Usefulness of Image Guidance in the Surgical Treatment of Petrous Apex Cholesterol Granuloma
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چکیده
منابع مشابه
Usefulness of Image Guidance in the Surgical Treatment of Petrous Apex Cholesterol Granuloma
The petrous apex is a pyramid-shaped structure, located medial to the inner ear and the intrapetrous segment of the internal carotid artery. Lesions of the petrous apex can be surgically treated through different surgical routes. Because of the important neurovascular structures located inside the temporal bone, anatomical 3D knowledge is paramount. For this reason, image-guided surgery could r...
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A 43years old man presented with 6 month history of intermittent right hemicranial headache and ipsilateral conductive hearingloss. The patient had no historyof head trauma. The MRI demonstrated a large and expansile right petrous apex lesion hyper intense on both T1and T2-weighted scans, without diffusion restriction or internal contrast enhancement. The CT scan showed and expansile and lyticl...
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We reviewed the clinical, CT, and MR findings in seven consecutive patients who had a total of nine cholesterol granulomas. Preoperative MR scans were available for five of the seven patients; two patients were studied with MR after treatment only (one had a recurrent lesion and the other was asymptomatic at the time of study). Preoperative CT scans were available for all patients, except one p...
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Submit Manuscript | http://medcraveonline.com characterized for having a cystic pattern containing cholesterol crystals that are usually surrounded by foreign body giant cells. Their growing pattern is very variable and it is related to the frequency and severity of the micro hemorrhages happening within. It can be found in different locations in the temporal bone such as in the petrous apex (P...
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Herein, we report a patient who had an isolated sixth nerve palsy due to a petrous apex cholesterol granuloma. The sixth nerve palsy appeared acutely and then spontaneously resolved over several months, initially suggesting a microvascular origin of the palsy. Subsequent recurrences of the palsy indicated a different pathophysiologic etiology and MRI revealed the lesion at the petrous apex. Sur...
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ژورنال
عنوان ژورنال: Case Reports in Otolaryngology
سال: 2013
ISSN: 2090-6765,2090-6773
DOI: 10.1155/2013/257263