Cytotoxic Edema
Intracellular brain swelling caused by cellular energy failure, often seen with acute tumor-related ischemia or treatment toxicity.
Full Definition
Cytotoxic edema represents intracellular water accumulation resulting from failure of cellular energy-dependent ion pumps, commonly occurring in neuro-oncology when tumors compress blood vessels or when treatments cause cellular toxicity. Unlike vasogenic edema which involves extracellular fluid accumulation, cytotoxic edema appears as restricted diffusion on magnetic resonance imaging. This distinction is crucial for editors as the two types require different therapeutic approaches and have different prognostic implications in brain tumor patients.
Usage
Usage note: Distinguish clearly from vasogenic edema in clinical documentation as treatment approaches differ.
In Context
- "Diffusion-weighted imaging revealed cytotoxic edema in the areas of acute tumor-related ischemia." — Radiology report
- "The patient developed cytotoxic edema following high-dose methotrexate administration." — Clinical notes