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The first 25 slides, exactly as they appear. The full deck has 46 content slides.
Neurosurgery
Surgical Management of Convexity Meningiomas
Built from Feldman — Neurosurgical Operative Atlas: Neuro-Oncology
What’s inside
8 sections · 46 slides
Overview
- What this deck will teach you
Understanding Convexity Meningiomas
What they are and where they grow
- What is a meningioma?
- What does “convexity” mean here?
- Meningiomas by the numbers
- Convexity vs. parasagittal: why the distinction matters
Recognizing the Tumour
How patients present and what imaging shows
- How do these tumours announce themselves?
- Frontal convexity meningioma on MRI and CT
- MRI: the imaging workhorse
- Reading the tumour, and its mimics
- Vascular imaging and embolization
Deciding to Operate
Watchful waiting, surgical goals, and Simpson grading
- Watch or operate?
- When surgery is indicated
- Simpson grade predicts recurrence
- The philosophy: maximal SAFE resection
Preoperative Management
Preparing the patient for theatre
- Getting the patient ready
- Special preparation for selected tumours
The Operation, Step by Step
Positioning to closure
- Six guiding principles of the operation
- Positioning: let gravity do the work
- Supine positioning for anterior frontal tumours
- Pterional incision for frontotemporal tumours
- Prone positioning for parietal and occipital tumours
- Planning the craniotomy
- When the tumour has invaded the skull
- Devascularize before you open
- Opening the dura around the tumour
- Internal debulking, then extracapsular dissection
- The dissection plane at the brain–tumour interface
- Pulling the capsule inward and shielding the brain
- Dissecting the tumour free with patties
- The empty tumour bed after removal
- Protecting the vessels during dissection
- Finishing up: dura, bone, and closure
After the Operation
Monitoring and long-term follow-up
- The early postoperative period
- Follow-up tailored to tumour grade
Summary
The key ideas to take away
- Three things to remember
- Why is a convexity meningioma usually safer to remove than a parasagittal one?
- References
- Neurosurgical Operative Atlas: Neuro-Oncology