scholarly journals Huge Greater Superficial Petrosal Nerve Schwannoma with Intradural Peritumoral Cyst

2019 ◽  
Vol 122 ◽  
pp. 85-89
Author(s):  
Takaaki Ishikawa ◽  
Masahide Matsuda ◽  
Kazuki Sakakura ◽  
Eiichi Ishikawa ◽  
Hiroyoshi Akutsu ◽  
...  
Keyword(s):  
Greater Superficial Petrosal Nerve

scholarly journals Excision of Greater Superficial Petrosal Nerve Schwannoma Via a Pure Endoscopic Endonasal Approach

2021 ◽  
pp. 014556132110263
Author(s):  
Zhenlin Wang ◽  
Siyuan Zhang ◽  
Yan Qi ◽  
Lianjie Cao ◽  
Pu Li ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Clinical Features ◽  
Middle Cranial Fossa ◽  
Nerve Sheath Tumor ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Endoscopic Endonasal ◽  
Greater Superficial Petrosal Nerve ◽  
Clinical Records

Greater superficial petrosal nerve (GSPN) schwannomas are an exceedingly rare nerve sheath tumor. The current literature search was conducted using Medline and Embase database by key search terms. Only 31 cases have been reported in the literature so far. Facial palsy, hearing loss, and xerophthalmia accounted for 48.4% (15), 41.9% (13), and 29% (9) of all cases, respectively. The middle cranial fossa approach was used in all previous reports. A retrospective review of 2 GSPN schwannomas patients treated by endoscopic endonasal approach (EEA) in our center was collected. Clinical records, including clinical features, pre- and postoperative images, surgery, and follow-up information, were reviewed. In all cases, clinical features including facial numbness and headache were found, with tinnitus in case 1, hearing loss, xerophthalmia in case 2. Imaging studies showed a solid mass that originated in the anterior of the petrous bone. Two patients were treated by EEA. Furthermore, no recurrence was found during the follow-up period (15-29 months) in both of the 2 cases after the operation. Complete resection of GSPN schwannomas can be achieved via the pure EEA. Endoscopic endonasal approach for radical removal of tumors is safe and feasible.

Greater superficial petrosal nerve schwannoma

2005 ◽  
Vol 147 (6) ◽  
pp. 659-663 ◽  
Author(s):  
A. Schmidinger ◽  
W. Deinsberger
Keyword(s):  
Greater Superficial Petrosal Nerve

Schwannoma of the Greater Superficial Petrosal Nerve: An Unusual Site for a Common Tumor

2020 ◽  
Vol 81 (06) ◽  
pp. 565-570
Author(s):  
Alok Mohan Uppar ◽  
Shilpa Rao ◽  
Chandrajit Prasad ◽  
Arivazhagan Arimappamagan ◽  
Vani Santosh
Keyword(s):  
Facial Nerve ◽  
Rare Case ◽  
Literature Search ◽  
English Literature ◽  
Clinical Spectrum ◽  
Small Subset ◽  
Rare Clinical Entity ◽  
Review Of The Literature ◽  
Unusual Site ◽  
Greater Superficial Petrosal Nerve

AbstractGreater superficial petrosal nerve (GSPN) schwannoma is a rare clinical entity. It forms a small subset of the larger group of facial nerve schwannomas. A thorough literature search yielded only 27 such cases reported to date in the English literature. We present one such rare case of GSPN schwannoma and discuss the clinical spectrum and management along with a review of the literature. We demonstrate the surgical steps in an operative video.

CELLULAR SCHWANNOMA OF THE GREATER SUPERFICIAL PETROSAL NERVE PRESENTING WITH ABDUCENS NERVE PALSY AND XEROPHTHALMIA

Neurosurgery ◽  
2008 ◽  
Vol 63 (4) ◽  
pp. E813-E814 ◽  
Author(s):  
Giyas Ayberk ◽  
Mehmet F. Ozveren ◽  
Nuket Uzum ◽  
Ozgur Tosun ◽  
Emine K. Akcay
Keyword(s):  
Nerve Palsy ◽  
Abducens Nerve ◽  
Abducens Nerve Palsy ◽  
Petrous Apex ◽  
Clinical Prognosis ◽  
Tear Secretion ◽  
Pathological Evaluation ◽  
Greater Superficial Petrosal Nerve ◽  
Extradural Approach ◽  
The Right

ABSTRACT OBJECTIVE Cellular schwannomas (CS) are rare in the cranial space. This report is the first of a patient with a greater superficial petrosal nerve CS presenting with abducens nerve palsy and xerophthalmia. CLINICAL PRESENTATION A 16-year-old female patient presented with a 1-month history of diplopia. Neurological examination was normal except for the presence of right abducens nerve palsy. Schirmer's test revealed decreased tear secretion in the right eye. Computed tomography and magnetic resonance imaging showed a mass in the right petrous apex. It was thought that the schwannoma in our patient originated from the greater superficial petrosal nerve, based on the location of the tumor in addition to the absence of partial Horner's syndrome and a persistent decrease in tear secretion. INTERVENTION: The tumor was exposed with the use of a right subtemporal extradural approach and removed entirely. Pathological evaluation of the tumor revealed a CS. CONCLUSION The abducens nerve palsy improved completely in the follow-up period, but the decreased tear secretion did not resolve. CS is one of the subtypes of ordinary schwannomas and exhibits malignant features on microscopic examination, although it has a good clinical prognosis. No adjuvant treatment was applied because of the tumor's benign character. The greater superficial petrosal nerve schwannoma should be considered in the differential diagnosis of the abducens nerve palsy and petrous apex mass.

