3. A 39 yr male patient came with c/o
abdominal pain-2 week in duration
vague dragging pain
associated with fullness of abdomen
no aggravating or
relieving factors
4. h/o fatigue, fever ,increased sweating,early
satiety + ,
h/o loss of appetite +
No h/o loss of weight, no h/o bleeding tendency
PAST h/o -> No h/o Tb/HTN/DM
PERSONAL h/o -> consumes alcohol occasionally
P/A –mild distention of abdomen+
moderate splenomegaly(+)
mild hepatomegaly
Sternal tenderness was present .
No lymphadenopathy .
5. Hemoglobin: 8.5 g/dl
RBC series : Moderate anisopoikilocytosis .
Predominantly normocytes are seen . Few
macrocytes and tear drop cells seen .
Polychromasia also seen .
6. WBC Series :
Total Leucocyte count is
1.80 lakh cells / cumm.
Differential count :
Blasts:02%
Promyelocyte : 03%
Myelocyte :25 %
Metamyelocyte : 17%
Neutrophils (including band cells):39%
Lymphocytes :01%
Eosinophils;04%
Monocytes :02%
Basophils :07%
Shift to left seen .
Platelets :1.8 lakh /cumm
No hemoparasite seen .
Impression : Peripheral smear suggestive of
Chronic Myeloid leukemia .
10. Platelets showed
variation in size .
Few platelets
lacked
granulation.with
targetoid
appearance.
Disturbed platelet
function.
11. Cellularity :Markedly hypercellular
(95 %)
M:E ratio : 12:1
Erythroid series : Dimorphic .
12. Myeloid series : Blasts 02% ,
Promyelocyte 02% ,
Myelocytes 25% ,
Metamyelocytes 21%
Neutrophils including band cells 29% .
Eosinophils 06%
Basophils 13 %
lymphocyte 02% .
Megakaryocytes :Slighty Increased in number
Plasma cells :within normal limits.
13. Megakaryocytes are
increased in number
with focal clustering .
Megakaryocytes are
smaller and
hypolobated : ‘Dwarf
forms ’.
Evidence of
dysmegakaryopoiesis is
seen.
14. A 38 year old female was admitted in medical ward with
the complain of Fever since one month . It was of
moderate grade not associated with chills or rigor .
She had cough along with expectoration since one month .
Also she complained of increased frequency of micturition.
Urine Culture :Positive for E.coli.
P/A: No hepatomegaly, no splenomegaly
15. Hb: 7.4 g/dl
RBC series : Mild anisopoikilocytosis
moderate hypochromia
.Predominantly microcytic
hypochromic cells seen.Few pencil
cells , tear drop cells seen .
.
16. WBC Series : Total Leucocyte count is
56,000 cells / cumm.
Differential count : Blasts:00
Promyelocyte : 01%
Myelocyte :06%
Metamyelocyte :19%
Neutrophils (including band cells):56 %
Lymphocytes :09%
Eosinophils;03%
Monocytes :04%
Basophils :02%
Shift to left seen.
Platelets :1.8 lakh /cumm
No hemoparasite seen .
19. Leukocytosis, defined as an increase in white
blood cell (WBC) count, is a common finding
with a broad differential diagnosis,
encompassing both benign and malignant
entities.
Classification and diagnosis of leukocytosis
require confirmation of automated
differential counts and examination of the
peripheral blood smear.
20. Further if increased blasts are seen then it
should prompt a workup for acute leukemia.
For confirmation of reactive leucocytosis and
chronic leukemias we require flow
cytometric test, immunophenotyping and
bone marrow examination with cytogenetic
and molecular genetic tests.
21. 1.Brief introduction of
Myeloid Leukemoid reaction
Chronic Myeloid Leukemia
Chronic Neutrophilic leukemia
2.Differentiation between above three on the basis of
Peripheral smear,
Bone marrow aspirate picture
Bone marrow biopsy picture
LAP score
Cytogenetics
Immunophenotyping
3.Brief discussion of Lymphoid leukemoid reaction and
eosinophilic leukemoid reaction .
