RESUMO
Seronegative arthropathies are a heterogeneous group of arthropathic disorders with negative rheumatoid factors and varying association with the HLA-B27 phenotype. The distribution of involvement and pattern of presentation within this group is variable. However, these disorders share common features of aggressive erosions, bone density preservation, and proliferative bony response to inflammation. These features along with asymmetric involvement of the appendicular skeleton, sacroiliitis, and spine abnormalities usually allow differentiation from rheumatoid arthritis and other inflammatory arthritides based on imaging studies.
Assuntos
Artrite/complicações , Artrite/diagnóstico por imagem , Articulação Sacroilíaca , Adulto , Artrite Psoriásica/complicações , Artrite Psoriásica/diagnóstico por imagem , Artrite Reativa/complicações , Artrite Reativa/diagnóstico por imagem , Doença de Crohn , Humanos , Masculino , Radiografia , Articulação Sacroilíaca/diagnóstico por imagem , Espondilite Anquilosante/complicaçõesRESUMO
We report the MRI findings of a large deep intermuscular lipoma in a 2-year-old child with a painless palpable shoulder mass, and its differentiation from liposarcoma and other soft-tissue masses. To our knowledge, the imaging features of deep lipomas in children have not been reported.