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Infratemporal fossa

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https://www.readbyqxmd.com/read/29135804/surgical-management-of-tumors-involving-meckel-s-cave-and-cavernous-sinus-role-of-an-extended-middle-fossa-and-lateral-sphenoidectomy-approach
#1
Daniel Q Sun, Arnold H Menezes, Matthew A Howard, Bruce J Gantz, David M Hasan, Marlan R Hansen
OBJECTIVE: To study the indications and outcomes of lateral sphenoidectomy as part of a combined skull base approach in the treatment of tumors involving Meckel's cave (MC) and cavernous sinus (CS). STUDY DESIGN: Retrospective patient series. SETTING: Tertiary referral center. PATIENTS: Twenty-two consecutive patients (mean age: 45 yr, range: 16-76) who underwent transzygomatic, extended middle fossa approaches for tumors involving MC and CS...
November 13, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29104153/anatomical-study-of-the-extracranial-needle-trajectory-using-the-hartel-technique-for-percutaneous-treatment-of-trigeminal-neuralgia
#2
Joe Iwanaga, Filippo Badaloni, Tyler Laws, Rod J Oskouian, R Shane Tubbs
OBJECTIVE: The aim of this study was to describe the anatomical trajectory of the extracranial needle for percutaneous rhizotomy and correlate this with structures at risk during such a procedure. METHODS: Six sides from three frozen fresh Caucasian heads were used in this study. Hartel's anatomic landmarks for percutaneous trigeminal rhizotomy procedures were used. A free hand technique was then used and intraprocedural visualization of the needle performed with fluoroscopy...
November 2, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29053047/perineural-spread-of-basosquamous-carcinoma-to-the-orbit-cavernous-sinus-and-infratemporal-fossa
#3
Alec L Amram, William J Hertzing, Stacy V Smith, Patricia Chévez-Barrios, Andrew G Lee
Basosquamous carcinoma is a rare, highly aggressive variant of basal cell carcinoma with elevated rates of recurrence, perineural invasion, and metastasis. We describe a patient who presented with unilateral complete ophthalmoplegia, ptosis, optic neuropathy, and trigeminal neuropathy due to perineural intracranial invasion of nasal basosquamous carcinoma via the sphenopalatine fossa to the cavernous sinus, orbit, and infratemporal fossa. To our knowledge, this is the first reported case of basosquamous carcinoma with perineural invasion involving the cavernous sinus in the English language ophthalmic literature...
October 20, 2017: Orbit
https://www.readbyqxmd.com/read/29026931/imaging-patterns-of-rhino-orbital-cerebral-mucormycosis-in-immunocompromised-patients-when-to-suspect-complicated-mucormycosis
#4
Peter Raab, Ludwig Sedlacek, Stefanie Buchholz, Stefan Stolle, H Lanfermann
PURPOSE: The aim of this study was to describe radiological imaging findings of a complicated sinusitis, which should raise the suspicion of rhino-orbital-cerebral mucormycosis as being the underlying cause. METHODS: In this retrospective analysis, we describe the cases and imaging findings of 8 patients with proven mucormycosis. These patients presented mostly with new facial or orbital swelling and were referred for imaging to our institution. Magnetic resonance imaging and computed tomography images were classified as abnormal or normal with respect to orbital, paranasal and cerebral signal results...
October 12, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29025773/erdheim-chester-disease-atypical-presentation-of-a-rare-disease
#5
Cristian Ricardo Calandra, Ariel Bustos, Florencia Falcon, Naomi Arakaki
We report the clinical case of an adult patient referred to our hospital because of trismus due to a tumour in the right infratemporal and pterygomaxillary fossa. He referred hyporexia, weight loss and right trigeminal neuralgia. On physical examination, he had trismus and diplopia. On neuroimaging, the tumour invaded the central nervous system affecting the right temporal lobe and orbit, and the sellar region. Tumour biopsy revealed foamy histiocytes and isolated giant multinuclear cells immunoreactive to CD68 and negative to CD1a and S100...
