WBC ANOMALIES Flashcards
(83 cards)
Niemann-Pick Disease (NPD) is caused by a deficiency in what enzyme?
Sphingomyelinase
Niemann-Pick Disease (NPD) inheritance pattern?
Autosomal recessive
Niemann-Pick Disease (NPD) is more common in which population?
Ashkenazi Jews
Niemann-Pick Disease (NPD) affects which organs significantly?
Spleen and liver
Characteristic cell in Niemann-Pick Disease (NPD)?
Pick’s cell (Foam cell)
Description of Pick’s cell cytoplasm?
Swollen by many small lipid droplets
Life expectancy in Niemann-Pick Disease (NPD)?
Often fatal by three years of age
Gaucher Disease is caused by a defect or deficiency in what enzyme?
β-glucocerebrosidase
Most common lipidosis?
Gaucher Disease
Inheritance pattern of Gaucher Disease?
Autosomal recessive
Characteristic cell in Gaucher Disease?
Gaucher Cell
Features of Gaucher Cell cytoplasm?
Distended by glucocerebrosides
Where is the Gaucher Cell typically found?
Bone marrow
Description of Gaucher Cell nucleus?
Small, eccentric nucleus
Conditions where pseudo-Gaucher cells may be encountered?
Thalassemia, chronic myeloid leukemia, acute lymphoblastic leukemia, Non-Hodgkin lymphoma, plasma cell neoplasms
Inheritance pattern of Chediak-Higashi syndrome?
Autosomal recessive
Key feature of Chediak-Higashi syndrome in phagocytes?
Large, abnormal cytoplasmic granules
Granules in phagocytes (granulocytes and monocytes) in Chediak-Higashi syndrome are positive for what enzyme?
Peroxidase
Granules in lymphocytes in Chediak-Higashi syndrome are positive or negative for peroxidase?
Peroxidase (-)
What type of organelles are abnormally large in Chediak-Higashi syndrome?
Lysosomes
Reason for partial albinism in Chediak-Higashi syndrome?
Abnormal packaging of melanosomes
Physical characteristics associated with partial albinism in Chediak-Higashi syndrome?
Silvery hair, pale skin, photophobia
Triad of symptoms in Wiskott-Aldrich Syndrome (WAS)?
Thrombocytopenia, Immunodeficiency, Eczema
Inheritance pattern of Wiskott-Aldrich Syndrome (WAS)?
X-linked recessive