PSP is characterized by akinetic rigid parkinsonism, dizziness, unsteadiness, […] Hummingbird sign is a rather interesting sign seen in mid-sagital view of MRI brain in patient with progressive supranuclear palsy(PSP) [ref1]. Epidemiology. This is known as the ‘hummingbird’ sign. Magnetic resonance imaging (MRI) of the brain is useful in the diagnosis and treatment of multiple sclerosis (MS), an inflammatory, demyelinating condition of the central nervous system (CNS) that is generally considered to be autoimmune in nature. [1,2] Demonstration of the hummingbird sign on MRI is thought to be useful for establishing the diagnosis of PSP; it is reported to have a sensitivity of nearly 100%. Periventricular Leukomalcia Vs Normal Periventricular Blush - Normally the periventricular area can be slightly echogenic. Hummingbird sign is a rather interesting sign seen in mid-sagital view of MRI brain in patient with progressive supranuclear palsy(PSP) [ref1]. The hummingbird sign was demonstrated in all of the PSP patients studied, and it was not observed in PD patients nor in normal controls. Progressive supranuclear palsy (PSP), also known as the Steele-Richardson-Olszewski syndrome, is a tauopathy and considered a neurodegenerative disease with no currently efficacious treatment. We use cookies to offer you a better experience, personalize content, tailor advertising, provide social media features, and better understand the use of our services. The hummingbird sign, also known as the penguin sign, refers to the appearance of the brainstem in patients with progressive supranuclear palsy (PSP).. - Early PVL appears as periventricular increased echogenicity ( PV area- Watershed area in premature babies and Posterior Parieto-Occipital areas are watershed areas in Term Infants). Radiology Signs — Hummingbird sign - refers to the appearance of the. This appearance has been called the "hummingbird sign" or "penguin sign". The key is a flattening or concave outline to the superior aspect of the midbrain which should be upwardly convex. ... Normal sagittal midline MRI showing the CSF cisterns. Also, atrophy of the tectum is seen, particularly the superior colliculi. Alzheimer disease is a common neurodegenerative disease, responsible for 60-80% of all dementias, and imposing a significant burden on developed nations. Imaging of the brain in patients with suspected neurodegenerative conditions is common and challenging, as in patients with subtle and equivocal signs and symptoms, the imaging findings are also often subtle and equivocal. These findings suggest the diagnosis of progressive supranuclear palsy. The “hummingbird sign” and “Mickey Mouse” midbrainsigns in PSP Magnetic resonance brain scans in patient with progressive supranuclear palsy, showing characteristic “hummingbird sign” and “Mickey Mouse” midbrain ... approx 0.12 (normal approx 0.24) on midline sagittal. A sagittal view of the CT/MRI scan shows atrophy of the midbrain, with preservation of the volume of the pons. It is an important differential diagnosis of Parkinson's disease (PD). Progressive Supranuclear Palsy MRI Progressive Supranuclear Palsy (PSP) ... Hummingbird sign also known as the penguin sign on mid sagittal sections as in our case. The atrophy of the midbrain results in a profile of the brainstem (in the sagittal plane) in which the preserved pons forms the body of the bird, and the atrophic midbrain the head, with beak extending anteriorly towards the optic chiasm. The hummingbird sign was demonstrated in all of the PSP patients studied, and it was not observed in PD patients nor in normal controls. PSP is characterized by akinetic rigid parkinsonism, dizziness, unsteadiness, slowness, falls, and pseudobulbar dysarthria, and also supranuclear eye movement abnormalities which presented as downward, or upward, or combination … Progressive supranuclear palsy (PSP) is a neurodegenerative condition. Progressive supranuclear palsy typically becomes clinically apparent in the 6 th decade of life, and progresses to death usually within a decade (2-17 years from diagnosis).. Clinical presentation. Magnetic resonance imaging (MRI) in PSP patients may reveal significant midbrain atrophy with sparing of pons known as “hummingbird” sign. This is known as ‘The Hummingbird sign’ or ‘The King Penguin sign’.1 The axial T2 MRI image shows a reduction in the anterior–posterior diameter of midbrain with thinning of cerebral peduncle giving appearance of ‘morning glory sign’ or the ‘Mickey mouse sign’ .