14 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Drugs (antibiotics e.g ... Viral: HSV, EBV, HIV ... HepB, HepC Bacterial ... Differential #Diagnosis #Dermatology
Causes of Neutrophilia - Increased Neutrophils - Differential Diagnosis Algorithm
Infection
 • Bacterial
 • Abscess
 • Viral
Medications
Causes of Neutrophilia ... Infection • Bacterial ... Solid Tumour (e.g ... • Metabolic disorders ... #Hematology
Causes of Splenomegaly - Differential Diagnosis Algorithm
Infectious
 • Bacterial
 • Viral (EBV)
 • Parasitic
 • Fungal
Congestive
Infectious • Bacterial ... • Thrombus (e.g ... Myeloproliferative disorders ... (eg. polycythemia ... #Hematology
Venous Thrombosis vs Arterial Thrombosis - Differential Diagnosis Framework

VENOUS THROMBOSIS

 • Acquired Risk Factors:
	- >48 hours
Hematological: - HIT ... Testosterone - Coumadin skin ... in young patients ... #pathophysiology ... #hematology #differential
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
and Platelet Disorders ... function test, ANA (e.g ... or if a primary hematologic ... disorder is suspected ... #Workup #hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
purple, hemorrhagic skin ... Ig A vasculitis/HSP ... gangrenosum • Bacterial ... Differential #Diagnosis #hematology ... #nonpalpable #dermatology
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
Eosinophil Disorders ... for secondary causes ... signs or symptoms (eg ... , skin or esophageal ... Differential #diagnosis #hematology
Nail Disorders secondary to Systemic Diseases
Nail Fold Abnormality
 • SLE
 • Scleroderma
 • Dermatomyositis
Koilonychia - Spoon-shaped
Nail Disorders secondary ... halt nail growth (e.g ... usually painful • Bacterial ... Systemic #Secondary #dermatology ... Diagnosis #Algorithm #causes
Primary Dermatological Lesions
Primary lesions are physical changes in the skin considered to be caused directly by
considered to be caused ... altered colour e.g ... . e.g. psoriasis ... a generalized disorder ... #Diagnosis #Dermatology
Cryofibrinogenemia Summary

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

Cryofibrinogenemia:
 • The precipitation of a
cryoglobulin (CG ... cryoglobulinemia Associated Disorders ... cryoglobulins • Negative causes ... • TTP, HUS and HIT ... #hematology