5 results
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
continence • Pain ... Spinal Cord Causes ... MCTD, Sjogren syndrome ... Cord Compression ... , lower extremity
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... Reflexes: • Knee ... • Cauda Equina Syndrome ... - Low back pain ... Commonly caused
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
due to severe compression ... - Emergency Causes ... Diagnosis: • Spinal cord ... infarct • HIV ... spondylitis • Tethered cord
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
stenosis/nerve compression ... Herpes zoster - HIV ... differential #diagnosis #lower ... #extremity #msk ... #physicalexam
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Causes of Knee Effusions ... Fever/Chills/Joint pain ... Ligamentous injuries - Meniscal ... differential #diagnosis #msk ... #physicalexam