MR imaging of a malignant schwannoma and an osteoblastoma with fluid-fluid levels. Report of two new cases.
case_report · Level V
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Abstract
One case of malignant schwannoma of the sacrum and another of occipital osteoblastoma were evaluated by MR imaging. Both tumors showed fluid-fluid levels with different signal intensities in the sequences performed. Pathologic examination revealed hemorrhagic fluid in both tumors. Malignant schwannoma and osteoblastoma should be included in the list of bone and soft-tissue with fluid-fluid levels. Our data confirm the non-specificity of this finding, which only suggests the presence of previous intratumoral hemorrhage.
Medical subject headings
- Bone Neoplasms
- Neurilemmoma
- Occipital Bone
- Osteoblastoma
- Sacrum