12 results
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
: • Infection: ... Epidural abscess - Herpes ... zoster - HIV ... /swelling - Fever ... extremity #msk #physicalexam
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
Sexual contacts - HIV ... , herpes, hepatitis ... , HIV infection, ... , acute HIV infection ... HIV infection
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
pain/Night sweats ... Brucellosis - Viruses: HIV ... Chikungunya - Herpes ... virus: CMV, HSV ... diagnosis #msk #physicalexam
Hodgkin's Lymphoma vs Non-Hodgkin's Lymphoma - Comparison

Hodgkin's Lymphoma:
 • Epidemiology: young adults 20-30, older 50-70
 •
., HIV), EBV infection ... - Pel-Ebstein fever ... (HIV, EN, HTLV- ... 1, HCV, H. ... Tuberculosis • HIV
Vibrio Vulnificus skin infection
Cirrhosis w/recent consumption of raw oysters w/rapidly evolving rash. 
Vibrio vulnificus part of
Vibrio Vulnificus skin ... Rapid onset of fever ... hemolytic anemia, CKD, hiv ... #dermatology #legs ... #clinical #photo
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
to exclude are infections ... Vasculitis: • Fevers ... Cryoglobulins • HIV ... • HBV HCV • ... differential #diagnosis #rheumatology
Approach to Joint Pain - Diagnostic Framework

1) Chronicity
2) Inflammatory vs Non-Inflammatory
3) Number of Joints Involved

1) Chronicity:
Approach to Joint Pain ... acute rheumatic fever ... - parvovirus, HIV ... , hepatitis, herpes ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
arthralgia, arm/leg ... tract: Abdominal pain ... HTN • Check: HBV ... purpura (lower legs ... Differential #Diagnosis #Rheumatology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
negative anti-lgG ... Mycoplasma, EBV, HIV ... Symptoms: High fevers ... chills, flank pain ... hemolytic #anemia #hematology
Blood Transfusion Reactions

Immune Mediated:
 • Febrile Non-Hemolytic Transfusion Reaction (FNHTR): Most common immune reaction to transfusion.
pain, dark urine ... with skin flora ... Extremely rare - HIV ... 2,000,000,000, HBV ... in 100,000,000, HCV