12 results
Hearing Loss - Differential Diagnosis Framework

Hearing Loss Types:
• Conductive
• Sensorineural
• Mixed
Presbycusis is the most common type
Hearing Loss - Differential ... Diagnosis Framework Hearing ... Infection or cancer ... Normal: Air > bone ... loss: Bone > Air
Primary Bone Tumors - Differential Diagnosis Algorithm 

Metastatic - Most common tumour in adults
 - Breast
Primary Bone Tumors ... • Aneurysmal Bone ... Histiocytoma #Primary #Bone ... #Bony #Tumors # ... Tumours #MSK #Differential
Causes of Hyperferritinemia - Differential Diagnosis
Ferritin > 1000
Ferritin is the storage form of iron. Increased hepcidin
- Differential ... ferritin from leaving ... be used by the bone ... Infection -16% ... Infection - 46%
Fracture Healing (and disruptors of this process)
Inflammatory Stage (0-7d)
 • Fracture disrupts local blood vessels ->
Fracture Healing ... osteoblasts forms bony ... Osteoclast-osteoblast coupled bone ... from GI tract, bone ... #Fracture #Healing
Paget’s Disease: Complications
Abnormal Osteoclasts cause excessive bone turnover -> Incr bone resorption, Incr (abnormal) bone formation

MSK
excessive bone ... turnover -> Incr bone ... Incr (abnormal) bone ... formation MSK ... -> Conductive hearing
Delayed Fracture Healing - Non-Union - Malunion - Differential Diagnosis Algorithm

Inflammation (Hours-Days) -> Soft Callus (Days-Weeks)
Delayed Fracture Healing ... • Excessive bone ... Delayed #Fracture #Healing ... NonUnion #Malunion #MSK ... #Causes
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Causes of Knee Effusions ... - Differential ... Non-weight bearing ... - Aneurysmal bone ... diagnosis #msk #
Freiberg Infraction - MSK Radiology
Imaging Findings:
 • Sclerosis of the 2nd MT head with flattening of
Freiberg Infraction - MSK ... Case description ... worsens with weight-bearing ... Differential diagnosis ... plate, subchondral bone
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
Bone Deformity / ... Diagnosis Algorithm Infection ... • Dwarfism #Bone ... Deformity #Limp #MSK ... Diagnosis #Algorithm #Orthopedics
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Diagnosis Framework Bone ... Leg Pain: • Infection ... • Sciatica • Tarsal ... lower #extremity #msk