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Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
Published on: July 5, 2021
Invasive aspergillosis of the paranasal sinuses and the skull base
Stephan Knipping1, Hans Juergen Holzhausen, Sabrina Koesling
1Department of Otorhinolaryngology Head and Neck Surgery, Martin Luther University Halle-Wittenberg, Magdeburger Str 12, Halle/Saale, Germany. Stephan.knipping@medizin.uni-halle.de
Abstract:
Invasive aspergillosis (IA) originating from the paranasal sinuses can cause an intracranial growth mainly along the skull base and larger vessels. This study reports our experience in the diagnosis and treatment of a series of patients with IA. A retrospective chart review of four patients with chronic invasive intracranial aspergillosis was performed. Clinical signs, physical examinations, radiographs, histological samples, and outcome were demonstrated. The patients demonstrated different symptoms like exophthalmus, ophthalmoplegia, loss of vision, and hypaesthesia of the ophthalmic and maxillary nerve. Computed tomography and MRI revealed extensive sino-orbital and skull base lesions. The patients were treated with aggressive endonasal debridement, intravenous antifungal agents and daily irrigations with antimycotic suspensions. Furthermore, we applied hyperbaric oxygenation. Two patients died from complications due to subarachnoidal hemorrhage and accompanied complications respectively. Despite the high mortality rate patients with an invasive aspergillosis can be effectively treated in some cases by an early and rigorous treatment schedule using all surgical and conservative therapeutic options.
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Cranial Bones: Lateral View
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
