH terms: Temporal Bone/pathology*; Temporal Bone/radiography

Fulltext Pneumatization of Mastoid Air Cells, Temporal Bone, Ethmoid and Sphenoid Sinuses. Any Correlation?

Hindi K, Alazzawi S, Raman R, Prepageran N, Rahmat K

Indian J Otolaryngol Head Neck Surg, 2014 Dec;66(4):429-36.

PMID: 26396957 DOI: 10.1007/s12070-014-0745-z

The aim of this study is to assess the pneumatization of the paranasal sinuses (PNS) and other parts of temporal bone such as mastoid air cells and to investigate if there was any association between the aeration of these structures among the three major ethnic groups in Malaysia (Malay, Chinese, Indian) as this would be representative of Asia. A retrospective review of 150 computed tomography (CT) scans of PNS and temporal bones was done and analysed. The pneumatization of each area was obtained and compared using statistical analysis. Patients with a history of previous medical or surgical problems in the intended areas were excluded from the study. The pneumatization of the mastoid air cells and other temporal bone parts were noted to be symmetrical in more than 75 %. There was a positive correlation between the pneumatization of mastoid air cells and that of the sphenoid sinus. The prevalence of Agger nasi, Haller's and Onodi cells was observed to be significantly higher in the Chinese group. Preoperative assessment of the temporal bone and PNS with CT scan may be helpful in the evaluation of their anatomical landmark and decrease the possibility of surgical complications related to 3D structures.

Matched MeSH terms: Temporal Bone

Fulltext High grade mucoepidermoid carcinoma of the middle ear treated with extended temporal bone resection

Shailendra S, Elmuntser A, Philip R, Prepageran N

Med J Malaysia, 2008 Aug;63(3):247-8.

PMID: 19248700 MyJurnal

We report a case of High grade Mucoepidermoid carcinoma of the middle ear. A 67 year old gentleman was referred to our centre for persistent otalgia associated with facial weakness for four months. Examination revealed a middle ear mass with House Brackmann Grade 3 Facial Palsy and ipsilateral lymhadenopathy. Biopsies suggested a squamous cell carcinoma of the middle ear, and he successfully underwent an Extended Temporal bone resection with External canal reconstruction and neck dissection. Postoperative Histopathology revealed that the tumour was in fact a High Grade Mucoepidermoid carcinoma. He received postoperative radiotherapy and is well one year post operatively.

Matched MeSH terms: Temporal Bone/surgery*

Metastatic Adenocarcinoma of Temporal Bone with Collet-Sicard Syndrome

Subha ST, Nordin AJ

Iran J Otorhinolaryngol, 2018 Nov;30(101):361-364.

PMID: 30560103

Introduction: Metastatic tumors of the temporal bone are extremely rare. Collet-Sicard syndrome is an uncommon condition characterized by unilateral palsy of the lower four cranial nerves. The clinical features of temporal bone metastasis are nonspecific and mimic infections such as chronic otitis media and mastoiditis.

Case Report: This report describes a rare case of metastatic adenocarcinoma of the temporal bone causing Collet-Sicard syndrome, presenting with hearing loss, headache and ipsilateral cranial nerve palsies. The patient was a 68-year old woman initially diagnosed with extensive mastoiditis and later confirmed as having metastatic adenocarcinoma of the temporal bone, based on histopathologic findings.

Conclusion: Clinical presentation of metastatic carcinoma of the temporal bone can be overshadowed by infective or inflammatory conditions. This case report is to emphasize the point that a high index of clinical suspicion is necessary for the early diagnosis of this aggressive disease which carries relatively poor prognosis. This report highlights that it is crucial to suspect malignant neoplasm in patients with hearing loss, headache and cranial nerve palsies.

Matched MeSH terms: Temporal Bone

Zygomatic root abscess: A rare entity not to be forgotten!

Hong CX, Razuan NA, Alias A, Hassan FH, Nasseri Z

Auris Nasus Larynx, 2021 Aug;48(4):788-792.

PMID: 32513602 DOI: 10.1016/j.anl.2020.05.007

Zygomatic root abscess is a rare extracranial extratemporal complication of otitis media. To the best of our knowledge, there are only a few scattered cases of zygomatic root abscesses reported in the literature. We present an unusual case of a zygomatic root abscess in a 24 years old adult. He presented with one month duration of right zygomatic swelling. Otoscopic examination revealed superior and posterior external auditory canal wall sagging with an intact tympanic membrane. High Resolution Computed Tomography (HRCT) temporal bone revealed a rim enhancing lesion lateral to the zygomatic process with fluid filled mastoid air cells. He was managed with antibiotics and staged surgical interventions. He recovered well. Our case serves to shed light on the pathways of infection, clinical manifestations and timely staged surgical intervention in this rare pathology.

