Malignant
Describing cancerous, invasive tumors with metastatic potential
Definition
Malignant refers to tumors that are cancerous. Characterized by rapid, uncontrolled growth, invasion of surrounding tissues, and ability to metastasize to distant sites.
Malignant Features
- Poor differentiation (anaplasia)
- Rapid growth
- Local invasion (no capsule)
- Metastasis through blood, lymph, direct extension
- Recurrence after removal
- Systemic effects (cachexia, paraneoplastic syndromes)
Nursing Considerations
Support patients through diagnosis, treatment (chemotherapy, radiation, surgery, immunotherapy, targeted therapy), and survivorship or end-of-life care. Assess symptoms (pain, fatigue, psychosocial distress). Teach about treatment side effects and infection prevention (neutropenia).
NCLEX Relevance
Contrast with benign. Metastasis signals advanced disease.