17 results
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 ... - DDX: - Infection ... Infectious Knee ... Chikungunya - Herpes virus ... #Effusions #causes
Prepatellar Bursitis: Extensive redness and swelling caused by bacterial infection involving pre patellar bursae.

Charlie Goldberg, M.D.
redness and swelling caused ... by bacterial infection ... Images #Clinical #Photo ... Prepatellar #Bursitis #Knee ... #Infection #Cellulitis
Bell's Palsy
Bell’s Palsy is a damage, acute weakness, or paralysis of the Facial nerve (7th CN),
an identifiable cause ... The cause is unknown ... associated with viral infections ... Herpes simplex virus ... neurology #anatomy #pathophysiology
Childhood Immunization Schedule: Why we immunize
 • Diphtheria Toxin -> URT inflammation causes pseudomembrane with hardened
URT inflammation causes ... invasion via URT infection ... and hematologic infection ... widespread infection ... peds #pediatrics #pathophysiology
Septic Arthritis: Pathogenesis and clinical findings
Notes:
- Septic Arthritis is typically monoarticular & the knee is involved
monoarticular & the knee ... involved in >50% of cases ... : - Bacterial infection ... S.A. can also be caused ... SepticArthritis #pathophysiology
Herpes Zoster: Herpes virus mediated infection that occurred in this patient receiving chemotherapy 
for an underlying
Zoster: Herpes virus ... mediated infection ... vessicles in this case ... bacterial skin infection ... Images #Clinical #Photo
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Lymphohistiocytosis (HLH) Pathophysiology ... Triggering factor (infection ... +++: Virus (EBV, ... Still disease, Infection ... Drugs, Unknown cause
IgA Vasculitis – Henoch Scholein Purpura: Pathogenesis and Clinical Findings

 - Infectious Agents - 50% have
Findings - Infectious ... respiratory tract infections ... i.e., influenza virus ... arthritis (especially knees ... HenochScholeinPurpura #Pathophysiology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
: • 1400 new cases ... monophasic Pathophysiology ... causes need to ... zoster, West Nile virus ... Herpes simplex virus
Guillain-Barré Syndrome (GBS)
Acute autoimmune demyelinating polyradiculoneuropathy that presents with rapidly progressive flaccid weakness
Epidemiology:
 • Incidence: 1
Incidence: 1 to 2 cases ... to a preceding infection ... • Most common infection ... jejuni • Other infections ... the underlying pathophysiology