Matched MeSH terms: Temporal Bone

Fulltext The Correlation Between Pre and Postoperative Hearing Level with High Resolution Computed Tomography (HRCT) Findings in Congenital Canal Atresia (CAA) Patients

Asma A, Abdul Fatah AW, Hamzaini AH, Mazita A

Indian J Otolaryngol Head Neck Surg, 2013 Dec;65(Suppl 3):526-31.

PMID: 24427708 DOI: 10.1007/s12070-011-0438-9

In managing patient with congenital congenital aural atresia (CAA), preoperative high resolution computed tomography (HRCT) scan and hearing assessment are important. A grading system based on HRCT findings was first introduced by Jahrsdoefer in order to select appropriate candidates for operation and to predict the postoperative hearing outcome in CAA patients. The score of eight and more was considered as a good prognostic factor for hearing reconstruction surgery. However previously in our center this score was not used as the criteria for surgical procedure. This study was conducted at Center A to evaluate the correlation between pre and postoperative hearing level with HRCT based on a Jahrsdoefer grading system in patients with CAA. All records and HRCT films with CAA from January 1997 until December 2007 at Center A were evaluated. The demographic data, operative records, pre and post operative hearing levels and HRCT findings were analyzed. Hearing level in this study was based on a pure tone average of air-bone gap at 500 Hz, 1 kHz and 2 kHz or hearing level obtained from auditory brainstem response eudiometry. This study was approved by Research Ethics Committee (code number, FF-197-2008). Thirty-two ears were retrospectively evaluated. The postoperative hearing level of 30 dB and less was considered as successful hearing result postoperatively. Of the six ears which underwent canalplasty, three had achieved successful hearing result. However, there was no significant correlation between preoperative hearing level (HL) with HRCT score and postoperative HL with HRCT score at 0.05 significant levels (correlation coefficient = -0.292, P = 0.105 and correlation coefficient = -0.127, P = 0.810) respectively. Hearing evaluation and HRCT temporal bone are two independent evaluations for the patients with CAA before going for hearing reconstructive surgery.

Matched MeSH terms: Temporal Bone

Anomalous styloid process and its clinical implications

Das S, Suhaimi FH, Othman F, Latiff AA

Bratisl Lek Listy, 2008;109(1):31-3.

PMID: 18447260

In literature, there is paucity of information on the different shapes of styloid processes of the temporal bone of the skull. Textbooks of anatomy describe the styloid process to be slender, approximately 2.5 cm in length and concave on the anterior aspect only. In the present case, we observed the styloid process to be much longer than usual, bearing a concavity on the anterior, as well as the posterior aspects as a consequence of which, the bone was constricted in its proximal part. The mastoid process which is usually conical, was found to be rounded in this case. The length of the styloid process measured 2.8 and 2.7 cm on left and right sides, respectively. The skiagram displayed the biconcave profile of the styloid process and the rounded appearance of the mastoid process, thus substantiated the findings on gross examination of the skull. The anatomical knowledge of the mastoid process is important for surgeons assessing the mastoid air cells. The elongated styloid process is often a feature of Eagle's syndrome. An enlarged and calcified styloid process is often asymptomatic, unless detected radiologically. An abnormally elongated styloid process or its calcification may cause recurrent throat pain, foreign body sensation, dysphagia, or facial pain. An enlarged styloid process may also compress upon the internal carotid artery, leading to transient ischemic attack and may pose a threat to anesthetists performing intubation procedures. Awareness of such variations may be of clinical importance to radiologists and surgeons (Fig. 2, Ref. 11). Full Text (Free, PDF) www.bmj.sk.

Matched MeSH terms: Temporal Bone/abnormalities*

How I do it: an improved temporal bone holder

Gendeh BS, Gibb AG, Khalid BA

J Laryngol Otol, 1995 Jul;109(7):644-5.

PMID: 7561473

Although some form of temporal bone holder is in use in virtually all ENT postgraduate teaching departments, a paucity of information in the literature may cause problems in selecting the most appropriate model to those responsible for equipping temporal bone laboratories. The bone holder which we describe is based on existing designs but incorporates a built-in irrigation system which offers considerable advantages to the unassisted operator.

Matched MeSH terms: Temporal Bone*

Displaying publications 1 - 20 of 39 in total