The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Jacques J Morcos - One of the best experts on this subject based on the ideXlab platform.
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isolated unilateral hypoglossal nerve palsy secondary to an atlantooccipital joint juxtafacet Synovial Cyst
Journal of Neurosurgery, 2009Co-Authors: Mohamed Samy Elhammady, Hamad Farhat, Mohammad Ali Azizsultan, Jacques J MorcosAbstract:Juxtafacet Cysts of the atlantooccipital joint that present with isolated hypoglossal nerve palsy are rare and may mimic more common pathological entities. The authors report on the third such case in the literature and discuss the differential diagnosis, imaging hallmarks, preoperative recognition, and surgical management of this lesion, and provide a review of the literature. The authors discuss their experience with the treatment of a 67-year-old woman who presented with an isolated hypoglossal nerve palsy caused by a nonenhancing Cystic septated lesion abutting the lateral medulla just medial to the left hypoglossal canal. The lesion was presumed to be a necrotic hypoglossal schwannoma or epidermoid tumor. Intradural surgical exploration failed to demonstrate an intradural lesion, but confirmed the presence of an extradural mass caudal to the hypoglossal nerve. Extradural exploration revealed a Synovial Cyst of the atlantooccipital joint, which was then resected. Postoperatively, the patient developed worsening dysphagia and hoarseness. Failure to recognize this rare entity preoperatively resulted in unnecessary intradural exploration and cranial nerve morbidity. In retrospect, the preoperative diagnosis of this lesion was suggested by lack of central enhancement, absence of dumbbell formation and the presence of erosive Synovial changes. Regardless, the extreme rarity of this lesion at this location will always make its recognition challenging.
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isolated unilateral hypoglossal nerve palsy secondary to an atlantooccipital joint juxtafacet Synovial Cyst case report and review of the literature
Journal of Neurosurgery, 2009Co-Authors: Mohamed Samy Elhammady, Hamad Farhat, Mohammad Ali Azizsultan, Jacques J MorcosAbstract:Juxtafacet Cysts of the atlantooccipital joint that present with isolated hypoglossal nerve palsy are rare and may mimic more common pathological entities. The authors report on the third such case in the literature and discuss the differential diagnosis, imaging hallmarks, preoperative recognition, and surgical management of this lesion, and provide a review of the literature. The authors discuss their experience with the treatment of a 67-year-old woman who presented with an isolated hypoglossal nerve palsy caused by a nonenhancing Cystic septated lesion abutting the lateral medulla just medial to the left hypoglossal canal. The lesion was presumed to be a necrotic hypoglossal schwannoma or epidermoid tumor. Intradural surgical exploration failed to demonstrate an intradural lesion, but confirmed the presence of an extradural mass caudal to the hypoglossal nerve. Extradural exploration revealed a Synovial Cyst of the atlantooccipital joint, which was then resected. Postoperatively, the patient developed...
Mohamed Samy Elhammady - One of the best experts on this subject based on the ideXlab platform.
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isolated unilateral hypoglossal nerve palsy secondary to an atlantooccipital joint juxtafacet Synovial Cyst
Journal of Neurosurgery, 2009Co-Authors: Mohamed Samy Elhammady, Hamad Farhat, Mohammad Ali Azizsultan, Jacques J MorcosAbstract:Juxtafacet Cysts of the atlantooccipital joint that present with isolated hypoglossal nerve palsy are rare and may mimic more common pathological entities. The authors report on the third such case in the literature and discuss the differential diagnosis, imaging hallmarks, preoperative recognition, and surgical management of this lesion, and provide a review of the literature. The authors discuss their experience with the treatment of a 67-year-old woman who presented with an isolated hypoglossal nerve palsy caused by a nonenhancing Cystic septated lesion abutting the lateral medulla just medial to the left hypoglossal canal. The lesion was presumed to be a necrotic hypoglossal schwannoma or epidermoid tumor. Intradural surgical exploration failed to demonstrate an intradural lesion, but confirmed the presence of an extradural mass caudal to the hypoglossal nerve. Extradural exploration revealed a Synovial Cyst of the atlantooccipital joint, which was then resected. Postoperatively, the patient developed worsening dysphagia and hoarseness. Failure to recognize this rare entity preoperatively resulted in unnecessary intradural exploration and cranial nerve morbidity. In retrospect, the preoperative diagnosis of this lesion was suggested by lack of central enhancement, absence of dumbbell formation and the presence of erosive Synovial changes. Regardless, the extreme rarity of this lesion at this location will always make its recognition challenging.
