13 results
Peripheral Blood Smear Analysis
Hypochromia
Megaloblastic Anemia
Schistocytes: Microangiopathic hemolytic anemia (e.g. DIC, TTP, HUS)
Microspherocytes: Autoimmune hemolytic anemia
Sickled red
Megaloblastic Anemia ... (e.g. ... cells: Sickle cell disease ... Smear #Analysis #hematology ... #microscopy #interpretation
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
- Vasculitis, e.g ... - Vasculitis, e.g ... Microscopic polyangiitis ... #diagnosis #table ... #rheumatology #
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Chemotherapy (e.g ... iron deficiency anemia ... Autoimmune hemolytic anemia ... differential #diagnosis #hematology ... #microscopy #atlas
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
Nail Disorders secondary to Systemic Diseases
Nail Fold Abnormality
 • SLE
 • Scleroderma
 • Dermatomyositis
Koilonychia - Spoon-shaped
secondary to Systemic Diseases ... Iron deficiency anemia ... halt nail growth (e.g ... • Nephrotic syndrome ... Systemic #Secondary #dermatology
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Increased Requirement (e.g ... • Pancreatic Disease ... Myelodysplastic Syndromes ... • Liver Disease ... Algorithm #Causes #Hematology
Urine Microscopy Crystals
Uric Acid crystals:
 - Formation promoted by acidic urine
 - Seen in tumor lysis
Urine Microscopy ... in tumor lysis syndrome ... specific systemic disease ... urease-producing organisms (e.g ... Crystals #comparison #table
Causes of Fatigue - Differential Diagnosis Algorithm
Endocrine
 • Hypo/Hyperthyroidism
 • Diabetes
 • Pituitary Insufficiency
 • Adrenal
Neoplastic / Hematologic ... • Anemia • ... Obstructive Pulmonary Disease ... • Drug Abuse (e.g ... Chronic Fatigue Syndrome
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
• Malignancy (e.g ... . hematologic) ... Endocrine disorders (e.g ... vein thrombosis Hematologic ... lymphopenia, low PLT • Anemia
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
(eg, systemic juvenile ... • Infection (eg ... with leukopenia, anemia ... Diagnosis #Management #Hematology ... #Rheumatology