Image-guided biopsy using 14 to 18 gauge needle for tissue samples
Expansion
Core Needle Biopsy
Purpose
Provides more tissue than fine needle aspiration; allows architectural assessment
Clinical Context
Core needle biopsy: 14 to 18 gauge needle (14G larger, more tissue). Provides histology versus cytology. Allows immunohistochemistry, grading.
Related Terms
- Fine needle aspiration
- Biopsy
Key Points
- Core needle biopsy higher diagnostic accuracy, more tissue; slightly higher complication risk than fine needle aspiration