PMC5519479_01
Sagittal T1-weighted (left) and STIR (right) MRI images of the vertebrae showing broad reduced (left) and hyperintense (right) signals of the lumbar bones in comparison to the signals of the adjacent disk and paravertebral muscles, and a tumor involving the L4 vertebrae (arrow).
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Lumbar MRI, which was performed by his previous doctor, showed broad reduced T1-weighted signals and hyperintense short tau inversion recovery (STIR) signals of the lumbar bones in comparison to the signals of the adjacent disk and paravertebral muscles, and a tumor that involved the L4 vertebrae (Fig. 1, 2).
An axial T1-weighted MRI image of the vertebrae showing a tumor constricting the vertebrae foramen (arrow).
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Lumbar MRI, which was performed by his previous doctor, showed broad reduced T1-weighted signals and hyperintense short tau inversion recovery (STIR) signals of the lumbar bones in comparison to the signals of the adjacent disk and paravertebral muscles, and a tumor that involved the L4 vertebrae (Fig. 1, 2).
A bone marrow aspiration specimen showing marked plasma cell proliferation. May-Grunwald Giemsa staining: (A) x400, (B) x1,000.
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The bone marrow biopsy showed hyperplasia of the atypical plasma cells (65.5%) (Fig. 3).