22. Leukemoid reaction — a secondary
reversible significant increase in the number
of leukocytes in response to a stimulus,
accompanied by the appearance in the blood
of immature forms of leukocytes.
It is defined by a leukocyte count greater
than 50,000 cells/μL, caused by reactive
causes outside the bone marrow
23. As reactive changes in blood are similar to
hematological malignancies, it is important
to differentiate them from leukemia.
Careful history, good physical examination,
and limited imaging studies may assist in
revealing the underlying cause of leukemoid
reaction .
24. The diagnosis of Myeloid Leukemoid
Reaction is based on the exclusion of chronic
myelogenous leukemia (CML) and
chronic neutrophilic leukemia (CNL).
25. Chronic Neutrophilic Leukemia is a rare,
distinct myeloproliferative syndrome with a
poor prognosis.
The differential diagnosis between
Leukemoid Reaction and Chronic Neutrophilic
Leukemia may be difficult or even
impossible because both conditions share
identical morphological features, including a
raised LAP score and the absence of the
bcr/abl translocation .
26. MYELOID TYPE LEUKEMOID REACTION :
Leukemoid reactions of myeloid type develop in
various infectious and noninfectious processes.
ACUTE BACTERIAL INFECTIONS:
Pneumonia,
Pyogenic meningitis
Cellulitis
Infected burns
Diphtheria
27. ACUTE STRESS STATES :
Post surgery
Post hemorrhage
Myocardial Infarction
MISCELLANEOUS :
Steroid therapy
Gout
Rheumatoid arthritis
29. In leukemoid reaction the clinical course is related to cause .
In CML clinical course is :Progressive .
The progression of Ph+ CML that occurs when the
condition is left untreated is described in three phases:
Chronic
Accelerated Blast
30. LEUKEMOID
REACTION
CML CNL
Features of
underlying
cause
• Fatigue, lethargy, weight loss,
sweats
• Splenomegaly in >75 percent; may
cause (L) hypochondrial pain,
satiety and sensation of abdominal
Fullness.
• Gout, bruising/bleeding,
and occasionally
priapism
• Signs include moderate to large
splenomegaly (40% >10 cm),
hepatomegaly (2%),
Fatigue,
lethargy,
weight loss .
Hepato-
spenomegaly
present.
31. Leukemoid Reaction CML CNL
TLC is > 50,000
cells/cumm .
TLC ranges from
30,000 cells/cumm to
10 lakh cells /cumm.
TLC > 25,000 cells
/cumm .
32. LEUKEMOID REACTION CML CNL
Leucocytes consist mostly of
mature neutrophils.
The differential count discloses a
marked left shift, as
evidenced by the presence of
myelocytes and metamyeocytes .
In addition PS discloses toxic
granulation, Doëhle bodies, and
cytoplasmic vacuoles in
the neutrophils of patients with an
LR attributed to an
infection.
In CML, there are
more immature
cells, absolute
basophilia , and
Eosinophils.
Marked
neutrophilia with
fewer
metamyelocytes
and myelocytes
(<5%).
Immature
granulocytes:
promyelocytes,
myelocytes,
metamyelocytes are
<10 % .
Blasts <1% .
37. Leukemoid
reactiom
CML( Chronic
phase )
CNL
Increased
cellularity with
myeloid
hyperplasia .
But NO marrow
fibrosis
Markedly
hypercellular. M:E
ratio 15:1 to 32: 1.
Myeloblast <5 %.
Megakaryocytes
show clustering and
Dwarf forms.
Pseudogaucher cells
may be seen
Hypercellular ,
majority are
neutrophils , M;E
ratio > 20:1 ,
Megakaryocytes are
normal in number .
39. Marrow is
hypercellular with
granulocytic
predominance.
Megakaryocytes are
increased in number
with abnormal
morphology.
Increase in reticulin
fibrosis.
Blasts less than 5%.
