1.Response To Dr. Tang Letter to Editor: Inconspicuous Nasoethmoidal Encephalocele Might Be Wrongly Diagnosed.
Archives of Plastic Surgery 2016;43(3):292-292
No abstract available.
Encephalocele*
2.Inconspicuous Nasoethmoidal Encephalocele Might Be Wrongly Diagnosed.
Weng Jun TANG ; Wan Azman WAN SULAIMAN
Archives of Plastic Surgery 2016;43(3):291-292
No abstract available.
Encephalocele*
3.Enlarged parietal foramina presenting as scalp swelling in an infant
Chidambaram Viswanath Anand ; Hamouda Ehab Shaban Mahmoud
The Medical Journal of Malaysia 2015;70(4):263-264
“Enlarged parietal foramina” is a congenital malformation
with autosomal dominant inheritance. The condition is
usually self-limiting and doesn’t require any treatment.
However, it may also be associated with encephalocele,
vascular anomalies or may be a part of syndrome. We
present a case of enlarged parietal foramina in a child and
discuss its imaging findings and the associated intracranial
vascular malformations.
Encephalocele
4.Atretic Cephaloceles: Report of 3 Cases.
Byung Jun LEE ; Sung Kyoo HWANG ; Yoon Kyung SOHN ; Seung Lae KIM
Journal of Korean Neurosurgical Society 1995;24(12):1548-1553
Atretic cephalocele is a rare congenital cranial anomaly. We have experienced 3 cases of atretic cephalocele at the Department of Neurosurgery, Kyungpook University Hospital between 1990 and 1993. Clinical features, operative considerations, and outcome are discussed.
Encephalocele*
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Gyeongsangbuk-do
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Neurosurgery
5.Post-operative temporal lobe encephalocele
Ian C. Bickle ; Fakrudin Salim
Philippine Journal of Otolaryngology Head and Neck Surgery 2018;33(1):56-57
This 24-year-old woman presented to ENT outpatients with an enlarging swelling in the right external auditory canal. A radical mastoidectomy for chronic suppurative otitis media with cholesteatoma had previously been undertaken at another institution. On clinical examination there was an otologic mass that was tender on probing.
High resolution imaging of the temporal bones and a subsequent MRI brain confirmed the mass was a temporal lobe encephalocele.
A temporal lobe encephalocele is where a segment of the temporal lobe invaginates through a defect in the tegmen tympani. The brain is separated from the middle ear and mastoid process by an exceptionally thin layer of bone – the tegmen tympani. Damage to the tegmen compromises the barrier with the brain and may occur for a number of reasons. This includes congenital, traumatic, post-infectious, malignant invasion, post-radiation therapy and post-surgical causes.1 When this occurs the brain may extrude through the defect resulting in a temporal lobe encephalocele.
A bony defect alone, whatever the cause, is insufficient to always result in an encephalocele. Even with dehiscence of the tegmen the dura is capable of supporting the brain issue without herniation. Only when the integrity of the dura is compromised does an encephalocele occur.2 This may be due to the underlying disease process (such as cholesteatoma causing an intracranial abscess) or both purposeful (opening dura to drain an adjacent intracranial abscess) /non-purposeful surgical intervention. Mainstream microsurgical techniques however have lowered the incidence of dural violation.3
Historically, infection was a major cause, but with the ready availability of antibiotics and prompt management, the key contemporary cause is iatrogenic, following mastoid surgery. However, the overall incidence is uncommon following otologic surgery. In a review of 25 years of middle ear/mastoid encephalocele cases 77% were identified to be iatrogenic in origin.4
This patient presented with the finding of a mass observed in the external auditory canal. Less common findings at attendance include tympanic perforation, cholesteatoma, otorrhoea and meningitis.4
The key to diagnosis hinges on cross-sectional imaging: combined imaging with CT to assess the osseous structures and MRI for soft tissue review. The high-resolution CT (HRCT) of the temporal bones illustrates a large defect in the right tegmen tympani with a large soft tissue lesion occupying the post-surgical mastoid cavity abutting the tympanic membrane. (Figures 1A, B) The defect of 15mm in the tegmen was more than double the average of 7.2mm reported elsewhere.4 The MRI confirms the defect in the tegmen with the protrusion of a knuckle of the right temporal lobe and its overlying meninges through the defect into the mastoid cavity. The dumb-bell appearance is typical with the narrower neck at the site of the tegmental dehiscence. The extruded brain occupies the post-operative middle ear cavity. (Figures 2 A, B and C) The defect size and volume of herniated brain can be accurately assessed, both of which may be key determinates of the type of surgical procedure.
