3150 results
Causes of Facial Weakness - Differential Diagnosis Algorithm
Forehead Sparing = Central cause
  - Most commonly
Causes of Facial ... Sparing = Central cause ... (2% of facial nerve ... Diagnosis #Algorithm #Causes
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Tumor • Motor Nerves ... multiplex, Phrenic nerve ... Neuromuscular #Weakness #Causes
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Erb's Palsy is caused ... to the radial nerve ... in the median nerve ... Dislocation - May cause ... axillary nerve
Bell's palsy
There are many different causes of Facial Nerve Palsy. However, the commonest
cause of unilateral facial
many different causes ... of Facial Nerve ... the commonest cause
Critical and Emergent Causes of Neuromuscular Weakness
CRITICAL DIAGNOSES 
 - Cerebral cortex or subcortical 
 -
Critical and Emergent Causes ... - Peripheral nerve ... - Peripheral nerve ... Differential #Neurology #Causes
The Chvostek sign (/ˈkvɒstɪk/) is a clinical sign of existing nerve hyperexcitability (tetany) seen in hypocalcemia.It
sign of existing nerve ... of the facial nerve ... When the facial nerve ... hyperexcitability of nerves ... hyperventilation, which causes
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
myringitis • Cranial nerve ... infections Cranial Nerve ... Tumor Cranial nerve ... neuromas Vagus nerve ... and C3 cervical nerve
Paget’s Disease: Complications
Abnormal Osteoclasts cause excessive bone turnover -> Incr bone resorption, Incr (abnormal) bone formation

MSK
Abnormal Osteoclasts cause ... compress spinal nerve ... Skull expansion causes ... which cranial nerves ... middle ear bones causes
Peripheral and Central Causes of Vertigo
Peripheral Causes (Common):
 - Labyrinth: Benign paroxysmal positional vertigo, Méniére disease,
Peripheral and Central Causes ... Vertigo Peripheral Causes ... - Vestibular Nerve ... Vestibulocochlear Nerve ... paroxysmia Central Causes
Pathological Optic Disc Cupping

Note cup-to-disc ratio at least 0.8 (physiologic limit of 0.5).

Thinning of optic disc
Usual cause is glaucoma ... Glaucoma causes ... death of optic nerve