68 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 ... Viral: HSV, EBV, HIV ... Nodosum #Mnemonic #Causes ... Differential #Diagnosis #Dermatology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Risks factor for HIV ... K), H. pylori test ... thyroid function test ... or if a primary hematologic ... #Workup #hematology
Positive Varus Stress Test in LCL Injury

Interesting knee injury in a young basketball player who landed
Positive Varus Stress Test ... Because we saw him ... Here, we show his ... dr.dold.md #Varus #StressTest ... PhysicalExam #Sports #Orthopedics
Bayesian combination of 4T score with Heparin PF4 antibody titer to obtain the post-test probability of
obtain the post-test ... probability of HIT ... Bayesian #Diagnosis #Hematology
Causes of Arterial and Venous Thrombosis - Differential Diagnosis Framework

STRUCTURAL:
 - PFO: paradoxical emboli
 - Popliteal
Causes of Arterial ... artery aneurysm: Causes ... APLS:PLT ↓ HEMATOLOGIC ... neoplasms - PNH - HIT ... Diagnosis #clots #hematology
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
Causes of Bone/Joint ... predispose to other orthopedic ... common sites: hip ... differential #diagnosis #causes ... #hematology
Hemolysis - Diagnostic Algorithm and Causes

Increased red cell production: 
 • Increased Reticulocytosis/polychromasia 
 • Erythroid
Algorithm and Causes ... #Differential #Causes ... #Workup #Hematology ... GrepMed Recommended Text
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
• Secondary Causes ... Ig A vasculitis/HSP ... Differential #Diagnosis #hematology ... #rheumatology # ... #nonpalpable #dermatology
Kaposis Sarcoma: Darkly pigmented macules caused by this malignancy. Seen most commonly in
patients with HIV infection.

Charlie
pigmented macules caused ... patients with HIV ... Clinical #Photo #Dermatology
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... Quinidine • HIT ... Diagnosis #Algorithm #Causes ... #Hematology