Solitary plasmacytoma of cranium is extremely rare. It has a wide pathological spectrum and can be found in benign and malignant (multiple myeloma) forms. Its clinical features are mixed. A comprehensive examination and analysis are required, including radiological examination, immunoglobulin, biochemistry, urine Bence Jones protein test, and bone marrow evaluation for an accurate diagnosis. In this article, magnetic resonance imaging (MRI) findings of a 48-year-old female patient who presented to the clinic with the complaint of swelling in the frontal region and diagnosed as solitary plasmacytoma of cranium as a result of histopathological findings were presented.
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