October 11, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29022963/tuberculous-osteomyelitis-of-orbit-a-case-report
#6
Chandana Chakraborti, Krittika Pal Choudhury, Jayanta Das
BACKGROUND: Orbital tuberculosis is a rare manifestation of extrapulmonary tuberculosis. We report an interesting case of osteomyelitis of orbital bone in an Indian child. CASE REPORT: A 9- year old girl presented with a gradually increasing painless swelling of left upper lid and blepharoptosis along with swelling of left side of forehead for last two months. The swelling was soft, fluctuating and non-tender. Diagnostic tap revealed thick pus which prompted us to do an incisional drainage of the abscess...
January 2017: Nepalese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28990793/leiomyosarcoma-of-the-infratemporal-fossa-with-perineurial-spread-along-the-right-mandibular-nerve-a-case-report
#7
Frank J Barbiero, Anita J Huttner, Benjamin L Judson, Joachim M Baehring
Leiomyosarcomas are malignant tumors displaying strong smooth muscle differentiation [ 1 ]. They can often develop within the GI tract and myometrium, but are particularly rare in the head and neck [ 2 , 3 ]. Perineurial spread of head and neck cancer is observed in patients with neoplasms of the skin (squamous cell carcinoma, melanoma) or skin appendages (adenoid cystic carcinoma) [ 4-6 ]. We report the case of a woman who presented with diplopia and headaches. MRI showed an infratemporal mass lesion and faint enhancement tracking along the mandibular nerve into the wall of the right cavernous sinus...
October 9, 2017: CNS Oncology
https://www.readbyqxmd.com/read/28989829/bony-hyperostosis-recurrence-after-complete-resection-of-sphenoorbital-meningioma
#8
Gmaan Alzhrani, William Couldwell
Bony hyperostosis is commonly associated with meningioma growth and is considered one of the characteristic signs on imaging; however, recurrence of meningiomas in the sphenoorbital area, including associated hyperostosis, is typically precluded by gross total resection of the lesion. This 63-year-old man presented with progressive double vision and proptosis in the right eye. He underwent frontotemporal craniotomy and partial removal after magnetic resonance imaging demonstrated a right sphenoorbital meningioma extending to the orbit and middle fossa...
August 4, 2017: Curēus
https://www.readbyqxmd.com/read/28984806/petrous-apex-cholesterol-granulomas-outcomes-complications-and-hearing-results-from-surgical-and-wait-and-scan-management
#9
Golda Grinblat, Ashish Vashishth, Francesco Galetti, Antonio Caruso, Mario Sanna
OBJECTIVE: 1. To analyze the surgical outcomes in the management of petrous apex cholesterol granulomas (PACG) with a brief literature review.2. To evaluate the importance of wait-and-scan management option. STUDY DESIGN: Retrospective review. SETTING: Quaternary referral center for otology and skull base surgery. SUBJECTS AND METHODS: Charts of 55 patients with at least 12 months of follow-up were analyzed for demographic, clinical, audiometric, and radiological features...
December 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28927217/surgical-technique-for-high-flow-internal-maxillary-artery-to-middle-cerebral-artery-bypass-using-a-superficial-temporal-artery-interposition-graft
#10
Xuequan Feng, Ali Tayebi Meybodi, Jordina Rincon-Torroella, Ivan H El-Sayed, Michael T Lawton, Arnau Benet
BACKGROUND: Extracranial-to-intracranial high-flow bypass often requires cranial, cervical, and graft site incisions. The internal maxillary artery (IMA) has been proposed as a donor to decrease invasiveness, but its length is insufficient for direct intracranial bypass. We report interposition of a superficial temporal artery (STA) graft for high-flow IMA to middle cerebral artery (MCA) bypass using a middle fossa approach. OBJECTIVE: To assess the feasibility of an IMA-STA graft-MCA bypass using a new middle fossa approach...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28922880/a-side-door-to-meckel-s-cave-anatomic-feasibility-study-for-the-lateral-transorbital-approach
#11
Blake Harrison Priddy, Cristian Ferrareze Nunes, Andre Beer-Furlan, Ricardo Carrau, Iacopo Dallan, Daniel Monte-Serrat Prevedello
BACKGROUND: In the last decade, endoscopic skull base surgery has significantly developed and generated a plethora of techniques and approaches for access to the cranial ventral floor. However, the exploration for the least-aggressive, maximally efficient approach continues. OBJECTIVE: To describe in detail an anatomical study, along with the technical nuances of a novel endoscopic approach to Meckel's Cave (MC) using a lateral transorbital (LTO) route. METHODS: Eighteen orbits of injected cadaveric specimens were operated on, using an endoscopic LTO approach to MC, middle cranial fossa, and paramedian skull base preserving the orbital rim...
