148 results
Idiopathic CD4 Lymphopenia (ICL) / Lymphocytopenia 

DIAGNOSTIC CRITERIA FOR ICL
 • Persistent CD4 T-cell lymphopenia
 •
• Persistent CD4 ... T-cell count of ... chemotherapy) • Genetic syndromes ... ICL #diagnosis #hematology ... #Differential #Causes
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... : • Syndrome of ... Advanced HIV (CD4 ... cell counts less ... Hematologic malignancy
Isolated Hyperbilirubinemia - Differential Diagnosis Algorithm
Direct Hyperbilirubinemia: Dubin-Johnson Syndrome, Rotor Syndrome
Indirect Hyperbilirubinemia: 
 - Trauma, Hematoma,
Dubin-Johnson Syndrome ... , Rotor Syndrome ... , Reticulocyte Count ... , Reticulocyte Count ... Diagnosis #Algorithm #hepatology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Causes of Thrombocytopenia ... Prior platelet count ... decreased PLT count ... or if a primary hematologic ... #Workup #hematology
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 ... Sarcoidosis or Lofgren's syndrome ... Nodosum #Mnemonic #Causes ... Differential #Diagnosis #Dermatology
Causes of Thrombocytopenia.
Platelet counts may be depressed because of decreased production or due to increased platelet
Causes of Thrombocytopenia ... Platelet counts ... #Diagnosis #Hematology ... #Differential #Causes
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
Decreased CD4 ... counts and a raised ... CD4+/CD8+ ratio ... Dermatomyositis #rheumatology ... #dermatology #diagnosis
4-T Score for the Likelihood of Heparin Induced Thrombocytopenia
 - Thrombocytopenia - Compare the highest platelet
count
highest platelet count ... of declining counts ... Other potential cause ... Likelihood #Diagnosis #Hematology
Thrombocytosis - Differential Diagnosis
Platelet Count > 450
Reactive:
 • Anemia/blood loss (Fe deficiency)
 • Infection/Sepsis
 • Non-infectious
Diagnosis Platelet Count ... Differential #Diagnosis #causes ... #Platelets #hematology
Important causes of diarrhea in people with HIV/AIDS
Severity, chronicity/persistence will depend On CD4 count & sites
Important causes ... will depend On CD4 ... count & sites of ... Differential #Diagnosis #Causes