40 results
Allergic Contact Dermatitis 
- Erythematous, indurated, scaly plaques 
- T-cell mediated, delayed-type hypersensitivity response to exogenous
Allergic Contact ... T-cell mediated, delayed-type ... Contact #Dermatitis #Allergic ... #Allergy #Dermatology
Causes of Diffuse Lymphadenopathy - Differential Diagnosis Algorithm
Reactive:
 - Systemic Inflammatory
     •
Causes of Diffuse ... • Acne • Allergy ... Diagnosis #Algorithm #Causes ... #Hematology #Oncology
Causes of Leukocytosis and Leukopenia - Differential Diagnosis
 • Eosinophilia (AEC > 500, hypereosinophilia > 1500):
Causes of Leukocytosis ... hypereosinophilia > 1500): Allergic ... Differential #Diagnosis #causes ... #hematology
Basophilia - Differential Diagnosis Framework

Basophils < 1% of the total white blood cell count
Basophils function similarly
released during an allergic ... Statistical error/delay ... Chickenpox Other Causes ... Differential #Diagnosis #causes ... #hematology #basophils
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
for secondary causes ... eosinophilia (common causes ... are asthma, allergy ... Differential #diagnosis #hematology
Vascular Skin Lesions - Differential Diagnosis Algorithm
 - Petechiae < 0.2 cm diameter
 - Purpura 0.2
Pressure - Small, dilated ... Vasculitis #SkinRash #dermatology ... Diagnosis #Algorithm #causes
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Causes of Extravascular ... • Alloimmune delayed ... Diagnosis #Algorithm #Causes ... #Hematology
Blood Product Transfusions One Pager Summary
Type and screen - determines blood type and detects in recipient
LDH, etc) - Delayed ... - Allergic ... Causes purpura & ... TRALI): Leading cause ... diagnosis #management #hematology
Approach to Elevated Tryptase - Differential Diagnosis Framework

The DDx of elevated tryptase can be broken down
= Chronic & Rx-related ... : • Rx-related ... Mastocytosis • Other hematologic ... Differential #Diagnosis #hematology ... #allergy
Causes of Eosinophilia - Differential Diagnosis
Bugs:
 - Fungus (aspergillosis)
 - Viral (HIV)
 - Ectoparasites (scabies, myiasis)
Causes of Eosinophilia ... Allergies): - Allergic ... Rhinitis - Allergic ... Differential #Diagnosis #Causes ... #hematology