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28888478/mandibular-coronoidectomy-could-significantly-accelerate-the-healing-process-of-infratemporal-fossa-abscess
#12
Yi-Wen Liu, Krishna Prasad Regmi, Ming-Chao Ding, Yan Li, Lei Tian, Bo-Lei Cai
PURPOSE: Management of an infratemporal fossa abscess (IFA), which is a specific form of severe and advanced deep fascial space infection (DFI), is based mainly on traditional methods. The purpose of this study was to investigate the role of mandibular coronoidectomy in accelerating IFA healing. PATIENTS AND METHODS: This research is a single-center retrospective study composed of 23 patients with IFA. The predictor variables were gender, age, diabetes, severity score, and mandibular coronoidectomy...
August 17, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28868610/examination-of-foramen-tympanicum-cone-beam-computed-tomograpyh-anatomical-study
#13
Yeşim Deniz, Gediz Geduk, Ayşe Zeynep Zengin
BACKGROUND: The foramen of tympanicum is an osseous dehiscence of the temporal bone and usually close by the age of 5 years. The foramen is located posteromedial to the temporomandibular joint and anteroinferior of the external auditory canal. The aim of this study is to define prevalence, location and size of the foramen. MATERIALS AND METHODS: We retrospectively examined 200 cone beam computed tomography images (400 ears). We used a CBCT dental imaging system (GALİLEOS, Sirona Dental Systems, Bensheim, Germany) working at 15-30 mA and 98 kV...
September 4, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28868197/combined-simultaneous-transcranial-and-endoscopic-endonasal-resection-of-sphenoorbital-meningioma-extending-into-the-sphenoid-sinus-pterygopalatine-fossa-and-infratemporal-fossa
#14
Masahide Matsuda, Hiroyoshi Akutsu, Shuho Tanaka, Akira Matsumura
BACKGROUND: Sphenoorbital meningiomas are surgically challenging because of their nature to extend to adjacent structures. Here, we describe a case of recurrent sphenoorbital meningioma extending into the sphenoid sinus, pterygopalatine fossa, and infratemporal fossa, which was resected using combined simultaneous transcranial and endoscopic endonasal approaches. CASE DESCRIPTION: A 62-year-old man who had 15 years earlier undergone partial resection of a left sphenoorbital meningioma presented with a 1-year history of progressive proptosis of the left eye...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28863880/plasma-cell-granuloma-of-the-jaw-and-the-infratemporal-fossa-a-clinical-case
#15
Amir Vahedi, Antoine Moya-Plana, Sylvie Guyot, Gaoussou Touré
Plasma cell granuloma or inflammatory pseudotumor (IPT) is diagnosed by a process of elimination. The precise etiology is unknown, although it can occur after a bout of periodontal infection. This report describes the various stages of progression for this ailment. A 49-year-old woman with no noteworthy medical history presented with a recurrent periodontal abscess accompanied by progressive and severe destruction of the right maxilla. There was invasion of the infratemporal fossa and very tight trismus. Histologic examination indicated a reactive plasma cell granuloma...
