Case Report


, Volume 97, Issue 3, pp 251-253

First online:

An unusual case of lumbar paravertebral miositis ossificans mimicking muscular skeletal tumor

  • C. ZoccaliAffiliated withOncological Orthopaedics Department, Muscular-skeletal Tissue Bank, IFO—Regina Elena National Cancer Institute Email author 
  • , G. ChichierchiaAffiliated withMuscular-skeletal Tissue Bank, IFO—Regina Elena National Cancer Institute
  • , R. CovelloAffiliated withDepartment of Anatomical Pathology, IFO—Regina Elena National Cancer Institute
  • , Regina Elena National Cancer Institute

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Several lesions have clinical and radiological characteristics mimicking muscular skeletal tumor. Myositis ossificans usually presents a typical pattern making biopsy unnecessary; nevertheless, in rare cases, neoplasm must be ruled out. Biopsy is often sufficient to allow a diagnosis and a correct related treatment, but, unfortunately, sometimes it may lead to erroneous treatment. We report an unusual case of a lumbar paravertebral mass that had an MRI aspect similar to a chondrosarcoma, a histology pattern based on biopsy compatible with neurinoma and a definitive diagnosis of myosistis ossificans.


Chondrosarcoma Neurinoma Ossificans myositis Paravertebral mass