56 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Mnemonic NO cause ... Drugs (antibiotics e.g ... Sarcoidosis or Lofgren's syndrome ... Differential #Diagnosis #Dermatology
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Toxic Damage (e.g ... Displacement (e.g ... Non-lmmune: • HELLP Syndrome ... Foreign Surface (e.g ... #Hematology
Characteristic features of the rash are:

-Rough texture (like sandpaper)
-Worse in the skin folds e.g. groin, axilla,
-Worse in the skin ... folds e.g. groin ... Pastia’s lines) #Clinical ... #Dermatology #Peds
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
(usually IgG) (e.g ... (usually IgM) (e.g ... deficiencies (e.g ... Membrane defects (e.g ... differential #diagnosis #hematology
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
Causes of Thrombocytosis ... inflammatory disorders (e.g ... Myelodysplastic syndrome ... Differential #Diagnosis #Causes ... #hematology #secondary
Causes of Anemia with Low Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased Heme Synthesis or
Causes of Anemia ... Iron Deficiency (Eg ... Other • e.g ... HgbE, HgbC, etc. ... #Hematology
Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS) Syndrome Treatment
Stop offending agents:
 • List as allergies
Symptoms (DRESS) Syndrome ... Methylprednisolone 0.5 - 1.5 mg/kg ... cyclosporine, IVIG etc ... • Skin: topical ... Treatment #Management #dermatology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Causes of Thrombocytopenia ... function test, ANA (e.g ... (CVID, WAS), (neurologic ... or if a primary hematologic ... #Workup #hematology
Nikolsky's Sign in Toxic Epidermal Necrolysis (TEN)

Nikolsky's sign is a clinical dermatological sign which is present
Nikolsky's sign is a clinical ... Stevens-Johnson Syndrome ... syndrome, caused ... Nikolskys #Sign #TEN #Dermatology ... PhysicalExam #Video #Clinical
SAPHO Syndrome Summary

What?
SAPHO syndrome is a rare chronic inflammatory disorder of bone, joint, and skin characterized
Rheumatic pain Clinical ... Rule out other causes ... antiinflammatory properties e.g ... Tetracyclines etc ... diagnosis #management #Dermatology