August 5, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28863111/the-endoscopic-prelacrimal-recess-approach-to-the-pterygopalatine-fossa-and-infratemporal-fossa
#16
Li Gao, Lei Zhou, Zhengshou Dai, Xinsheng Huang
PURPOSE: The authors studied the anatomic importance of the endoscopic prelacrimal recess approach (PLRA) to the pterygopalatine fossa (PPF) and infratemporal fossa (ITF). METHODS: Ten adult heads (20 sides) from cadavers fixed in formalin were dissected using the PLRA. Anatomic dissections were detailed and several crucial landmarks measured. RESULTS: Identification of the infraorbital neurovascular bundle is the crucial step for the detection of other branches of the maxillary artery...
September 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28845040/surgical-anatomy-for-the-endoscopic-endonasal-approach-to-the-ventrolateral-skull-base
#17
Kenichi Oyama, Shigeyuki Tahara, Toshio Hirohata, Yudo Ishii, Daniel M Prevedello, Ricardo L Carrau, Sebastien Froelich, Akira Teramoto, Akio Morita, Akira Matsuno
The authors describe the surgical anatomy for the endoscopic endonasal approach (EEA) to the ventrolateral skull base. The ventrolateral skull base can be divided into two segments: the upper lateral and lower lateral skull base. The upper lateral skull base includes the cavernous sinus and the orbit, while the lower lateral skull base includes the petrous apex, Meckel's cave, parapharyngeal space, infratemporal fossa, etc. To gain access to the upper lateral skull base, a simple opening of the ethmoid sinus provides sufficient exposure of this area...
October 15, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28796082/the-first-reported-case-of-primary-intestinal-type-adenocarcinoma-of-the-middle-ear-and-review-of-the-literature
#18
Marc-Elie Nader, Diana Bell, Lawrence Ginsberg, Franco DeMonte, G Brandon Gunn, Paul W Gidley
OBJECTIVE: Adenocarcinoma of the middle ear is a rare entity that must be distinguished from other adenomatous tumors of the temporal bone. We present the first patient of an intestinal-type adenocarcinoma originating from the middle ear. PATIENTS: A 58-year-old woman presented with an 8-year history of left otorrhea. Her middle ear effusions were quite thick and gummy. She underwent eight sets of pressure-equalization tubes within 3 years. In 2011, her physical examination identified a middle ear mass, and she underwent mastoidectomy...
October 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28766912/measurement-of-the-zygomatic-region-for-the-optimal-placement-of-quad-zygomatic-implants
#19
Kuo-Feng Hung, Qi-Yong Ai, Sheng-Chi Fan, Feng Wang, Wei Huang, Yi-Qun Wu
BACKGROUND: The zygomatic implant is suggested to be placed in zygomatic areas with the largest thickness, but regions to obtain the largest bone-to-implant contact (BIC) were unknown. PURPOSE: To identify the zygomatic regions for placing quad zygomatic implants that obtain the largest BIC. MATERIALS AND METHODS: The zygomatic thicknesses of 300 zygomata were measured at total 12 points on the superior, middle, and inferior areas on the 3-dimensional reconstruction images...
August 1, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28761283/report-of-a-rare-cyst-at-a-rare-site-heterotopic-gastrointestinal-cyst-partially-lined-with-dermoid-cyst-epithelium
#20
Anjali Narwal, Anju Devi, Achla Bharti Yadav, Virender Singh, Ambika Gupta
Heterotopic gastrointestinal cysts (HGCs) of the oral cavity are rare benign lesions mimicking benign or malignant pathologies. These cysts are usually discovered during infancy but may not appear until well into adulthood. The epithelial lining of these cysts shows variable presentation with the presence of an enteric lining as an essential component. The histogenesis is related to entrapment of undifferentiated, noncommitted endoderm within the oral cavity during the 3(rd) - 4(th) week of fetal life. We report a rare case of oral HGC located at a very rare site, i...
January 2017: National Journal of Maxillofacial Surgery
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