32 results
Erythematous Rashes - THE ALGORITHMIC APPROACH

Characterized by diffuse redness of the skin due to
capillary congestion, erythematous
or absence of fever ... If fever is present ... disease, scarlet fever ... but without a fever ... #Diagnosis #Dermatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... mountain spotted fever ... • Drug reactions ... #Diagnosis #hematology ... #nonpalpable #dermatology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Platelet Disorders - Differential ... Diagnosis and Workup ... or if a primary hematologic ... Platelet #Disorders #Differential ... #Workup #hematology
Differential Diagnosis for Hemolytic Anemia
Intrinsic Causes:
 • Enzyme deficiencies ex. G6PD, pyruvate kinase 
 • Hemoglobinopathies
Differential Diagnosis ... : • Liver disease ... • Transfusion reactions ... Hemolytic #Anemia #Differential ... classification #hematology
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
evaluation or workup ... 1,500 cells/µL Workup ... allergy, drug reaction ... Disorders #Algorithm #Differential ... #diagnosis #hematology
Kerion
Raised, boggy lesion with heaped up purulent nodules 
Caused by host's response to a fungal ringworm
purulent nodules Caused ... Hair loss • Fever ... Griseofulvin #Kerion #Dermatology ... #Diagnosis #Management
Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)
Definition: 
 • Severe adverse drug reaction, characterized by
Edema in 70% of cases ... Fever >38.5 2. ... Resolution > 15 days Differentials ... DRESS #Syndrome #dermatology ... #diagnosis #management
TRALI vs TACO - Transfusion Reactions
TRALI:
 • Epidemiology: 0.1% of transfused patientsl
 • Risk factors: Critical
- Transfusion Reactions ... without other cause ... explain symptoms • Fever ... pulmonary edema) • Fever ... #hematology #diagnosis
Vibrio Vulnificus skin infection
Cirrhosis w/recent consumption of raw oysters w/rapidly evolving rash. 
Vibrio vulnificus part of
marine microbiota & causes ... Rapid onset of fever ... immunosuppressive meds ... rash #cellulitis #dermatology ... legs #clinical #photo
Blood Transfusion Reactions

Immune Mediated:
 • Febrile Non-Hemolytic Transfusion Reaction (FNHTR): Most common immune reaction to transfusion.
S/sx: Fever, flank ... have drop in Hct, fever ... Sx include: fever ... Transfusion #diagnosis #management ... #hematology #reactions