154 results
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
fractured carpal bone ... "pooping duck sign ... common carpal bone ... "pooping duck sign ... Radiology #XRay #Diagnosis
Osteoporosis: Pathogenesis and risk factors

 • Age > 30 (post-peak bone mass)
 • Post-menopausal women ->
30 (post-peak bone ... Decr estrogen • Bone ... #Osteoporosis #pathophysiology ... #signs #symptoms ... #diagnosis
Multiple Myeloma Diagnosis and Management Summary
Clinical Signs:
 • hyperCalcemia 28% (bone demineralization)
 • Renal disease 48%
Multiple Myeloma Diagnosis ... Summary Clinical Signs ... demineralization) • Renal disease ... pathologic fx) Diagnosis ... is also >100 CMC
Gaucher Disease 

Pathophsiology
 • Lysosomal storage disorder
 • Deficiency of ß-glucocerebrosidase
• Accumulation of glucosylceramide in macrophages
Diagnosis
Gaucher Disease ... Pathophsiology ... in macrophages Diagnosis ... Osteonecrosis, bone ... #Diagnosis #Signs
Common Hand Fractures on X-Ray
Mallet finger - injury to the lateral extensor slips
Boutonniere deformity - injury
Terry thomas sign ... Triquetral fracture ... Kienboch disease ... #differential #diagnosis
Hyperparathyroidism - Primary vs Secondary vs Tertiary 
Lab Comparison:
 • Primary Hyperparathyroidism: ↑→PTH, ↑Calcium, ↑Vitamin D,
Symptoms: Commonly no signs ... , Fragile bones/ ... easily/weakness, Bone ... Hyperparathyroidism #diagnosis ... Secondary #Tertiary #pathophysiology
Pott's Disease in Tuberculosis - Diagnosis and Management Summary
Epidemiology:
 - Typically from TB endemic areas
 -
Pott's Disease in ... cases Clinical Signs ... decreased reflexes Pathophysiology ... of bacilli to bone ... intervention CMC
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
- Differential Diagnosis ... • Meniere's Disease ... Media • Temporal Bone ... symptoms/signs, ... #Differential #Diagnosis
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Toxoplasmosis (CD4 ... Chorioretinitis • Diagnosis ... CNS Lymphoma (CD4 ... #differential #diagnosis ... causes #radiology #neurology
Parinaud's Syndrome
What?
 - Impaired upgaze
 - Light-near dissociation
 - Convergence retraction nystagmus
 - Eyelid retraction (Collier's
retraction (Collier's sign ... → "setting sun sign ... " - Vascular disease ... Parinauds #Syndrome #diagnosis ... #pineal #neurology