Vasodilator system for the face

1975 ◽  
Vol 42 (6) ◽  
pp. 696-703 ◽  
Author(s):  
Guillermo Gonzalez ◽  
Burton M. Onofrio ◽  
Frederick W. L. Kerr
Keyword(s):  
Brain Stem ◽  
Trigeminal Ganglion ◽  
Content Type ◽  
Moderate Number ◽  
Trigeminal Nuclei ◽  
The Face ◽  
Greater Superficial Petrosal Nerve ◽  
Radiofrequency Coagulation ◽  
The Brain ◽  
Stimulation Of

✓ The authors describe investigations in cats to delineate a vasodilator system to the face, which they undertook after a previous study showed that radiofrequency coagulation of the trigeminal ganglion produced a pronounced flush in the skin of the corresponding division. Results demonstrate a vasodilator system emerging from the brain stem with the facial nerve which, by way of the greater superficial petrosal nerve, reaches the trigeminal ganglion. There the fibers are distributed to each of the divisions of the fifth nerve; in addition, a moderate number of vasodilator fibers also appear to leave the brain stem directly with the trigeminal nerve. Vasodilator effects were elicited by stereotaxic stimulation of the facial and trigeminal nuclei in the brain stem. There is, therefore, a dual vasomotor control of the facial cutaneous vascular bed; the classical sympathetic vasoconstrictor system of the face is complemented by a vasodilator system capable of producing changes of equal but opposite amplitude in vessel caliber.

Course of the Peripheral Gustatory Nerves

1977 ◽  
Vol 86 (2) ◽  
pp. 251-258 ◽  
Author(s):  
Heinz Rollin
Keyword(s):  
Facial Nerve ◽  
Medulla Oblongata ◽  
Trigeminal Nerve ◽  
Soft Palate ◽  
Cranial Nerve ◽  
Anterior Part ◽  
Posterior Part ◽  
Greater Superficial Petrosal Nerve ◽  
The Brain

The multiple variations of the course of the gustatory nerves still considered possible are discussed. Recent investigations lead to the conclusion that there is only one path for the gustatory fibers for each gustatory area: 1) from the anterior part of the tongue via the tympanic cord and facial nerve to the medulla oblongata; 2) for the posterior part of the tongue in the IX cranial nerve; and 3) from the soft palate via the greater superficial petrosal nerve to the facial nerve. The trigeminal nerve carries no gustatory fibers to the brain.

scholarly journals Middle Fossa Approach for Resection of an Intracanalicular Vestibular Schwannoma

2019 ◽  
Vol 80 (S 03) ◽  
pp. S287-S287
Author(s):  
Walter C. Jean ◽  
Kyle Mueller ◽  
H. Jeffrey Kim
Keyword(s):  
Facial Nerve ◽  
Vestibular Schwannoma ◽  
Middle Cranial Fossa ◽  
Petrous Bone ◽  
Middle Fossa ◽  
Middle Fossa Approach ◽  
Nerve Preservation ◽  
Greater Superficial Petrosal Nerve ◽  
Cranial Fossa ◽  
Video Case Report

Objective This video was aimed to demonstrate the middle fossa approach for the resection of an intracanalicular vestibular schwannoma. Design Present study is a video case report. Setting The operative video is showing a microsurgical resection. Participant The patient was a 59-year-old man who presented with worsening headache and right-side hearing loss. He was found to have a right intracanalicular vestibular schwannoma. After weighing risks and benefits, he chose surgery to remove his tumor. Since his hearing remained “serviceable,” a middle fossa approach was chosen. Main Outcome Measures Pre- and postoperative patient photographs evaluated the muscles of facial expression as a marker for facial nerve preservation. Results A right middle fossa craniotomy was performed which allowed access to the floor of the middle cranial fossa. The greater superficial petrosal nerve (GSPN) and arcuate eminence were identified. Using these two landmarks, the internal acoustic canal (IAC) was localized. After drilling the petrous bone, the IAC was unroofed. The facial nerve was identified by stimulation and visual inspection and the tumor was separated from it with microsurgical dissection. In the end, the tumor was fully resected. Both the facial and cochlear nerves were preserved. Postoperatively, the patient experienced no facial palsy and his hearing is at baseline. Conclusion With radiosurgery gaining increasing popularity, patients with intracanalicular vestibular schwannomas are frequently treated with it, or are managed with observation. The middle fossa approach is therefore becoming a “lost art,” but as demonstrated in this video, remains an effective technique for tumor removal and nerve preservation.The link to the video can be found at: https://youtu.be/MD6o3DF6jYg.

Usefulness of facial nerve monitoring for confirmation of greater superficial petrosal nerve in anterior transpetrosal approach

2014 ◽  
Vol 156 (10) ◽  
pp. 1847-1852 ◽  
Author(s):  
Ryosuke Tomio ◽  
Takenori Akiyama ◽  
Takayuki Ohira ◽  
Tomo Horikoshi ◽  
Kazunari Yoshida
Keyword(s):  
Facial Nerve ◽  
Nerve Monitoring ◽  
Anterior Transpetrosal Approach ◽  
Facial Nerve Monitoring ◽  
Greater Superficial Petrosal Nerve
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