44 results
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
Causes: • Still's ... • Behcet's syndrome ... • Hyper-IgD syndrome ... • Leptospirosis ... • Malaria • Leptospirosis
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis
 • Infection: Extrapulmonary tuberculosis, Abscess, Endocarditis,
Causes of Fever ... Diagnosis • Infection ... Lemierre's syndrome ... Malignancy: - Hematologic ... carcinoma • Non-infectious
Bradycardia - Differential Diagnosis Framework

BRADI Mnemonic
 • BRASH/Hyperkalemia
 • Reduced oxygen/Glucose/Temp
 • ACS
 • Drugs
 •
Drugs • ICP / Infections ... Cimetidine Infections ... Babesiosis • Leptospirosis ... Spondylarthropathies Other causes ... differential #diagnosis #causes
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
SLE) - Viral infections ... Kasabach-Merritt syndrome ... APLS • Acute Infectious ... mountain spotted fever ... Differential #Diagnosis #hematology
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 ... Fever/Chills/Joint ... Acute rheumatic fever ... Effusions: - Hematologic ... Knee #Effusions #causes
Hantavirus
Pathogen: Hantavirus - Rodents are the primary reservoir
Transmission:
 • Shed in the urine, feces, saliva of
common route of infection ... Cardiopulmonary Syndrome ... • Prodrome: fever ... • Autopsy PCR Treatment ... #microbiology #
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
• Clinical: fever ... • Autoimmune diseases ... Adult-onset Still disease ... Drugs, Unknown cause ... Treatment: •
Causes of Ascites
Normal Peritoneum
Portal hypertension (SAAG > 1.1 g/dL)
  1. Hepatic congestionl
Causes of Ascites ... - Budd-Chiari syndrome ... - Nephrotic syndrome ... SAAG < 1.1 g/dL) Infections ... Mediterranean fever
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... Infections 2. ... symptoms - Headache, fever ... Urticaria #diagnosis #rheumatology ... #comparison #table
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
early localized disease ... called "Bazin's disease ... so-called fifth disease ... Erythemas #comparison #table ... differential #diagnosis #dermatology