311 results
Anterior Interosseous Peripheral Nerve Injury 

Manifested as the inability to make the OK sign.

by Dr. Boby
to make the OK sign ... #Interosseous #Nerve ... #OKSign #clinical ... #video #neurology ... #msk #sports #neurology
Gowers' Sign on Physical Exam

Seen in this patient with Duchenne muscular dystrophy (DMD)

#Gowers #Sign #PhysicalExam #neurology
Gowers' Sign on ... with Duchenne muscular ... DMD) #Gowers #Sign ... #PhysicalExam #neurology ... #clinical #video
Parinaud's Syndrome
What?
 - Impaired upgaze
 - Light-near dissociation
 - Convergence retraction nystagmus
 - Eyelid retraction (Collier's
Parinaud's Syndrome ... retraction (Collier's sign ... → "setting sun sign ... " - Vascular disease ... diagnosis #pineal #neurology
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Tumor • Motor Nerves ... Guillain-Barre syndrome ... heavy metals), Critical ... Mitochondrial myopathy, Muscular ... differential #diagnosis #neurology
Dermatomes and Peripheral Nerves - Segmental Innervation of the Skin and the Peripheral Nerve Supply (Anterior
and Peripheral Nerves ... the Peripheral Nerve ... Dermatomes #Peripheral #Nerves ... Skin #Diagnosis #Neurology ... Text: Hutchison's Clinical
Peripheral and Central Causes of Vertigo
Peripheral Causes (Common):
 - Labyrinth: Benign paroxysmal positional vertigo, Méniére disease,
- Vestibular Nerve ... Vestibulocochlear Nerve ... Uncommon): - Vascular ... hemorrhage - Non-vascular ... differential #diagnosis #neurology
Parinaud's syndrome
What?
 • Light-near dissociation (tectal pupils)
 • Convergence retraction nystagmus
 • Eyelid retraction (Collier's sign)
Parinaud's syndrome ... retraction (Collier's sign ... "setting sun" sign ... • Vascular disease ... #neurology #diagnosis
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Lack of UMN/LMN signs ... myositis • Genetic: Muscular ... aminotransferases • Serology ... myopathies, the muscular ... Differential #Diagnosis #neurology
Marcus Gunn Phenomenon - Jaw Winking Syndrome

Jaw-winking syndrome is thought to be caused by abnormal innervation
- Jaw Winking Syndrome ... Jaw-winking syndrome ... the trigeminal nerve ... #clinical #video ... #neurology #physicalexam
Brudzinski's Sign in Meningitis

Forced flexion of the neck elicits a reflex flexion of the hips. It
Brudzinski's Sign ... #Brudzinskis #Signs ... #PhysicalExam #Clinical ... #Video #neurology