Neuroimaging Signs:
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Behind the Name: Eponyms of Neuroradiology Neurographics 2015
Classical Signs and Appearances in Pediatric Neuroradiology Pol J Radiol 2014
Signs in neuroradiology – part 1 Radiologia Brasileira 2011
Signs in neuroradiology – part 2 Radiologia Brasileira 2011
Twenty classic signs in neuroradiology: A pictorial essay Indian J Radiol Imaging 2009
Bamboo spine – Ankylosing Spondylitis
Baastrup sign – Hypertrophied spinous processes
Bat wing appearance – Joubert syndrome
Black turbinate sign – Angioinvasive fungal sinus infection
Boomerang Sign – Transient lesion in splenium of corpus callosum
Brush Sign – Severity of Moyamoya Disease
Caput medusae sign – cerebral venous angioma
Claw Sign – Differentiation of Infectious from Degenerative Modic Type 1 Signal Changes
Cord Sign – cortical venous thrombosis
Corduray appearance – spine hemangioma
Disappearing Basal Ganglia Sign – cerebral infarction
Empty Delta Sign – superior sagittal thrombus
Ependymal “Dot-Dash” Sign – Early Multiple Sclerosis
Eye-of-the-Tiger Sign – Hallervorden-Spatz syndrome
Haemosiderin cap sign – Spinal Cord Ependymomas
Hot Cross Bun Sign – Cerebellar-predominant multiple system atrophy
Hummingbird Sign – Progressive Supranuclear Palsy
Lentiform Fork Sign – Acute Metabolic Acidosis
Lumbar Sedimentation Sign – Subarachnoid Hemorrhage
MCA Dot Sign – M2 MCA thrombus
Mexican Hat Sign – Osmotic demyelination syndrome
Mickey Mouse Sign, Penguin Sign, Hummingbird sign – Progressive Supranuclear Palsy
Molar Tooth Sign – Joubert syndrome
Mount Fuji Sign – tension pneumocephalus
Naked Facet Sign – Spinal injury
Nerve root sedimentation sign – Lumbar Spinal Stenosis
Optic Nerve Tram-Track Sign – optic nerve sheath meningioma
Parasellar T2 Dark Sign – Lymphocytic Hypophysitis
Polar Vessel Sign – Parathyroid Adenomas
Posterior Vertebral Scalloping Sign – spinal mass
Pseudosubarachnoid hemorrhage sign – Generalized cerebral edema and/or pyogenic leptomeningitis
Puff of Smoke Sign – Moyamoya disease
Pulvinar Sign – Creutzfeldt-Jakob Disease
Racing car sign – Corpus Callosum Agenesis
Radial Bands Sign – tuberous sclerosis
Reversal Sign – Irreversible brain damage
Rim and Flame Signs – Intramedullary Spinal Cord Metastases
Scalpel Sign – Dorsal Thoracic Arachnoid Web
Shading Sign – Cerebral Squamous Cell Metastases
Sugar coating sign – leptomeningeal metastases
Swallow Tail Sign – Absent in Parkinson’s Disease
Swirl Sign – epidural hematoma
Taller-Than-Wide Sign – Thyroid Malignancy
Tau Sign – Persistent Trigeminal Artery
Tram-Track Sign – Cortical Calcifications Struge Weber Syndrome
Thyroid inferno – Graves Disease
Toothpaste sign – Disc Extrusion
U Sign – Identifying the central region
Venous Distension Sign – Intracranial Hypotension
Winking owl sign (Absent Pedicle Sign) – Spinal Metastases
Y-sign – Spinal epidural lipomatosis