10 results
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... • Cauda Equina Syndrome ... such as fibular fracture ... Dermatomes #Myotomes #diagnosis ... sensory #motor #leg #physicalexam
Guillain–Barré syndrome (GBS)
(aka: Landry–Guillain–Barré–Strohl syndrome:
	Most common cause of acute flaccid paralysis
	Rapidly progressive ascending paralysis & areflexia
	Autonomic
Guillain–Barré syndrome ... Landry–Guillain–Barré–Strohl syndrome ... moves rapidly from lower ... Differential diagnosis ... dilated pupils, food
Freiberg Infraction - MSK Radiology
Imaging Findings:
 • Sclerosis of the 2nd MT head with flattening of
Controversy: Subchondral fracture ... Differential diagnosis ... Freiberg #Infraction #foot ... #clinical #mri ... #msk
Haglund Syndrome - MSK Radiology
Imaging Findings:
 • The Haglund Deformity (enlarged superior margin calcaneal posterior process)
- MSK Radiology ... Differential diagnosis ... • Stress fracture ... Heel #clinical #mri ... #msk
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
Diagnosis: • ... distinguishing feature ... Imaging studies: • MRI ... #differential # ... diagnosis #causes
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Diagnosis Framework ... Leg Pain: • Fracture ... #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:
		-
Knee Effusions - Differential ... Diagnosis Framework ... Intra-articulation fracture ... #diagnosis #msk ... #physicalexam
Nonossifying Fibroma with Pathologic Fracture - MSK Radiology
Imaging Findings:
 • Cortically based, geographic, lucent lesion with
- MSK Radiology ... Diagnose with X-RAY ... Jaffe-Campanacci syndrome ... Differential diagnosis ... #msk
Intermetatarsal Bursitis - MSK Radiology
Imaging Findings:
 • T2-hyperintense fluid-like signal and T1-hypointense signal between the first
Intermetatarsal Bursitis - MSK ... • The MRI shows ... Differential diagnosis ... Intermetatarsal #Bursitis #foot ... #msk
Medial Tibial Stress Syndrome (Shin Splints) - MSK Radiology
Imaging Findings:
 • Within the mid diaphysis of
Tibial Stress Syndrome ... Shin Splints) - MSK ... • MRI evidence ... -sequences +/- fracture ... Differential diagnosis