18 results
Incomplete spinal cord syndromes (ISCS)
 • Central - Small Lesion - Suspended sensory deficit, classic cape
Disproportionate motor (UMN ... type) and sensory ... paraparesis (mixed UMN ... ISCS #Incomplete #spinalcord ... syndromes #diagnosis #neurology
Causes of Peripheral Weakness with Sensory Changes - Differential Diagnosis Algorithm
Radiculopathy:
 • Disc
 • Spondylosis
 •
Causes of Peripheral ... Weakness with Sensory ... Compression: • Carpal ... #Neurology #Differential ... Diagnosis #Algorithm #Causes
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Levels Spinal Root Sensory ... Motor Reflex C4 ... Flexion Biceps Reflex ... Sphincter None #SpinalCord ... differential #diagnosis #Neurology
Upper Motor Neuron (UMN) lesions are lesions occurring anywhere in the CNS from the brain up
neurotransmitter cause ... However, in UMN ... hyporeflexia without sensory ... This lesion causes ... positive Babinski reflex
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
- Causes progressive ... Increased Jaw Jerk reflex ... Escorial criteria uses ... evidence of both UMN ... Lateral #Sclerosis #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Non-compressive Spinal Cord Causes ... dysfunction • Abnormal reflexes ... : Areflexia UMN ... #spinal #cord #spinalcord ... disorders #diagnosis #neurology
Median Nerve Anatomy and Function
The Median nerve is the nerve of pre-axial hand function; pinch, delicate
it is not all carpal ... • Carpal tunnel ... and thumb do not flex ... exam to carpal ... Anatomy #diagnosis #neurology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
and Myotomes Reflexes ... Commonly caused ... Narrowing of spinal canal ... Myotomes #diagnosis #neurology ... #sensory #motor
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
, T1 (median) Reflexes ... Erb's Palsy is caused ... Carpal Tunnel Syndrome ... Myotomes #diagnosis #neurology ... #sensory #motor
Marcus Gunn Pupil - Relative Afferent Pupillary Defect (RAPD)
Definition: Afferent loop of the pupillary light reflex
pupillary light reflex ... impaired (loss of sensory ... Optic nerve* (main cause ... #Defect #RAPD #neurology