8 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
- C6, C7, C8 Elbow ... the median nerve distribution ... Anterior Shoulder ... Dislocation - May ... #Myotomes #diagnosis
Humeral Avulsion of the Inferior Glenohumeral Ligament (HAGL)
 • Imaging Findings:
 • Large defect of the
of anterior shoulder ... shoulder dislocation ... Differential diagnosis ... BHAGL): Avulsion fracture ... #msk
Prior anterior glenohumeral joint dislocation with Hill-Sachs fracture and Perthes lesion
Imaging Findings:
 • The arrow is
Case description ... surgical repair Differential ... diagnosis: • Bankart ... clinical #Radiology #diagnosis ... #msk
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
- Vitamin B12, Copper ... temperature in the distribution ... Vertebral burst fracture ... #differential # ... diagnosis #neurology
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
pustules, cysts • Rosacea ... • Psoriasis - Elbows ... Trunk, especially anterior ... dermatology #rash #differential ... #diagnosis #skin
Transient Patellar Dislocation - MSK Radiology
Imaging Findings:
 • Hyperintense marrow edema of the anterolateral femoral condyle
- MSK Radiology ... disrupted at the anterior ... contusions in classic distribution ... Differential diagnosis ... #msk
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
arms (pyramidal distribution ... compressive cord lesion ... NMO-IgG (anti-AQP4) should ... , MOG-IgG test should ... management #neurology #differential
Tenosynovitis of the peroneal tendons due to hypertrophic peroneal tubercle
Imaging Findings:
 • Large volume ofT2-hyperintense fluid
Case description ... Differential diagnosis ... tendon subluxation/dislocation ... osteochondral lesions ... #msk