39 results
Primary and Secondary Causes of Osteoporosis

Primary osteoporosis 
 - idiopathic juvenile osteoporosis 
 -  postmenopausal
Cushing syndrome ... arthritis - osteogenesis ... Ehlers-Danlos syndrome ... - Marfan syndrome ... Secondary #Causes #Differential
Causes of Severe Aortic Regurgitation - Differential Diagnosis
Acute:
 • Leaflet: Traumatic Rupture, Acute Infective Endocarditis, Acute
Regurgitation - Differential ... Arteritis, Behcet Syndrome ... Genetic Aortopathy: Osteogenesis ... Ehlers-Danlos Syndrome ... Regurgitation #Differential
Vertebral Body Abnormalities

A sheet of common (and uncommon) vertebral body findings, because a completely “normal” spine
Vertebra Hurler Syndrome ... Morquio Syndrome ... Neurofibromatosis Type I Osteopetrosis ... Schmorl Node Osteopetrosis ... #differential
Pathologic / Fragility Fractures - Differential Diagnosis Algorithm 
Tumours
 - See Bone Lesions Scheme
Paget's Disease
 -
Fragility Fractures - Differential ... Deficiency Primary Osteoporosis ... Elderly Secondary Osteoporosis ... Pathologic #MSK #Differential ... Diagnosis #Algorithm #Orthopedics
Diseases Presenting with Pain Out Of Proportion (POOP) - Differential Diagnosis:
 - Orbital Cellulitis 
 -
Diseases Presenting ... Proportion (POOP) - Differential ... Compartmental Syndrome ... Otitis Externa - Aortic ... Ludwig's Angina - Aortic
Acute Joint Pain - Vitamin CD Mnemonic
Vascular
Infectious
Trauma - Multiple injury sites, Open Fracture, Infectious joint pain
Autoimmune
Degenerative Disc Disease ... Osteoarthritis, Osteoporosis ... Mnemonic #MSK #Orthopedics ... #differential #
Causes of SVC Syndrome - Differential Diagnosis Framework
 • Benign (15-40%): Thrombosis (aka catheter-associated), Goiter, Fibrosing
Causes of SVC Syndrome ... - Differential ... Fungal Infection, Aortic ... Cancers, Metastatic Disease ... #Differential #
Relative Risk of Various Predisoosing Conditions for Infective Endocarditis 
High Risk:
 - Prosthetic valves 
 -
Prosthetic valves - Aortic ... valve disease ... Coarctation of the aorta ... endocarditis - Marfan syndrome ... Cardiology #Diagnosis #Differential
Causes of Small Bowel Bleeding - Differential Diagnosis
Common Causes:
 • Under age 40 years: Inflammatory Bowel
Bowel Bleeding - Differential ... Inflammatory Bowel Disease ... , Inherited syndromes ... , Hematobilia, Aorto-enteric ... SmallBowel #Bleeding #Differential
BEE Syndromes - Non-inflammatory Causes

Immune-mediated conditions affecting the Brain, Eye, and Ear

Visual or auditory symptoms in
and less common diseases ... infections • Lyme disease ... Autosomal dominant optic ... ’s hereditary optic ... noninflammatory #differential