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Supsupin EP, Gonzales NS, Debnam JM. Anatomy and Pathology of the Skull Base: Malignant and Nonmalignant Lesions. Oral Maxillofac Surg Clin North Am 2023:S1042-3699(23)00025-0. [PMID: 37142448 DOI: 10.1016/j.coms.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The skull base (SB) is the osseous foundation of the cranial vault. It contains many openings that allow communication between the extracranial and intracranial structures. This communication is crucial in normal physiologic processes yet may also arrow spread of disease. This article provides a comprehensive review of SB anatomy including important landmarks and anatomic variants relevant to SB surgery. We also illustrate the diverse pathologies affecting the SB.
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Affiliation(s)
- Emilio P Supsupin
- Radiology/Neuroradiology, Radiology Residency Program, University of Florida College of Medicine, 655 West 8th. Street, Jacksonville, FL 32209, USA.
| | - Noelani S Gonzales
- Nova Southeastern University, Dr. Kiran C. Patel College of Osteopathic Medicine, Fort Lauderdale, FL 33314, USA
| | - James Matthew Debnam
- Neuroradiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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Natural History of Traumatic Encephaloceles: A Systematic Literature Review. J Craniofac Surg 2023; 34:120-125. [PMID: 36000749 DOI: 10.1097/scs.0000000000008955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 07/10/2022] [Indexed: 01/11/2023] Open
Abstract
Encephaloceles rarely develop following traumatic skull fractures. Given their low incidence, the clinical presentations and management strategies of these lesions are confined to case reports and limited case series. A systematic literature review was performed using PubMed, Ovid, and Web of Science databases to identify relevant articles using Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. A total of 37 articles met inclusion criteria, including the case presented herein. These articles reported 52 traumatic encephaloceles. Mean patient age was 25.3 years (range 6 mo-66 y) with a male predominance (63%, 33/52). The most common bony defects resulting in encephalocele formation were the orbital roof (52%, 27/52), ethmoid (35%, 18/52), and sphenoid (10%, 5/52). Mean time from traumatic injury to initial presentation was 21.3 months (range 0 d-36 y) with a bimodal distribution split between immediately following the traumatic injury (57%, 26/46) or in a delayed manner (43%, 20/46). Common presentations of orbital roof, frontonasal, and temporal bone encephaloceles were exophthalmos (85%, 23/27), cerebrospinal fluid rhinorrhea (71%, 17/24), and hearing loss (100%, 4/4), respectively. Operative approach, repair technique, and materials used for encephalocele reduction were highly variable. Surgical intervention afforded definitive symptomatic improvement or resolution in the majority of cases (89%, 42/47). Clinical outcomes did not differ between orbital, frontonasal, or temporal bone encephaloceles ( P =0.438). Traumatic encephaloceles are a rare entity with diverse presenting symptomatology dependent upon the location of fracture dehiscence. Surgical intervention affords symptomatic improvement in the majority of cases irrespective of encephalocele location, time to presentation, or operative approach.
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Mercea PA, Gadenstaetter AJ, Matula C, Arnoldner C. Combined Open Surgical and Endoscopic Approach for Management of a Meningoencephalocele After Iatrogenic Perforation of the Anterior Skull Base in a Young Infant. Cureus 2022; 14:e24797. [PMID: 35686256 PMCID: PMC9170422 DOI: 10.7759/cureus.24797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2022] [Indexed: 11/21/2022] Open
Abstract
Traumatic iatrogenic perforation of the anterior skull base is a rare complication following endonasal intubation in preterm infants. Subsequent meningoencephaloceles with concomitant cerebrospinal fluid (CSF) fistulas bear the risk of severe complications, therefore early diagnosis and closure of the skull defect are crucial. However, there is no consensus on the management of such cases of meningoencephaloceles. This case report presents a sophisticated approach of open brain surgery in combination with endonasal endoscopy. A 15-month-old girl presented with a meningoencephalocele and a CSF fistula due to iatrogenic perforation of the left anterior skull base during attempted endonasal intubation after birth. Difficult nasal breathing and an increasing diameter of the skull base defect on imaging controls indicated surgical management. Close multidisciplinary collaboration was essential for diagnosis and decision upon treatment. Open neurosurgical resection and CSF fistula closure combined with endonasal endoscopic removal of the excised meningoencephalocele was performed. Our case report shows that this combined open surgical and endonasal endoscopic approach is a safe procedure in favor of the postoperative outcome and follow-up of the patient.
