Teaching NeuroImages: Benediction sign as a result of cervical astrocytoma with syringomyelia

Teaching NeuroImages: Neuropathic elbow arthropathy due to syringomyelia.

A 45-year-old woman presented with 3 months of left elbow swelling and minimal pain (figure, A). She did not remember any upper extremity injury. On examination, she had arthritis of left elbow, wasting of small muscles of the hand, depressed biceps and supinator jerks, and decreased pain and temperature sensation over C5 to T1 dermatomes bilaterally. Tests for syphilis, diabetes mellitus, and ...

Teaching NeuroImages: Spontaneous spinal epidural hematoma with spot sign positivity.

Teaching NeuroImages: isolated cervical spinal cord cysticercosis.

A 23-year-old Brazilian man, a farmer in a rural area of Minas Gerais State, complained of an 8-month history of neck pain and upper-limb weakness. Flaccid tetraparesis, global hyperreflexia, and pyramidal signs were present. Cranial CT and brain MRI were normal. Spinal cord MRI showed an intramedullary tumoral lesion, extending from C3 to C5 vertebral bodies, with a cystic appearance (figure 1...

Teaching NeuroImages: Unilateral prosopometamorphopsia as a dominant hemisphere-specific disconnection sign.

We report 2 patients who complained that the left half of faces appeared distorted. A 58-year-old right-handed woman explained that although the left side of the face was clearly visible, it appeared distorted “like a monster.” The left eye looked elongated toward the left ear, while the nose appeared to be bent toward the left cheek, and the mouth toward the chin. She did not have any dyslexia...

Teaching neuroimages: MRI "target sign" and neurofibromatosis type 1.

A 9-year-old girl presented with a firm occipital swelling. She had multiple café-au-lait lesions without other clinical features or family history of neurofibromatosis type 1 (NF1). MRI showed subcutaneous soft tissue mass in the left occipitotemporal region with “target sign” suggestive of plexiform neurofibroma (figure 1). There were supra and infratentorial T2-weighted hyperintense lesions,...