Skull Base Region Planum Sphenoidale/Orbital Roof Histopathology Meningioma, WHO 1 Prior Surgical Resection Yes Pertinent Laboratory Findings N/A Case description The patient is a 72-year-old male who developed nocturnal generalized…
Skull Base Region Planum Sphenoidale Histopathology Meningioma Prior Surgical Resection No Pertinent Laboratory Findings N/A Case description The patient is a 67-year-old female who initially presented with a severe headache….
SKULL BASE REGION Olfactory Groove HISTOPATHOLOGY Meningioma PRIOR SURGICAL RESECTION No PERTINENT LABORATORY FINDINGS N/A Case description The patient is a 65-year-old man who was found to have an olfactory…
Skull Base Region Olfactory Groove Histopathology Esthesioneuroblastoma Prior Surgical Resection Yes Pertinent Laboratory Findings N/A Case description The patient was a 40-year-old male who presented with a 1-year history of…
Skull Base Region Olfactory Groove Histopathology Esthesioneuroblastoma Prior Surgical Resection Yes Pertinent Laboratory Findings N/A Case description The patient was a 49-year-old male who presented with nasal obstruction and underwent…
4.1 Introduction Conventional radiotherapy and radiosurgery differ in many ways, but the most significant distinction is the time-course of radiation dose delivery. Conventional radiotherapy is delivered in multiple, relatively small…
Terminology and definitions Single-fraction stereotactic radiosurgery (SRS) Single-fraction SRS is a specialized radiation therapy technique that delivers a single high dose of radiation to the tumor (usually <3 cm in…
2.1 Basic radiobiology The predominant method of damage in fractionated photon-based radiation therapy is damage to the DNA. The damage is primarily caused by reactive oxygen species (free radicals) generated…
1.1 Technical requirements of a stereotactic radiosurgery system Stereotactic radiosurgery (SRS) requires high doses of radiation to be delivered to a prespecified volume of tissue with remarkably high spatial accuracy…
Ultrasound 14.0 INTRODUCTION The characteristics, properties, and production of ultrasound for clinical applications are described. Ultrasound interaction with tissues, instrumentation, equipment, image acquisition, processing, and display demonstrate how useful acoustic…