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isolated unilateral hypoglossal nerve palsy secondary to an atlantooccipital joint juxtafacet Synovial Cyst case report and review of the literature
Journal of Neurosurgery, 2009Co-Authors: Mohamed Samy Elhammady, Hamad Farhat, Mohammad Ali Azizsultan, Jacques J MorcosAbstract:Juxtafacet Cysts of the atlantooccipital joint that present with isolated hypoglossal nerve palsy are rare and may mimic more common pathological entities. The authors report on the third such case in the literature and discuss the differential diagnosis, imaging hallmarks, preoperative recognition, and surgical management of this lesion, and provide a review of the literature. The authors discuss their experience with the treatment of a 67-year-old woman who presented with an isolated hypoglossal nerve palsy caused by a nonenhancing Cystic septated lesion abutting the lateral medulla just medial to the left hypoglossal canal. The lesion was presumed to be a necrotic hypoglossal schwannoma or epidermoid tumor. Intradural surgical exploration failed to demonstrate an intradural lesion, but confirmed the presence of an extradural mass caudal to the hypoglossal nerve. Extradural exploration revealed a Synovial Cyst of the atlantooccipital joint, which was then resected. Postoperatively, the patient developed...
Emerson L Gasparetto - One of the best experts on this subject based on the ideXlab platform.
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case report atlantoaxial Synovial Cyst causing isolated unilateral hypoglossal nerve paralysis
British Journal of Radiology, 2010Co-Authors: L Mendesaraujo, C Rangel, Romeu Cortes Domingues, Emerson L GasparettoAbstract:Cervical Synovial Cysts are rare entities that are, most of the time, asymptomatic. They can cause nerve root or spinal cord compression, especially when acute haemorrhage or a marked increase in size occurs. Isolated unilateral hypoglossal nerve paralysis caused by compression of its cisternal segment is also an extremely rare condition. We report the case of a 51-year-old woman who presented with dysarthria and tongue fasciculation. MRI revealed an atlantoaxial Synovial Cyst that extended cranially through the hypoglossal canal and compressed the fibres of the left XII nerve on its cisternal segment. To our knowledge, this is the first case report of XII nerve paralysis being caused by an atlantoaxial Synovial Cyst.
Mohammad Ali Azizsultan - One of the best experts on this subject based on the ideXlab platform.
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isolated unilateral hypoglossal nerve palsy secondary to an atlantooccipital joint juxtafacet Synovial Cyst
Journal of Neurosurgery, 2009Co-Authors: Mohamed Samy Elhammady, Hamad Farhat, Mohammad Ali Azizsultan, Jacques J MorcosAbstract:Juxtafacet Cysts of the atlantooccipital joint that present with isolated hypoglossal nerve palsy are rare and may mimic more common pathological entities. The authors report on the third such case in the literature and discuss the differential diagnosis, imaging hallmarks, preoperative recognition, and surgical management of this lesion, and provide a review of the literature. The authors discuss their experience with the treatment of a 67-year-old woman who presented with an isolated hypoglossal nerve palsy caused by a nonenhancing Cystic septated lesion abutting the lateral medulla just medial to the left hypoglossal canal. The lesion was presumed to be a necrotic hypoglossal schwannoma or epidermoid tumor. Intradural surgical exploration failed to demonstrate an intradural lesion, but confirmed the presence of an extradural mass caudal to the hypoglossal nerve. Extradural exploration revealed a Synovial Cyst of the atlantooccipital joint, which was then resected. Postoperatively, the patient developed worsening dysphagia and hoarseness. Failure to recognize this rare entity preoperatively resulted in unnecessary intradural exploration and cranial nerve morbidity. In retrospect, the preoperative diagnosis of this lesion was suggested by lack of central enhancement, absence of dumbbell formation and the presence of erosive Synovial changes. Regardless, the extreme rarity of this lesion at this location will always make its recognition challenging.
