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2017 ; 3
(ä): 34
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Imaging review of lipomatous musculoskeletal lesions
#MMPMID28474576
Burt AM
; Huang BK
SICOT J
2017[]; 3
(ä): 34
PMID28474576
show ga
Lipomatous lesions are common musculoskeletal lesions that can arise within the
soft tissues, bone, neurovascular structures, and synovium. The majority of these
lesions are benign, and many of the benign lesions can be diagnosed by radiologic
evaluation. However, radiologic differences between benign and malignant
lipomatous lesions may be subtle and pathologic correlation is often needed. The
use of sonography, computed tomography (CT), and magnetic resonance imaging (MRI)
is useful not only in portraying fat within the lesion, but also for evaluating
the presence and extent of soft tissue components. Lipomas make up most soft
tissue lipomatous lesions, but careful evaluation must be performed to
distinguish these lesions from a low-grade liposarcoma. In addition to the
imaging appearance, the location of the lesion and the patient demographics can
be utilized to help diagnose other soft tissue lipomatous lesions, such as
elastofibroma dorsi, angiolipoma, lipoblastoma, and hibernoma. Osseous lipomatous
lesions such as a parosteal lipoma and intraosseous lipoma occur less commonly as
their soft tissue counterpart, but are also benign. Neurovascular and synovial
lipomatous lesions are much rarer lesions but demonstrate more classic radiologic
findings, particularly on MRI. A review of the clinical, radiologic, and
pathologic characteristics of these lesions is presented.