13 results
Causes of Secondary IgA Nephropathy - Differential Diagnosis Algorithm
 • GI disorders: Celiac disease, Crohn's disease,
- Differential Diagnosis ... Alcoholic Cirrhosis, NASH ... Viruses: HIV, CMV, Hep ... B and C • Infections ... myeloma, Lymphomas, RCC
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Chorioretinitis • Diagnosis ... lesions + toxo IgG ... • CNS PCR 50% ... , may also see skin ... #differential #diagnosis
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Agglutinin Syndrome (CAS ... , autoimmune disorder ... post infectious ... CLL (older) • Autoimmune ... Hemoglobinuria (PCH
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... Diagnosis? ... skin of inflamed ... Indiana University Infectious ... type #clinical #photo
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
centrifugum • A chronic skin ... gyratum repens • A skin ... induratum • A chronic skin ... (HSV + Mycoplasma ... #differential #diagnosis
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... : HSV 1): • Herpes ... Maculopapular rash ... • Uveitis • Rash ... Singh @rav7ks #CNS
Acute Liver Injury - Differential Diagnosis Algorithm

Vascular Causes of Acute Liver Injury: 
 • Hepatic vein:
- Differential Diagnosis ... Liver Injury: • Infectious ... HCV, HEV, EBV, HSV ... Celiac disease • Autoimmune ... : Autoimmune hepatitis
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... of shoulder and hip ... , mucositis • Rash ... , IgA (cmpkx deposits ... chorioretinitis, CNS
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
3rd Decade Skin ... Differential Diagnosis ... disease • Non-autoimmune ... fibromyalgia) • Infections ... and CNS • Headache
Vancomycin induced Leukocytoclastic Vasculitis (LCV) of the Hand
70 M vertebral osteomyelitis on vancomycin and cefepime for
diffuse palpable rash ... Diagnosis? ... polyangiitis, HSP ... , foods, autoimmune ... dermatology #clinical #photo