15 results
Differential Diagnosis for Hemolytic Anemia
Intrinsic Causes:
 • Enzyme deficiencies ex. G6PD, pyruvate kinase 
 • Hemoglobinopathies
, spider/snake bites ... ABO incompatibility ... classification #hematology
Vibrio Vulnificus skin infection
Cirrhosis w/recent consumption of raw oysters w/rapidly evolving rash. 
Vibrio vulnificus part of
rapidly evolving rash ... , hypotension, rash ... transferrin Early abx ... skin #infection #rash ... #cellulitis #dermatology
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
(blue-purple) rash ... • Erythematous rash ... • Anti-TIF1y Abs ... with anti-NXP2 Abs ... #dermatology #diagnosis
Capnocytophaga Canimorsus Skin Rash

40 M presents w/ N, V, severe epigastric pain. SHx: smoker, drinks 18
Canimorsus Skin Rash ... Diffuse blanching rash ... related to dog bites ... +purpuric rash → ... #dermatology #clinical
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
evidence of (fatigue, rash ... eruption - Butterfly rash ... Photosensitive rash ... Malignancy (e.g. hematologic ... vein thrombosis Hematologic
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Summarized Erythema ab ... Rash is usually ... Fever + facial rash ... • Evanescent rash ... differential #diagnosis #dermatology
Pustular Skin Lesions - Differential Diagnosis Framework

What are pustules?
• Pustules < 5-10 mm + pus
• Material
Generalized itchy rash ... Fire ant bites ... Differential #Diagnosis #Dermatology
Leukemias Overview: ALL, CML, AML, APML, CLL

Acute leukemias > 20% blasts in the peripheral blood smear
Philadelphia - BCR-ABL ... response to mosquito bites ... #Leukemia #Hematology
Blood Transfusion Reactions

Immune Mediated:
 • Febrile Non-Hemolytic Transfusion Reaction (FNHTR): Most common immune reaction to transfusion.
antigens (often ABO ... maculopapular rash ... anti-HLA or anti-HNA Ab ... diagnosis #management #hematology
Erythema Ab Igne on Physical Exam

Erythema ab igne (EAI) is a skin reaction caused by chronic
Erythema Ab Igne ... Exam Erythema ab ... EAI #Erythema #Ab ... #video #skin #dermatology ... #rash