11 results
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
articulate with the distal ... and swelling to dorsal ... MH/CCF/CWRU EM ... Carpal #Radiology #XRay ... Orthopedics #Sports #MSK
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
distal phalanx ... to the palmar distal ... MH/CCF/CWRU EM ... IPJoint #Radiology #XRay ... #Orthopedics #MSK
Osteomalacia & Osteoporosis in People with HIV
Osteomalacia:
 - Decreased bone matrix mineralization. In people with HIV
(from multiple causes ... waddling gait - XRay ... of underlying cause ... Osteopenia - Lab: Normal ... Osteoporosis #HIVAIDS #Comparison
VT versus SVT with Aberration - Interpretation Cheat Sheet

Features favouring VT
● Absence of typical RBBB or
captured beats (normal ... hybrid complex of normal ... Brugada algorithm ... point) of S > 100 ms ... Aberration #Aberrancy #Comparison
Hill-Sachs Lesion on Ultrasound 

Unlike normal variant irregular bare area (arrowhead) under infraspinatus, a Hill-Sachs lesion
Ultrasound Unlike normal ... anterior shoulder dislocation ... Lesion #Ultrasound #MSK ... Humerus #Clinical #Comparison ... #XRay
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 ... HSV, Varicella, EBV ... fracture - Patellar dislocation ... - Synovium - Oral ... differential #diagnosis #msk
Acute Liver Injury - Differential Diagnosis Algorithm

Vascular Causes of Acute Liver Injury: 
 • Hepatic vein:
Differential Diagnosis Algorithm ... Vascular Causes ... HBV, HCV, HEV, EBV ... - If both are normal ... function may be abnormal
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
injury • Gait is abnormal ... Non-compressive Spinal Cord Causes ... Infections: - Viral ... dysfunction • Abnormal ... differential #algorithm
Posterior Knee Dislocation Injury
Specifically, POSTERIOR KNEE DISLOCATIONS can have significant associated injury that needs unique approach
: ~25% cases. ... rule out based on normal ... distal pulses and ... Sensation in 1st dorsal ... Posterior #Injury #msk
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
claudication, visual ... strength & enzymes normal ... fluid (CSF) is abnormal ... tract, and often causes ... pain and GN Anti-GBM