Advances in Magnetic Resonance Imaging of the Skull Base

Kirsch, Claudia

doi:10.1055/s-0034-1390013

Cited by 9 publications

(5 citation statements)

References 40 publications

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“…3D FT T1W sequences with 0.6–1-mm-thin slices (VIBE-Volumetric Interpolated Examination) after intravenous contrast administration are additionally used by some investigators including ourselves. These volumetric data sets allow multiplanar reconstructions in any given plane and thereby facilitate the evaluation of subtle abnormalities [ 8 ].…”

Section: Imaging Anatomy Contents and Major Communications Of The Pmentioning

confidence: 99%

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The pterygopalatine fossa: imaging anatomy, communications, and pathology revisited

et al. 2016

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The pterygopalatine fossa (PPF) is a small, clinically inaccessible, fat-filled space located in the deep face that serves as a major neurovascular crossroad between the oral cavity, nasal cavity, nasopharynx, orbit, masticator space, and the middle cranial fossa. Due to its inherent complex location and connections, it can potentially act as a natural conduit for the spread of inflammatory and neoplastic diseases across the various deep spaces in the head and neck. This review aims to acquaint the reader with the imaging anatomy of the PPF, its important communications, and to identify some major pathological conditions that can involve the PPF, especially in conditions where its involvement can have serious diagnostic and therapeutic implications, such as in perineural tumour spread.Teaching points• The PPF is a small neurovascular junction in the deep face with important to-and-fro connections.• Awareness of anatomy of the PPF and its communications helps to simplify imaging of its pathology.• Perineural tumour spread is clinically the most important pathology in this region.

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Section: Imaging Anatomy Contents and Major Communications Of The Pmentioning

confidence: 99%

“…Osseous abnormalities are best seen on CT whilst replacement of fat is best seen on T1W MR images. Contrast-enhanced T1W MR images, especially with fat-saturation, can elegantly demonstrate PNS within the PPF [ 5 – 8 ].…”

Section: Key Ct and Mr Imaging Appearances In Ppf Pathologymentioning

confidence: 99%

The pterygopalatine fossa: imaging anatomy, communications, and pathology revisited

et al. 2016

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“…4,8,11 The evolution of imaging studies allowed better staging and delineation of the tumor extension to involved structures. 12 In the current study, the multivariate analysis found that intracranial tumor extension was a predictor for complication development. We routinely use magnetic resonance imaging, computed tomography (CT), and positron emission tomography-CT studies to assess tumor extension and to select the preferred reconstruction method.…”

Section: Averting Complicationsmentioning

confidence: 53%

Averting Delayed Complications of Open Anterior Skull Base Surgery

Ringel

Livneh

Neiderman

et al. 2020

J Neurol Surg B Skull Base

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Objectives Despite its technical feasibility, anterior skull base surgery still carries the risk of severe postoperative complications, morbidity, and mortality. The reported rate of complications has diminished over the past two decades, but they continue to pose various challenges. This study aims to report late complications in a relatively large series of patients who underwent open anterior skull base surgery, and to propose methods for averting such complications. Methods Retrospective chart review of all patients who underwent anterior open skull base surgery between 2000 and 2016 in a university-affiliated tertiary referral cancer center. Results There were 301 operations, of which 198 (65.8%) were for benign disease and 103 (34.2%) were for malignant tumors. The male-to-female ratio was 1.4:1, and the mean age was 44.8 years. Delayed complications occurred in 85 patients (28.2%): 31 (10.3%) involved wounds, 18 (13.9%) involved the central nervous system, and 14 (4.6%) involved the orbit. Multivariate analysis found malignant pathology, intracranial extension, and previous radiochemotherapy as predictors for the development of a delayed complication. The patients who were operated in the later study period (after 2007) had lower rates of all three types of complications compared with the earlier study period. Conclusion Delayed complications following skull base surgery are in decline. This is mainly due to the advancement in imaging studies, surgical techniques, development of sophisticated reconstructive procedures, and the cooperation of multidisciplinary teams. We attribute the reduction in our department to our revised treatment protocol which is presented herein, with emphasis on averting the occurrence of these complications. Level of Evidence The level of evidence is 4.

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“…There are many vital structures in this area, which contains the parotid gland and minor salivary glands, the VII, IX, X and XI cranial nerves, the cervical sympathetic nerve, lymph nodes, the internal jugular vein, the external carotid artery and its branches, and especially, the internal carotid artery (10,11). The internal carotid artery is a terminal branch of the common carotid artery.…”

Section: Discussionmentioning

confidence: 99%

Surgical management and follow-up of lateral skull base tumors: An 8-year review

Kong

Yang

Wang

et al. 2017

Molecular and Clinical Oncology

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Abstract. The purpose of the present article was to describe the diagnostic evaluation of, and surgical approaches to, lateral skull base tumors (LSBTs). The study is a retrospective review of 21 patients diagnosed with tumors that involve lateral skull base (8 with malignant diseases and 13 with benign lesions) who were surgically treated during a 8-year period. The transparotid-transmandibular (38%) was the most commonly performed surgical procedure, followed by the transmandibular (24%), the transmaxillary (24%), the transcervical approach (10%) and the combined approach (4%). The surgical procedures were uneventful and there were no postoperative mortalities. Complications were encountered in 12 cases, and morbidity was not remarkable during the perioperative stages. After an average follow-up of 46 months, only 1 of 14 patients with benign diseases had a recurrence following the resection of a pleomorphic adenoma. Of 7 patients with malignant tumors, 5 are alive with no evidence of disease. The majority of the benign lateral skull base tumors can be removed surgically with a low rate of complications and recurrence. However, malignant neoplasms carry a poor prognosis and a low rate of disease-free survival.

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Advances in Magnetic Resonance Imaging of the Skull Base

Cited by 9 publications

References 40 publications

The pterygopalatine fossa: imaging anatomy, communications, and pathology revisited

The pterygopalatine fossa: imaging anatomy, communications, and pathology revisited

Averting Delayed Complications of Open Anterior Skull Base Surgery

Surgical management and follow-up of lateral skull base tumors: An 8-year review

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