23 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
Vascular Skin Lesions - Differential Diagnosis Algorithm
 - Petechiae < 0.2 cm diameter
 - Purpura 0.2
Vascular Skin Lesions ... Pressure - Small, dilated ... discolorations of skin ... Vasculitis #SkinRash #dermatology ... Diagnosis #Algorithm #causes
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 ... symptoms (eg, skin ... Differential #diagnosis #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 ... Diagnosis #Algorithm #causes
Blood Product Transfusions One Pager Summary
Type and screen - determines blood type and detects in recipient
LDH, etc) - Delayed ... - Allergic ... Causes purpura & ... infections with skin ... diagnosis #management #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
Cryofibrinogenemia Summary

Cryofibrinogenemia Epidemiology:
 • 40-70 years with a modest female predominance

Cryofibrinogenemia:
 • The precipitation of a
of fibrin split products ... • Fibrin split products ... clinicopathologically, - Related ... cryoglobulins • Negative causes ... #hematology
Causes of Pseudocellulitis - Differential Diagnosis Framework for Cellulitis Mimics

Cellulitis: Deep skin and subcutaneous fat infection

Pseudo
Causes of Pseudocellulitis ... Cellulitis: Deep skin ... antibiotics and avoid allergic ... Inflammatory Causes ... #dermatology #skin
Blood Transfusion Reactions

Immune Mediated:
 • Febrile Non-Hemolytic Transfusion Reaction (FNHTR): Most common immune reaction to transfusion.
↑LDH, etc) • Delayed ... • Allergic reaction ... Causes purpura & ... infections with skin ... 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