• molar tooth sign (MRI brain) = Joubert syndrome
• starry sky sign(CT) = appearance that may be seen with neurocysticercosis
• Boomerang Sign-hyperintense signal in the splenium of the corpus callosum accompanying stroke; also an
• MRI sign in peroneus brevis split syndrome
• Figure of eight (MRI) = Appearance of brain in lissencephaly
• Boxcar ventricles = appearance of frontal horns that may be seen in huntington's disease
• salt and pepper appearance(MRI) = paraganglioma
• hot cross bun = multisystem atrophy
• humming bird sign = progressive supranuclear palsy
• Eye of tiger Sign = low signal intensity circumscribing the globus pallidus in patients with hallervorden - spatz

disease