23 results
Spondylolysis & Spondylolisthesis: Pathogenesis and Clinical Findings

Pars interarticularis stress fracture (spondylolysis) - most frequently in the
Pathogenesis and Clinical ... XR — scotty dog sign ... vertebrae • CT ... Spondylolisthesis #MSK ... #signs #symptoms
Diagram of different types of bone tumors that can occur around the knee on XRay -
blade of grass sign ... island • Stress fracture ... #Tumors #Diagnosis ... #Bony #Differential ... Radiology #XRay #msk
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
Pathogenesis and clinical ... tear a portion of bone ... onto lateral hip Signs ... #msk #diagnosis ... pathophysiology #signs
Diagram of different types of bone tumors that can occur around the knee on XRay
Age <
blade of grass sign ... island • Stress fracture ... #Differential # ... Diagnosis #Radiology ... #XRay #MSK #pediatrics
Inflammatory Myopathies
Dermatomyositis
 • Onset: Subacute
 • Pattern: Proximal
 • CK: Up to 50X ULN
 • Autoantibodies:
heliotrope, shawl sign ... discontinued Inclusion Body ... Inflammatory #Myopathies #differential ... #diagnosis #comparison ... #rheumatology #table
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... : 'signet ring sign ... central dot. - LIP #Clinical ... #Diagnosis #Radiology ... #Comparison #Table
Freiberg Infraction - MSK Radiology
Imaging Findings:
 • Sclerosis of the 2nd MT head with flattening of
Controversy: Subchondral fracture ... for secondary signs ... Differential diagnosis ... plate, subchondral bone ... #msk
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
pathognomonic signs ... high index of clinical ... is required for diagnosis ... #Endocarditis #comparison ... #table
Humeral Avulsion of the Inferior Glenohumeral Ligament (HAGL)
 • Imaging Findings:
 • Large defect of the
Differential diagnosis ... • Bony Humeral ... BHAGL): Avulsion fracture ... GAGL): "Reverse J sign ... #msk
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
life-threatening Differential ... myasthenia Diagnosis ... test - Cogan sign ... - Peek sign ... Imaging - CT Chest