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isolated unilateral hypoglossal nerve palsy secondary to an atlantooccipital joint juxtafacet Synovial Cyst case report and review of the literature
Journal of Neurosurgery, 2009Co-Authors: Mohamed Samy Elhammady, Hamad Farhat, Mohammad Ali Azizsultan, Jacques J MorcosAbstract:Juxtafacet Cysts of the atlantooccipital joint that present with isolated hypoglossal nerve palsy are rare and may mimic more common pathological entities. The authors report on the third such case in the literature and discuss the differential diagnosis, imaging hallmarks, preoperative recognition, and surgical management of this lesion, and provide a review of the literature. The authors discuss their experience with the treatment of a 67-year-old woman who presented with an isolated hypoglossal nerve palsy caused by a nonenhancing Cystic septated lesion abutting the lateral medulla just medial to the left hypoglossal canal. The lesion was presumed to be a necrotic hypoglossal schwannoma or epidermoid tumor. Intradural surgical exploration failed to demonstrate an intradural lesion, but confirmed the presence of an extradural mass caudal to the hypoglossal nerve. Extradural exploration revealed a Synovial Cyst of the atlantooccipital joint, which was then resected. Postoperatively, the patient developed...
Hamad Farhat - One of the best experts on this subject based on the ideXlab platform.
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isolated unilateral hypoglossal nerve palsy secondary to an atlantooccipital joint juxtafacet Synovial Cyst
Journal of Neurosurgery, 2009Co-Authors: Mohamed Samy Elhammady, Hamad Farhat, Mohammad Ali Azizsultan, Jacques J MorcosAbstract:Juxtafacet Cysts of the atlantooccipital joint that present with isolated hypoglossal nerve palsy are rare and may mimic more common pathological entities. The authors report on the third such case in the literature and discuss the differential diagnosis, imaging hallmarks, preoperative recognition, and surgical management of this lesion, and provide a review of the literature. The authors discuss their experience with the treatment of a 67-year-old woman who presented with an isolated hypoglossal nerve palsy caused by a nonenhancing Cystic septated lesion abutting the lateral medulla just medial to the left hypoglossal canal. The lesion was presumed to be a necrotic hypoglossal schwannoma or epidermoid tumor. Intradural surgical exploration failed to demonstrate an intradural lesion, but confirmed the presence of an extradural mass caudal to the hypoglossal nerve. Extradural exploration revealed a Synovial Cyst of the atlantooccipital joint, which was then resected. Postoperatively, the patient developed worsening dysphagia and hoarseness. Failure to recognize this rare entity preoperatively resulted in unnecessary intradural exploration and cranial nerve morbidity. In retrospect, the preoperative diagnosis of this lesion was suggested by lack of central enhancement, absence of dumbbell formation and the presence of erosive Synovial changes. Regardless, the extreme rarity of this lesion at this location will always make its recognition challenging.
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isolated unilateral hypoglossal nerve palsy secondary to an atlantooccipital joint juxtafacet Synovial Cyst case report and review of the literature
Journal of Neurosurgery, 2009Co-Authors: Mohamed Samy Elhammady, Hamad Farhat, Mohammad Ali Azizsultan, Jacques J MorcosAbstract:Juxtafacet Cysts of the atlantooccipital joint that present with isolated hypoglossal nerve palsy are rare and may mimic more common pathological entities. The authors report on the third such case in the literature and discuss the differential diagnosis, imaging hallmarks, preoperative recognition, and surgical management of this lesion, and provide a review of the literature. The authors discuss their experience with the treatment of a 67-year-old woman who presented with an isolated hypoglossal nerve palsy caused by a nonenhancing Cystic septated lesion abutting the lateral medulla just medial to the left hypoglossal canal. The lesion was presumed to be a necrotic hypoglossal schwannoma or epidermoid tumor. Intradural surgical exploration failed to demonstrate an intradural lesion, but confirmed the presence of an extradural mass caudal to the hypoglossal nerve. Extradural exploration revealed a Synovial Cyst of the atlantooccipital joint, which was then resected. Postoperatively, the patient developed...