Skull Base Reconstruction: Demystifying Postoperative Imaging Evaluation
Pathology affecting the skull base is challenging as a result of complex anatomy and critical neurovascular structures. A spectrum of open and endonasal endoscopic surgical approaches have evolved to maximize surgical outcomes. Postoperative CT and MR imaging can be challenging because
of surgical alteration of normal anatomy, and complex reconstructions of the surgically-created defects using an arsenal of tissues and grafts. This article reviews common skull base reconstructions based on anatomic locations and surgical techniques and provides a practical approach to their
postoperative imaging interpretation. Understanding the normal imaging appearance of skull base reconstruction is paramount for accurate postoperative interpretation and delineation between normal reconstructive tissue and neoplasm. The learning objectives of this paper were to understand
the expected postoperative imaging appearance of the common skull base reconstructions and to distinguish between normal reconstructive tissues and neoplasm.
Learning Objective: To understand the expected post-operative imaging appearance of the common skull base reconstructions and to distinguish between normal reconstructive tissues and neoplasm.
Learning Objective: To understand the expected post-operative imaging appearance of the common skull base reconstructions and to distinguish between normal reconstructive tissues and neoplasm.
Keywords: ASB = anterior skull base; CFR = craniofacial resection; ESBR = endoscopic endonasal skull base reconstruction; NSF = nasoseptal flap; l-ASB = lateral anterior skull base; p-ASB = paramedian anterior skull base
Document Type: Research Article
Publication date: 01 March 2015
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