40. Scattered amongst
marrow cells are
macrophages with
linear striations or
granular cytoplasm
(Pseudo-Gaucher
cells ) , some with
sea blue colored
granules resembling
Sea-blue histiocytes .
41. Two types of CML
Granulocytic CML
Granulocytic –
megakaryocytic
CML.
45. In CML there is increase in
uric acid level
lactate dehydrogenase.
Increase in the level of angiogenic factors
46. Entire chromosomal complement is
evaluated to identify philadelphia
chromosome and other abnormalities.
Can be done on both peripheral blood and
bone marrow .
Cytogenetics cannot identify complex
translocations.
47. The presence of
the Philadelphia
chromosome –
shortened
chromosome 22.
t(9,22)( q34,q11)
48. Nearly 95 % patients demonstrate Ph chromosome .
For CML patients who are cytogenetically
Ph-chromosome–negative (Ph-) the following special
techniques can be used to detect BCR-ABL Fusion:
• Fluorescence in situ hybridization (FISH)
• Reverse transcriptase polymerase chain reaction
(RT-PCR) %
51. Detects different length products
corresponding to chimeric BCR-ABL proteins
of 190,210 and 230 kda.
So helps in distinguishing CML from ALL and
CNL.
54. Leukemoid
reaction
CML CNL
Peripheral
blood
Mature
neutrophils,
marked “left shift”
Immature cells,
basophils, and
eosinophils
Marked
neutrophilia, no
immature cells
Bone
marrow
Myeloid
hyperplasia,
orderly
maturation, normal
morphology
Basophilia,
eosinophilia,
monocytosis, slight
increase in blasts
and reticulin
fibrosis.
Similar
morphology with
LR, packed bone
marrow, slight
increase in
reticulin .
LAP score High Low High
61. -Left: Atypical
lymphocytes-> viruses
irritate the lymphocytes
caused them to become
bigger and nucleus
changes shape->
cytoplasm gives shape of
"ballerina skirt cells"
-Right: Small
lymphocytes-> Normal,
small, rounded, slightly
bigger than RBC, scant
cytoplasm, round
mature nuclei
66. Persistent eosinophilia >1500/cumm.
Myeloblasts <20% in blood and bone marrow .
There is multilobation,vacuolation and
degranulation of eosinophils .
67. INFECTIONS:
Tuberculosis
Kala azar
Malaria
Trypanosomiasis
Bacterial
endocarditis
Needs to be
differentiated
from :
Chronic Myelo-
monocytic
Leukemia
AML M4 and M5
Hodgkin’s disease
Notas del editor
Infections(sepsis, purulent processes, lobar pneumonia, dysentery), Severe injuries and acute hemolysis.
Infections
Intoxication
Metastatic tumors of the bone marrow,
ionizing radiation
Rarely paraneoplastic syndrome
Intoxication (therapeutic intoxication, including sulfanilamide drugs, uremia),
Metastatic tumors of the bone marrow,
ionizing radiation (radiotherapy).
Sternal tenderness,
Splenomegaly
Hepatomegaly
Easy bruising
Weight loss
Priapism
LAP is an enzyme present in the cytoplasmic microsomes of neutrophils, bands, metamyelocytes, and myelocytes,but not in lymphocytes or monocytes. Immature neutrophils, such as those observed in CML, have decreased LAP scores.
stimulated neutrophils of an LR have
increased LAP scores [1]. In CNL, low LAP scores are the
exception [22].
Uses fluorescent dye probes to bind to specific pieces of DNA
For CML 2 probes may be used, 1 to bind to the BCR gene, and 1 to bind to the ABL gene
Reveals whether BCR and ABL genes are next to each other (as in the Philadelphia chromosome), or on separate chromosomes (as in normal cells)
. Etiology:
Helminthic infestation — opisthorchiasis, fascioliasis, strongyloidiasis, trichinosis, and others;
Eosinophilic pneumonia (eosinophilic infiltrates in the lung),
Allergic (Antibiotics, drug dermatitis, severe universal dermatitis, etc.),
Allergic large eosinophilia of unknown origin (duration 1 — 6 months.)