nodular enhancement
A round or oval-shaped area of increased contrast uptake, typically indicating focal lesions or abnormal tissue.
Full Definition
Nodular enhancement describes a focal, round, or oval-shaped area of increased contrast uptake on enhanced imaging studies. This enhancement pattern typically represents discrete lesions such as tumors, metastases, or inflammatory nodules. In contrast to diffuse or linear enhancement patterns, nodular enhancement is characterized by its well-defined, circumscribed appearance with clear borders from surrounding tissue. In oncologic imaging, recognition of nodular enhancement patterns is crucial for detecting metastatic disease, characterizing primary tumors, and monitoring treatment response. The size, number, and distribution of enhancing nodules provide important diagnostic and staging information.
Usage
Usage note: Specify size and number of nodular enhancements when present.
In Context
- "Multiple small nodular enhancements throughout both lung fields suggest metastatic disease." — CT thorax interpretation
- "A 1.5-cm nodular enhancement in the liver requires further characterization." — MRI abdomen report