18 results
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Demyelinating Disease (MS ... injury, Sarcoid ... #differential # ... diagnosis #neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
T1 (ulnar) • Thumb ... T1 leading toc ... aracteristic "claw hand ... spared in this injury ... Myotomes #diagnosis #neurology
Hoffman's sign. Even in this specific case, accompanied by a clonus outline (rhythmic contractions). The median
The median nerve ... flexion of the thumb ... Reflex #Positive #Abnormal ... #clinical #video ... #neurology #PhysicalExam
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
onto outstretched hand ... posterior interosseous nerve ... [cannot extend thumb ... I or Ill) • Ortho ... MH/CCF/CWRU EM
Froment’s Test for Ulnar Nerve Palsy

This tests for pinch grip weakness caused by ulnar nerve palsy,
grip weakness caused ... by flexing the thumb ... #Palsy #clinical ... #video #neurology ... #physicalexam #msk
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
usually happens sleeping ... as in this case ... #PhysicalExam #clinical ... #orthopedics #msk ... #sports #neurology
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Acute Kidney Injury ... osmolarity If cause ... investigations abnormal ... investigations depending on clinical ... #causes
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
joint needs to be clinically ... Finger deformity caused ... : Hyperflexion injury ... MH/CCF/CWRU EM ... #Orthopedics #MSK
Focal Periphyseal Edema (FOPE lesion) - MSK Radiology
Imaging Findings:
 • Arrows identifying the characteristic edema-like signal
FOPE lesion) - MSK ... This abnormal signal ... (save $$) Differential ... Salter Harris injury ... #mri #clinical
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
Hearing Loss - Differential ... include a: • Neurologic ... masses and lymphadenitis ... Rinne Test: • Normal ... Noise trauma ○ MS