Incomplete paresis of the sciatic nerve due to massive atypical lipoma of the pelvis: a case report
Liposarcomas are classified into four subtypes, with different malignancy potential and characteristic imaging appearances. Well differentiated liposarcomas have imaging characteristics similar to those of benign lipomas, however they can be usually distinguished from lipomas because of the larger size and broader fibrous septa, with a more nodular appearance.
Case presentationThis paper presents a case of atypical lipoma (well-differentiated liposarcoma) of the pelvis, leading to partial involvement of the sciatic nerve. In our case, computed tomography (CT) showed a low-density lesion.
In magnetic resonance imaging (MRI), T1 and T2-weighted sequences revealed a fatty appearance with signal loss on fat saturation pulse sequences.
Conclusion: The lesion was successfully resected and no other similar lesions have been found within one year of follow-up.
Author: Andreas Hansch, Mieczyslaw Gajda, Joachim Boettcher, Alexander Pfeil and Werner A Kaiser
Credits/Source: Cases Journal 2008, 1:296
Published on: 2008-11-04
Copyright by the authors listed above - made available via BioMedCentral (Open Access). Please
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