9 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity Dermatomes ... Motor Function Shoulder ... - C6, C7, C8 Elbow ... Anterior Shoulder ... Dislocation - May
Vision Loss - Differential Diagnosis
Chronic: 
  - Cornea: Scarring, Edema
  - Lens: Cataracts
Vision Loss - Differential ... Chronic: - Cornea ... Abrasion, Anterior ... Painless: Lens Dislocation ... #Diagnosis #causes
Humeral Avulsion of the Inferior Glenohumeral Ligament (HAGL)
 • Imaging Findings:
 • Large defect of the
HAGL) can be a cause ... of anterior shoulder ... shoulder dislocation ... Differential diagnosis ... Radiology #diagnosis #msk
Blurry Vision - Differential Diagnosis Framework

Anatomical Approach to Eye Disease:
1. Lids/Lashes
2. Extraocular Muscles/Motility
3. Conjunctiva/Sclera
4. Cornea
5. Anterior
Differential Diagnosis ... Anterior Chamber ... edema • Lens dislocation ... #differential # ... ophthalmology #causes
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin Rash - Differential ... silvery scale on elbows ... • Pityriasis Rosea ... #dermatology #Differential ... Diagnosis #Algorithm #causes
Prior anterior glenohumeral joint dislocation with Hill-Sachs fracture and Perthes lesion
Imaging Findings:
 • The arrow is
joint dislocation ... Case description ... GH dislocations ... surgical repair Differential ... Radiology #diagnosis #msk
Red Eye - Differential Diagnosis Framework

What?
Redness in the eye can be caused by many conditions and
Red Eye - Differential ... like the sclera, anterior ... Questions to Ask ... any subjective vision ... Complete vision
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
pustules, cysts • Rosacea ... • Psoriasis - Elbows ... • Pityriasis rosea ... Trunk, especially anterior ... dermatology #rash #differential
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
compressive cord lesion ... Vitamin B12 and copper ... NMO-IgG (anti-AQP4) should ... , MOG-IgG test should ... management #neurology #differential