We present a case of vitamin B12 deficiency and subacute combined degeneration in a patient with a gastrectomy. MRI showed high-signal lesions on T2-weighted images in both the posterior and anterior columns, associated with minor thoracic spinal cord expansion. The patient was treated with B12 supplements and clinical improvement was associated with reduction of the size of the lesions on MRI.

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Spinal neural foraminal widening is usually caused by benign lesions, most commonly neurofibromas. Rare lesions can also cause spinal neural foraminal widening. Computed tomography and/or MRI are the modalities of choice for studying the spinal foraminal widening. The present pictorial review describes six rare lesions, namely a lateral thoracic meningocele, a malignant fibrous histiocytoma, a tuberculous abscess, an osteoblastoma, a chondrosarcoma and a malignant tumour of the lung which caused spinal neural foraminal widening.

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Dysembryoplastic neuroepithelial tumours (DNTs) are benign lesions affecting young people and are associated with epilepsy. There have been described more than 300 cases in the literature and the clinical, pathological and radiological findings are well known. Recent advances in neuroimaging allow the acquisition of cerebral microcirculation parameters by perfusion weighted imaging, giving additional diagnostic information improving the diagnostic accuracy. The aim of this study is to show the perfusion sensitive contrast-enhanced magnetic resonance imaging findings of a case of DNT as an additional neuroradiological finding. Further investigation of microcirculation parameters may be helpful to establish the correct diagnosis of such tumours.