63 results
Wellens' Syndrome on ECG

A 66-year-old man with hypertension and hyperlipidemia presents after an episode of severe
on ECG A 66- ... while walking to work ... A 12-lead ECG is ... #ECG #EKG #Electrocardiogram ... #Clinical #Cardiology
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
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Mnemonic NO cause ... Drugs (antibiotics e.g ... Sarcoidosis or Lofgren's syndrome ... Viral: HSV, EBV, HIV ... Differential #Diagnosis #Dermatology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Diagnosis and Workup ... Risks factor for HIV ... function test, ANA (e.g ... or if a primary hematologic ... #Workup #hematology
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
Proposed Algorithm for Diagnosing Sarcoidosis
Highly suggestive Clinicoradiological Findings → Clinical diagnosis (without biopsy) e.g. Löfgren's syndrome
Suggestive
without biopsy) e.g ... Löfgren's syndrome ... and/or cytology (e.g ... of alternative causes ... Algorithm #diagnosis #Workup
Hodgkin's Lymphoma vs Non-Hodgkin's Lymphoma - Comparison

Hodgkin's Lymphoma:
 • Epidemiology: young adults 20-30, older 50-70
 •
Epidemiology: young ... Immunosuppression (e.g ... Autoimmune diseases (e.g ... Malignancies (eg ... #differential #hematology
Raynaud's Syndrome - Washing off under hot water.
Raynaud phenomenon is an exaggerated vasoconstrictive response of the
Raynaud's Syndrome ... and arterioles (e.g ... #Raynauds #Syndrome ... disease #phenomenon #clinical ... fingers #hands #rheumatology
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
Raynaud's Syndrome - Washing off under hot water wath.

Raynaud phenomenon is an exaggerated vasoconstrictive response of
Raynaud's Syndrome ... and arterioles (e.g ... #Raynauds #Syndrome ... disease #phenomenon #clinical ... fingers #hands #rheumatology