Revision mastoidectomy with repair of the tegmen defect and dural integrity using a combined intracranial-mastoid approach is planned as a joint case with neurosurgical colleagues.
Encephalocele
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Jaw Abnormalities
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Facial Bones
6.The characteristics of CT images of encephalocele
Journal of Practical Medicine 2003;450(4):22-24
At Bach Mai Hospital, CT of 230 cases of showed the images of encephalocele. In the trauma group, the unilateral damage of hemisphere cerebral was mainly in fronto-temporal lobe, and chronic damage. In the cases of bleeding due to cerebrovascular complications, the occuping volume of blood glott or the cerebral edema volume increased leading to severe encephalocele and ebullient symptoms. Tumor occuping largely leads to difficult immobilging, there fore the image could not be restored and surgical intervention becomes more difficult. Metastasis tumors cause a lorge edema in the brain, encephalocele becomes acute possibly leading to death
Encephalocele
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Image Processing, Computer-Assisted
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Brain
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7.The characteristics of CT images of encephalocele
Journal of Practical Medicine 2003;450(4):24-26
30 eyes of 28 patients (18 female, 10 male, aged 45-75) of primary glaucoma (25 eyes with closed angle glaucoma and 5 eyes with opened angle glaucoma) at the National Institute of Ophtalmology were operated. No complications occurred. In postoperative period, there were 4 eyes with low interocular pressure and very shallow vestibule. In discharge, 46.6% eyes got a visual acuity of 4/10 to >6/10, and 13.3% <1/10, interocular pressure was regulated with X=18.20.8 mmHg. All operated eyes had scars. After 1 year, acuity visual had been re-examined on 28 eyes, no change of visual acuity, vision field and scars. Interoculary pressure was normal level of X=19.61.2 mmHg
Encephalocele
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Image Processing, Computer-Assisted
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Brain
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8.A Case of Median Cleft Face Syndrome.
Kyeong Hee SUH ; Dae Chul JEONG ; Jae Kyun HUR ; Chang Kyu OH
Journal of the Korean Pediatric Society 2000;43(4):583-587
Median cleft face syndrome is diagnosed by two or more of the following anomalies : ocular hypertelorism, cranium bifidum occultum, median cleft nose, median cleft lip and median cleft premaxilla. The most consistent and prominent ocular finding associated with this syndrome is hypertelorism. We experienced a case of median cleft face syndrome which had orbital hypertelorism, cranium bifidum occultum, bifid cleft nose, V-shaped frontal hairline, and polysyndactly. We report this case with a brief review of the associated literature.
Cleft Lip
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Encephalocele
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Hypertelorism
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Nose
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Orbit
9.Pituitary Adenoma Accompanying Sphenoidal Meningoencephalocele with Clival Extension.
Tae Joon KIM ; Choong Hyun KIM ; Jin Hwan CHEONG ; Jae Min KIM
Journal of Korean Neurosurgical Society 2005;38(3):242-244
Encephaloceles are known as rare craniofacial developmental anomalies which are herniation of cranial contents through a skull defect. Sphenoidal meningoencephalocele represents an important cause of reVersible visual loss. We report a rare case of pituitary adenoma accompanying sphenoidal meningoencephalocele with clival extension. Although the definitive diagnosis of cystic lesions in the sellar region before surgery is difficult, accurate diagnosis of these lesions is important to determine the type of treatment and predict prognostic outcome.
Craniofacial Abnormalities
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Diagnosis
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Encephalocele
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Pituitary Neoplasms*
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Skull
10.Pituitary Adenoma Accompanying Sphenoidal Meningoencephalocele with Clival Extension.
Tae Joon KIM ; Choong Hyun KIM ; Jin Hwan CHEONG ; Jae Min KIM
Journal of Korean Neurosurgical Society 2005;38(3):242-244
Encephaloceles are known as rare craniofacial developmental anomalies which are herniation of cranial contents through a skull defect. Sphenoidal meningoencephalocele represents an important cause of reVersible visual loss. We report a rare case of pituitary adenoma accompanying sphenoidal meningoencephalocele with clival extension. Although the definitive diagnosis of cystic lesions in the sellar region before surgery is difficult, accurate diagnosis of these lesions is important to determine the type of treatment and predict prognostic outcome.
Craniofacial Abnormalities
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Diagnosis
;
Encephalocele
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Pituitary Neoplasms*
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Skull