Intermediate
Technical
IVT
sclerotic rim
A dense, white border of reactive bone formation visible on radiographs around benign bone lesions.
Full Definition
A sclerotic rim is a radiographic finding characterized by a thin, well-defined border of dense, reactive bone surrounding a bone lesion. This finding typically indicates a slow-growing, benign process that allows the host bone time to form a protective barrier. The presence of a complete sclerotic rim is an important diagnostic criterion that helps differentiate benign from malignant bone tumors, as malignant lesions rarely allow sufficient time for complete rim formation.
Usage
Usage note: Always describe as 'sclerotic rim' rather than 'sclerotic border' in formal reports.
In Context
- "The radiologist noted a complete sclerotic rim surrounding the lesion, suggesting a benign etiology." — Radiology report
- "Absence of a sclerotic rim in this rapidly growing lesion raised suspicion for malignancy." — Oncology consultation note
Also known as
reactive rim
sclerotic border
Contrasted with
moth-eaten pattern
permeative destruction
Don't confuse with
cortical thickening
periosteal reaction