Teaching NeuroImages: Sonographic "retrobulbar spot sign" in differentiating etiologies of sudden visual loss

Teaching NeuroImages: sonographic "retrobulbar spot sign" in differentiating etiologies of sudden visual loss.

A 61-year-old vascular patient presented with headache and subacute blindness in the left eye. Remaining American College of Rheumatology criteria were negative. Sonography of the temporal artery revealed no halo sign, but due to low sensitivity, vasculitis could not be excluded. Transorbital examination revealed hyperechogenic retrobulbar spot sign (figure), which is highly specific for emboli...

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

the role of visual aids and translation in teaching vocabulary in est

the present study investigated the effect of the two vocabulary teaching techniques in est, namely the use of translation and the use of visual aids as two separate vocabulary teaching techniques. to answer the question of the study, a pretest (michigan test) was administered to the 58 randomly selected est students at khajeh nasiredin tusi university, faculty of mechanics. after the homogeneit...

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,...

Sudden visual loss in asthma.

A woman of 23 attended the accident and emergency department after feeling unwell and acutely short of breath for one day. She used salmeterol, beclomethasone and salbutamol inhalers for asthma; otherwise there was no medical history of note. On examination she was tachypnoeic, tachycardic and unable to complete full sentences. Temperature was normal. There were widespread wheezes in the chest....