6 results
Upper Motor Neuron (UMN) lesions are lesions occurring anywhere in the CNS from the brain up
the differential diagnosis ... This lesion causes ... and a positive Babinski ... reflex, presenting ... cord, peripheral nerve
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
- Causes progressive ... muscles, muscle atrophy ... Increased Jaw Jerk reflex ... activity between nerve ... Lateral #Sclerosis #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Pronation - C7, C8 Wrist ... , T1 (median) Reflexes ... distribution with atrophy ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
compression of nerve ... - Emergency Causes ... Differential Diagnosis ... extremity muscle atrophy ... #causes #neurology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Lower roots -> Cauda ... Non-compressive Spinal Cord Causes ... dysfunction • Abnormal reflexes ... Loss of muscle (atrophy ... #neurology #differential
Causes of Dysarthria - Differential Diagnosis Algorithm
Lower Motor Neuron - Slow, Low Volume, Breathy Speech, Tongue
Tongue and Facial Atrophy ... Lesions of Cranial Nerves ... hyperactive gag reflex ... Disorder Extra-Pyramidal ... #Dysarthria #Neurology