QUANTITATIVE DISORDERS Flashcards
absolute leukocyte counts >11.0x10^9/L
Leukocytosis
absolute leukocyte counts <3.0x1069/L
Leukopenia
Absolute neutrophil count: >7.0 – 8.0x10^9/L in adults, 8.5x10^9/L in children
Neutrophilia
Normal relative neutrophil count is___
50-70%
neutrophilia can be __.
pathologic or physiologic
Pathologic cause of Neutrophilia
infection:
bacterial, parasitic, fungal (actinomycosis), viral (varicella, variola, rabies, herpes zoster),
Pathologic cause of Neutrophilia
Malignancy
neoplastic growth
Pathologic cause of Neutrophilia
Inflammation
: serosal, visceral, blood cell destruction, post-traumatic, thermal injury, chemicals/drugs
Pathologic cause of Neutrophilia
Metabolic disorders:
diabetes, renal dysfunction, liver disease
Pathologic cause of Neutrophilia
drugs:
Corticosteroids, Lithium
Physiologic: (usually transient) cause of Neutrophilia
o Physical stimuli:
exercise, excessive temperature changes, nausea,
vomiting, pregnancy, labor
Physiologic: (usually transient) cause of Neutrophilia
Emotional stimuli:
rage, panic, stress
Neutrophilia will always be evaluated using __
absolute value.
The Absolute Neutrophil Count (ANC) determine by adding the numbers of ___ and __
segmented and band neutrophil.
Decreased count of neutrophil.
Neutropenia
Most common type of leukopenia
Neutropenia
Absolute neutrophil count for neutropenia
<1.75-1.8x109/L
Agranulocytosis
extreme neutropenia (<0.5x109/L)
Causes of neutropenia:
- Decreased neutrophil production
- Inherited stem cell disorders: Fanconi’s syndrome
Acquired stem cell disorders:
chemical toxicity, marrow replacement,
nutritional deficiencies, cytotoxic drugs
Increased neutrophil destruction
Infections:
bacterial (typhoid, parathypoid, brucellosis) -
Infectious hepatitis, infectious rubella
Increased neutrophil destruction
Immune reactions:
neonatal isoimmune neutropenia (maternal IgG),
autoimmune
Under Felty’s syndrome is SANTA.
S – Splenomegaly
A – Anemia
N – Neutropenia
T – Thrombocytopenia
A – Arthritis
Drug-induced neutropenia
amidopyrine, cephalosporins
Increased sequestration in neutropenia
associated with splenic enlargement, increased
margination
Pseudoeutropenia in neutropenia
after injection of endotoxin, hypersensitivity,
hypothermia
Absolute eosinophil count:
0.4x10^9/L
Major function of eosinophil
Granulation where substance releases the damage of organism
Causes of eosinophilia:
o Infestation by tissue
invading parasites
Causes of eosinophilia:
Allergic reactions:
respiratory (asthma, hay fever) skin disorder (psoriasis,
eczema)
Causes of eosinophilia:
Pulmonary disorder:
Loeffler’s syndrome, PIE (pulmonary infiltrates with eosinophilia) tropical eosinophilia
Causes of eosinophilia:
Gastrointestinal disorders:
ulcerative colitis Infections: scarlet fever, HIV,
fungal
Causes of eosinophilia:
Miscellaneous disorders:
familial, irradiation, periarteritis nodosa
Also seen in cases of HIV infection, scarlet fever, and fungal infection
Eosinophilia
Absolute eosinophil count for Eosinopenia
<0.09x10^9/L
is eosinopenia
Difficult to detect using routine differentials and total leukocyte count ?
yes
Most common cause of eosinopenia is the presence of
malignant myeloproliferative
myoplasm
Associated with condition Eosinopenia:
Marrow hypoplasia
Causes of eosinopenia:
o Acute bacterial infections
o ACTH administration (thorn’s test)
Basophilia
Absolute basophil count
> 0.15x10^9 /L
Usually associated with eosinophilia.
Basophilia
Most common cause of Basophiliais the presence of
malignant myeloproliferative neoplasm.
Causes of Basophilia:
o Reactive basophilia: hypersensitivity
o Hypothyroidism
o Ulcerative colitis
o Estrogen therapy
Basopenia Caused by:
acute infections, stress, hyperthyroidism, increased levels of glucocorticoids (sabi ni madam, glucocorticosteoids)
Monocytosis
Absolute monocyte count:
> 0.9x10^9 /L or until 1.0x10^9/L in adults and
3.5x10^8/L in neonates
Monocytosis is Caused by:
Bacterial infections:
tuberculosis, subacute bacterial endocarditis (SBE),
syphilis
Monocytosis is Caused by:
Inflammatory responses:
surgical trauma, tumors, collagen vascular, disorders gastrointestinal disease
relative caused of monocytosis
Recovery from neutropenia (relative)
another cause of Myeloproliferative disorders
monocytosis
monocytosis is Associated with:
neutropenic disorder.
Monocytopenia
Absolute monocyte count:
<0.02x10^9/L
Decrease in monocyte.
Monocytopenia
Very rare condition that do not involve cytopenia found in patient receiving
steroid therapy.
Monocytopenia
Monocytopenia
Caused by:
after administration of glucocorticoids, during overwhelming infections that also causes neutropenia.
Lymphocytosis
Absolute lymphocyte count in:
o Adult: >4.5x10^9 /L
o Infants and young children: >10x10^9 /L
o Children older than 2 weeks and younger than 8 years have higher lymphocyte
Relative lymphocytosis:
: increase in the percentage of circulating lymphocytes, does not necessarily reflect a true or absolute increase in lymphocytes.
Reactive/atypical/variant lymphocytes:
lymphocytes seen in non-malignant
disorders, normal lymphocytes reacting to a stimulus (infection, etc.).
LEUKOCYTE DISORDERS
I. Morphological Abnormalities of Leukocytes
II. Non-Malignant Leukocyte Disorders
III. Malignant Leukocyte Disorders
The segmentation of neutrophil is greater than 2-5 lobes.
Hypersegmented Neutrophil
Has a normal size 4-6 lobes in the nucleus found in the stage of recovery from infection.
Polycyte
Larger than normal neutrophil and has 5-10 nuclear lobes.
Macroplocyte
Seen in ___, the hypersegmented neutrophils are one of the hallmark of this condition. (Macroplocyte)
pernicious anemia
Nucleus becomes smaller and denser
Pynknocyte
Nuclear segments disappear, leaving several balls of dense chromatin
Pynknocyte
Virocyte or Atypical Lymphocyte
Also called as
Downey type cell or Turk Irritation cell.
Cell has a chromatin arrangement which gives the cell a “Moth-eaten” or
“Tunneled appearance” or “Swiss-cheese”
Virocyte or Atypical Lymphocyte
cell has prominent azurophilic
granules
Virocyte or Atypical Lymphocyte
seen in infectious mononucleosis, viral hepatitis, viral pneumonia, and
herpes simplex infections.
Virocyte or Atypical Lymphocyte
sunny side up
Virocyte or Atypical Lymphocyte