28 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 ... #Rash #Skin
Causes of Eosinophilia - Differential Diagnosis
Bugs:
 - Fungus (aspergillosis)
 - Viral (HIV)
 - Ectoparasites (scabies, myiasis)
Causes of Eosinophilia ... - Differential Diagnosis ... ): - Allergic ... Rhinitis - Allergic ... #Causes #hematology
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
for secondary causes ... are asthma, allergy ... symptoms (eg, skin ... #Differential #diagnosis ... #hematology #eosinophilia
Causes of Leukocytosis and Leukopenia - Differential Diagnosis
 • Eosinophilia (AEC > 500, hypereosinophilia > 1500):
Causes of Leukocytosis ... - Differential Diagnosis ... hypereosinophilia > 1500): Allergic ... #Differential #Diagnosis ... #causes #hematology
Eczematous Skin Rash - Differential Diagnosis Algorithm
Eczematous - Pruritic/Scaly/Erythematous lesions. Usually poorly demarcated
 • Atopic Dermatitis
Eczematous Skin ... anyone - Allergic ... - Delayed onset ... Eczematous #SkinRash #dermatology ... #Algorithm #causes
Vascular Skin Lesions - Differential Diagnosis Algorithm
 - Petechiae < 0.2 cm diameter
 - Purpura 0.2
Vascular Skin Lesions ... - Differential Diagnosis ... Pressure - Small, dilated ... Vasculitis #SkinRash #dermatology ... #Algorithm #causes
Causes of Diffuse Lymphadenopathy - Differential Diagnosis Algorithm
Reactive:
 - Systemic Inflammatory
     •
Causes of Diffuse ... - Differential Diagnosis ... • Acne • Allergy ... #Algorithm #Causes ... #Hematology #Oncology
Basophilia - Differential Diagnosis Framework

Basophils < 1% of the total white blood cell count
Basophils function similarly
- Differential Diagnosis ... released during an allergic ... Statistical error/delay ... #Differential #Diagnosis ... #causes #hematology
Approach to Elevated Tryptase - Differential Diagnosis Framework

The DDx of elevated tryptase can be broken down
- Differential Diagnosis ... : • Rx-related ... Mastocytosis • Other hematologic ... #Differential #Diagnosis ... #hematology #allergy
Causes of Pseudocellulitis - Differential Diagnosis Framework for Cellulitis Mimics

Cellulitis: Deep skin and subcutaneous fat infection

Pseudo
- Differential Diagnosis ... Cellulitis: Deep skin ... Imperative to diagnose ... antibiotics and avoid allergic ... #dermatology #skin