21 results
Unilateral Acute Vision Loss - Differential Diagnosis Algorithm
Painful - Cornea
 • Keratopathy
Painful - No Abnormalities of
- Differential Diagnosis ... Algorithm Painful ... Demyelination • MS ... #Algorithm #Causes ... #Ophthalmology
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
- Differential Diagnosis ... Paralysis 4) Paresthesia ... #differential #diagnosis ... lower #extremity #msk ... #physicalexam
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
aracteristic "claw hand ... to the radial nerve ... regimental badge" anesthesia ... Dermatomes #Myotomes #diagnosis ... sensory #motor #arm #physicalexam
Chronic Vision Loss by Anatomic Location - Differential Diagnosis Algorithm
Cornea:
 • Keratoconus
 • Stromal Scaring
 •
- Differential Diagnosis ... Algorithm Cornea ... conditions Optic Nerve ... #Algorithm #Causes ... #Ophthalmology
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
onto outstretched hand ... anterior interosseous nerve ... Humerus #Radiology #XRay ... #Diagnosis #Management ... #Orthopedics #MSK
Anisocoria - Pupillary Defects - Differential Diagnosis Algorithm

Physiological - Simple Anisocoria ( <O.5mm)
 - Anisocoria equal
- Differential Diagnosis ... Algorithm Physiological ... equal in light and ... • Oculomotor Nerve ... #Ophthalmology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Extremity Dermatomes and ... saddle (perineal) anesthesia ... damage to peroneal nerve ... Dermatomes #Myotomes #diagnosis ... sensory #motor #leg #physicalexam
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
onto outstretched hand ... fracture, median nerve ... Carpal #Radiology #XRay ... #Diagnosis #Management ... Orthopedics #Sports #MSK
Cauda Equina Syndrome
Causes:
 • Large lumbar degenerative disc herniation (central)
 • Severe lumbar spondylosis
 • Neoplasm
Incontinence • Saddle Anesthesia ... damage to sacral nerves ... immediate MRI and ... CaudaEquina #Syndrome #MSK ... pathophysiology #diagnosis
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
onto outstretched hand ... posterior interosseous nerve ... Ulnar #Radiology #XRay ... #Diagnosis #Management ... Orthopedics #Proximal #MSK