21 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Motor Function Shoulder ... aracteristic "claw hand ... " ± Horner Syndrome ... Anterior Shoulder ... sensory #motor #arm #physicalexam
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Reflexes: • Knee ... Ankle - S1 • Biceps ... • Cauda Equina Syndrome ... Commonly caused ... sensory #motor #leg #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 ... - Differential ... #differential # ... diagnosis #msk # ... physicalexam
Syncope is a sudden, transient loss of consciousness, which is thought to be secondary to cerebral
frequently benign causes ... carotid sinus syndrome ... syncope (ruling out differential ... orthostatic vital sign ... Further diagnostics should
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Hair loss- feet and ... #Leg #pain #differential ... lower #extremity #msk ... #physicalexam
Rare Causes of Abdominal Pain
 • Hereditary Angioneurotic Edema - Recurrent visceral that may by swelling
arcuate ligament syndrome ... patient is in the knee-to-chest ... Positive Carnett's sign ... radicular pain #Rare #Causes ... Abdominal #Pain #differential
Yergason's Test on Shoulder Examination
Patient Position: Sitting
Examiner Position: Standing adjacent to the test arm. One hand
One hand stabilizes ... Positive Sign: ... #PhysicalExam # ... clinical #video #msk ... orthopedics #sports #biceps
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
Differential Diagnosis ... when evaluation should ... signs of end-organ ... renal bruit or signs ... #Differential #
Iliotibial Band Friction Syndrome - MSK Radiology
Imaging Findings:
 • The iliotibial band (ITB) is thickened with
Friction Syndrome ... - MSK Radiology ... Case description ... Differential diagnosis ... Radiology #diagnosis #msk
Gout (Gouty Arthritis) - MSK Radiology
Imaging Findings:
 • Eccentric soft-tissue densities surrounding the third proximal interphalangeal
Gouty Arthritis) - MSK ... NO prior signs ... Therefore, the hand ... • This case should ... Differential diagnosis