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Rampinelli V, Mattavelli D, Ferrari M, Schreiber A, Ravanelli M, Farina D, Deganello A, Fontanella MM, Doglietto F, Nicolai P. Management of anterior fossa cephaloceles. J Neurosurg Sci 2020; 65:140-150. [PMID: 33320465 DOI: 10.23736/s0390-5616.20.05099-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Skull base cephaloceles (SBCs) are defined as herniation of intracranial content through the skull base and are classified based on composition, etiology, and topographic location. Anterior SBCs frequently protrude in the sinonasal cavity, and consequently are at potential risk of infection. Therefore, the current recommendation is to treat SBCs with the primary intent of preventing meningitis, and surgery represents the mainstay of treatment. Anterior SBCs may display a wide spectrum of severity and complexity, and in each case the risks and benefits of surgical approaches are to be carefully weighted based on thorough assessment of symptoms, age, general conditions, location and size of the lesion, as well as expertise of the surgeon. In the last 30 years, the evolution and diffusion of transnasal endoscopic surgery have substantially changed the surgical management of the majority of SBC. In the past, they were treated exclusively with open transcranial approaches that may be burdened by relevant morbidity and risk for severe complications. The transnasal endoscopic corridor now provides easy access to the lesion and different reconstructive strategies using endonasal pedicled flaps, without any external incision, cranioplasty or brain manipulation. However, there are still scenarios in which an exclusive transnasal endoscopic route is contraindicated. The aim of the present review was to provide an overview on the comprehensive management of anterior SBC, with a particular focus on lesions suitable for endoscopic surgery. Furthermore, special aspects of SBC management in children and adults will be highlighted.
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Affiliation(s)
- Vittorio Rampinelli
- Unit of Otorhinolaryngology, Head and Neck Surgery, Department of Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Davide Mattavelli
- Unit of Otorhinolaryngology, Head and Neck Surgery, Department of Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Marco Ferrari
- Unit of Otorhinolaryngology, Head and Neck Surgery, Department of Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy.,Section of Otorhinolaryngology, Head and Neck Surgery, Department of Neurosciences, University of Padua, Padua, Italy
| | - Alberto Schreiber
- Unit of Otorhinolaryngology, Head and Neck Surgery, Department of Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Marco Ravanelli
- Unit of Radiology, Department of Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Davide Farina
- Unit of Radiology, Department of Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Alberto Deganello
- Unit of Otorhinolaryngology, Head and Neck Surgery, Department of Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Marco M Fontanella
- Unit of Neurosurgery, Department of Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Francesco Doglietto
- Unit of Neurosurgery, Department of Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy -
| | - Piero Nicolai
- Section of Otorhinolaryngology, Head and Neck Surgery, Department of Neurosciences, University of Padua, Padua, Italy
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Endonasal endoscopic surgery for pediatric anterior cranial fossa encephaloceles: A systematic review. Int J Pediatr Otorhinolaryngol 2020; 132:109919. [PMID: 32036168 DOI: 10.1016/j.ijporl.2020.109919] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 01/28/2020] [Accepted: 01/30/2020] [Indexed: 12/30/2022]
Abstract
BACKGROUND Endoscopic endonasal skull base surgery (ESBS) is a well-established management strategy for anterior cranial fossa (ACF) encephaloceles in adults. However, its application to the pediatric population has not been evaluated in large-scale studies. This study systematically reviews the safety of ESBS for pediatric ACF encephaloceles. METHODS Articles reporting on pediatric patients undergoing purely ESBS for encephaloceles were reviewed from three databases (PubMed, Scopus, and Cochrane Library). Main outcomes were post-operative cerebrospinal fluid (CSF) leak and other surgical complications. RESULTS Twenty-three articles provided data on 110 eligible patients with a mean age of 4.3 years (range birth - 18 years). Intraoperative CSF leaks occurred in 18.5% of children while post-operative CSF leaks developed in 6.0% of cases. Rates of meningitis and hydrocephalus were each 3.7%. Other complications included alar collapse, nasal stenosis, transient diabetes insipidus, pneumonia, and neurologic injury, collectively occurring in 7.0% of cases. The rate of death was 4.8%. The average duration of follow-up was 25.3 months. Encephaloceles recurred in 5.2% of patients. CONCLUSIONS ESBS for pediatric ACF encephaloceles provides a relatively favorable risk-benefit profile, with a low rate of post-operative CSF leak, other surgical complications, and disease recurrence.
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