Posttraumatic pseudolipoma: MRI appearances.

Détails

Ressource 1Télécharger: serval:BIB_F4C013705CAB.P001 (268.09 [Ko])
Etat: Public
Version: de l'auteur
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ID Serval
serval:BIB_F4C013705CAB
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Posttraumatic pseudolipoma: MRI appearances.
Périodique
European Radiology
Auteur(s)
Theumann N., Abdelmoumene A., Wintermark M., Schnyder P., Gailloud M.C., Resnick D.
ISSN
0938-7994
Statut éditorial
Publié
Date de publication
09/2005
Peer-reviewed
Oui
Volume
15
Numéro
9
Pages
1876-1880
Langue
anglais
Notes
Publication types: Comparative Study ; Journal Article
Résumé
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.
Mots-clé
Adipose Tissue/pathology, Adolescent, Adult, Contrast Media, Female, Follow-Up Studies, Hematoma/complications, Humans, Image Enhancement, Lipectomy, Lipoma/diagnosis, Lipoma/etiology, Magnetic Resonance Imaging, Male, Middle Aged, Postoperative Complications, Retrospective Studies, Soft Tissue Injuries/complications, Soft Tissue Neoplasms/diagnosis, Soft Tissue Neoplasms/etiology, Wounds, Nonpenetrating/complications
Pubmed
Web of science
Open Access
Oui
Création de la notice
11/04/2008 13:00
Dernière modification de la notice
01/10/2019 7:20
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