Posttraumatic pseudolipoma: MRI appearances
| Autor: | Max Wintermark, A. Abdelmoumene, M.-C. Gailloud, Donald Resnick, Nicolas Theumann, Pierre Schnyder |
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| Rok vydání: | 2004 |
| Předmět: |
Adult
Male medicine.medical_specialty Soft Tissue Injuries Adolescent Contrast Media Physical examination Soft Tissue Neoplasms Wounds Nonpenetrating Hematoma Postoperative Complications Lipectomy medicine Deformity Humans Radiology Nuclear Medicine and imaging Neuroradiology Retrospective Studies medicine.diagnostic_test business.industry Soft tissue Magnetic resonance imaging General Medicine Middle Aged medicine.disease Image Enhancement Magnetic Resonance Imaging medicine.anatomical_structure Adipose Tissue Blunt trauma Abdomen Female Radiology Lipoma medicine.symptom business Follow-Up Studies |
| Zdroj: | European radiology. 15(9) |
| ISSN: | 0938-7994 |
| Popis: | The goal of this study was to describe the MRI characteristics of posttraumatic pseudolipomas. Ten patients with previous history of blunt trauma or local surgery were investigated with MRI at the level of their deformity. The etiology was blunt trauma in eight patients and postoperative trauma in two. For all patients medical documentation, in the form of clinical history and physical examination, confirmed that a visible hematoma was present acutely at the same location following the injury and that the contour deformity subsequently appeared. All patients underwent liposuction. Preoperative bilateral MRI examinations were performed on all patients. The mean clinical follow-up was 17.8 months. MRI examinations were interpreted in consensus by two experienced musculoskeletal radiologists with attention to fatty extension (subcutaneous fatty thickness and anatomical extension), asymmetry compared with the asymptomatic side, the presence or absence of fibrous septae or nonfatty components, and patterns of contrast enhancement. Ten posttraumatic pseudolipomas were identified. Clinically, they showed as subcutaneous masses with the consistency of normal adipose tissue. Their locations were the abdomen (n=1), hip (n=1), the upper thigh (n=6), the knee (n=1), and the ankle (n=1). On MRI examinations, using the contralateral side as a control, pseudolipomas appeared as focal fatty masses without a capsule or contrast enhancement. Posttraumatic pseudolipomas may develop at a site of blunt trauma or surgical procedures often antedated by a soft tissue hematoma. Characteristic MRI findings are unencapsulated subcutaneous fatty masses without contrast enhancement. |
| Databáze: | OpenAIRE |
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