23 results
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Lithium - Stress Related ... Diffuse #Focal #HairLoss ... #Alopecia #dermatology ... Diagnosis #Algorithm #causes
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
Eczematous Skin Rash - Differential Diagnosis Algorithm
Eczematous - Pruritic/Scaly/Erythematous lesions. Usually poorly demarcated
 • Atopic Dermatitis
- Allergic - Delayed ... Eczematous #SkinRash #dermatology ... Diagnosis #Algorithm #causes
Basophilia - Differential Diagnosis Framework

Basophils < 1% of the total white blood cell count
Basophils function similarly
Statistical error/delay ... Chickenpox Other Causes ... Differential #Diagnosis #causes ... #hematology #basophils
Diffuse Hair Loss (Alopecia) - Differential Diagnosis Algorithm

Scarring - Irreversible-biopsy required
 • Lupus erythematosus
 • Lichen
Lithium - Stress Related ... stress #Diffuse #HairLoss ... #Alopecia #dermatology ... Diagnosis #Algorithm #causes
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Scaling, pustules, crusts ... Differential #Diagnosis #dermatology ... #Hairloss
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
to be a form of delayed-type ... potential inciting causes ... Haverhill fever caused ... • Cause is unknown ... differential #diagnosis #dermatology
Manifestations of Anaphylaxis by Body System

Dermatologic/mucosal

 - Eyes: periorbital swelling/erythema, injected conjunctiva, tears

 - Oral mucosa:
Body System Dermatologic ... , diaphoresis, delayed ... Gastrointestinal - Nausea
Blood Transfusion Reactions

Immune Mediated:
 • Febrile Non-Hemolytic Transfusion Reaction (FNHTR): Most common immune reaction to transfusion.
↑LDH, etc) • Delayed ... Causes purpura & ... TRALI): Leading cause ... more likely to cause ... diagnosis #management #hematology