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Intracranial myeloid sarcoma: conventional and advanced MRI findings

Uludag University School of Medicine, Departments of ¹ Radiology, ² Neurology, ³ Pathology and ⁴ Neurosurgery, Bursa, Tukey

Correspondence: Dr Bahattin Hakyemez, Radiology, Uludag University Medical School, Uludag Universitesi Tip Fakultesi, Radyoloji ABD, Gorukle, Bursa, Gorukle, 16023, Turkey. E-mail: bahattinh{at}hotmail.com

Chloroma (myeloid or granulocytic sarcoma) is a rare type of tumour comprising immature granulocytic cells. It generally accompanies acute myeloid leukaemia and, rarely, other myeloproliferative disorders. When presenting as dural-based mass lesions, radiological differential diagnosis includes meningioma, metastasis and lymphoma. There is a limited number of descriptions of chloromas mimicking dural-based masses in the literature. We present preliminary diffusion-weighted MR, perfusion-weighted MR and MR spectroscopy findings of an intracranial myeloid sarcoma.