29 results
Cervical Lymphadenopathy - Lymph Node Drainage
Preauricular nodes - Drain scalp, skin
 • Differential diagnosis: Scalp infections,
diagnosis: Scalp infections ... mycobacterial infection ... upper respiratory infection ... mycobacterial infection ... Drain larynx, tongue
Causes of Peripheral Weakness without Sensory Changes - Differential Diagnosis Algorithm
No Objective Weakness
 • Cardio-pulmonary disease
Sensory Changes - Differential ... Anemia • Chronic Infection ... Neuropathy - Atrophy, Fasciculations ... Dermatomyositis • Viral infection ... Weakness #Neurology #Differential
Tongue Pathology 

Geographic tongue, fissured tongue, and hairy tongue are the most common tongue problems and
Tongue Pathology ... , fissured tongue ... , and hairy tongue ... with a candidal infection ... require biopsy to differentiate
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
Regions - Frequent Differential ... abscess of liver, Dengue ... Maculopapular eruptions - Dengue ... Hemorrhagic fevers; Dengue ... Returning #Traveler #differential
Travel History - Clues to Infectious Disease Diagnosis in a Traveler 
 • Where did you
History - Clues to Infectious ... Herpesvirus B infection ... Mosquito → Malaria, dengue ... InfectiousDiseases #Infections ... #differential #
Faget Sign - Pulse-Temperature Dissociation
Causes of Relative Bradycardia
 • Infectious Causes: Legionella, Psittacosis, Q fever, Typhoid
Bradycardia • Infectious ... Yellow fever, Dengue ... fever • Non-Infectious ... #bradycardia #differential
Faget's Sign & Liebermeister's Rule
Pulse-Temperature Dissociation
EVERY 1 F RISE IN TEMPERATURE -> HR INCREASES 8-10 BPM
INFECTIOUS
INCREASES 8-10 BPM INFECTIOUS ... Dengue Fever NOTE ... the most likely infection ... help hone your differential ... Dissociation #diagnosis #differential
Black Hairy Tongue- ...A polymicrobial wound infection developed, and she received treatment with intravenous meropenem and
Black Hairy Tongue ... polymicrobial wound infection ... ...Black hairy tongue ... Black hairy tongue ... #NEJM #photo #clinical
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Infectious: Legionella ... Yellow fever, Dengue ... spotted fever, Non-infectious ... bradycardia #Causes #differential
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
Fever Patterns - Differential ... and bacterial infections ... Biphasic Fever: • Dengue ... typhoid fever) • Dengue ... Fever #Patterns #Differential