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Fat necrosis after trauma: a benign cause of palpable lumps in children
T S Tsai1, H A Evans, L F Donnelly
1Department of Radiology, Children's Hospital Medical Center, Cincinnati, OH 45229-3039, USA.
Insights
Traumatic fat necrosis in children presents as palpable lumps and is benign. Characteristic magnetic resonance (MR) imaging findings help differentiate it from serious soft-tissue masses, guiding conservative treatment.
Area of Science:
- Pediatric Radiology
- Musculoskeletal Imaging
- Pathology
Background:
- Palpable soft-tissue lesions in children can be concerning.
- Fat necrosis is a benign condition that can mimic more serious pathologies.
- Accurate diagnosis is crucial for appropriate management.
Purpose of the Study:
- To describe the clinical and MR imaging features of post-traumatic fat necrosis in children.
- To establish reliable MR imaging criteria for differentiating fat necrosis from other soft-tissue masses.
- To support conservative management when findings are characteristic.
Main Methods:
- Review of clinical presentations of soft-tissue lesions in pediatric patients.
- Analysis of MR imaging characteristics of confirmed cases of fat necrosis.
- Comparison of imaging findings with other soft-tissue masses.
Main Results:
- Fat necrosis after trauma is a frequent cause of palpable lumps in children.
- Specific MR imaging findings are indicative of fat necrosis.
- Differentiation from malignant or other serious masses is achievable with MR imaging.
Conclusions:
- Post-traumatic fat necrosis is a common and benign condition in children.
- Characteristic MR imaging findings support a diagnosis of fat necrosis.
- Conservative therapy is appropriate when MR imaging is consistent with fat necrosis.
Objective:
Our objective is to describe the clinical entity and MR imaging appearance of fat necrosis after trauma, a benign cause of palpable soft-tissue lesions in children. A related objective is to establish MR imaging criteria that can be used reliably to differentiate this entity from other more serious causes of soft-tissue masses.
Conclusion:
Fat necrosis after trauma is a common cause of palpable lumps in children and has a benign course on long-term follow-up. When characteristic MR imaging findings are seen, conservative therapy is appropriate.