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Table 1 Demographic data cases 1–5

From: Rare cytogenetic abnormalities and their clinical relevance in pediatric acute leukemia of Saudi Arabian population

Parameter

Case 1

Case 2

Case 3

Case 4

Case 5

Age (years)

4

7

11

18

3

Gender

Female

Female

Male

Male

Male

Clinical

Cervical Lymphadenopathy and leucocytosis

Fever, abdominal distention, hepatosplenomegaly

Vomiting, diarrhoea, lower limb weakness

Epistaxis, ecchymosis skin lesions

Fever, lymphadenopathy and hepatomegaly

WBC (109/L)

137

18

100,8

221

18.8

HB (g/dl)

5.2

4.8

7.2

11

8.7

PLT (X109/L)

9

53

109

34

239

PB blasts

80%

60%

No blasts

40%

6%

Bone marrow aspirate

Hypercellular Blasts 90%

B-ALL phenotype

Hypercellular

Blasts 80%

B-ALL phenotype

40% blasts and 50% eosinophils

40% blasts on PB and 70% blasts on BM

Hypercellular

Blasts 75%

Myelomonocytic proliferation with M4 AML

Blasts

90%

60%

40%

70%

75%

Disease

B-ALL

B-ALL

B-ALL

T-ALL

AML FAB M4

Cytogenetic analysis (karyotype/FISH)

46, XX,1-, 8-, 9-, 11-, 12-, 19-, and 22- in 80% of cells)

2n-,44, XX,- 4, −8). t (12; 17).

ETV/RUNX 1.

Loss of der (12-)

MYC gene rearrangement.

t (5;14)

Negative: PDGFRA PDGFRB FGFR1

46,XY,t(3;11;19)

(q21; q23; q13.1).

MLL gene rearranged; extra MYC gene

48,XY,+ 8,+ 8,t(11;17)

(p15;q21) [14]/47, idem,-Y

Chemotherapy

Very high risk ALL chemotherapy protocol (COG AALL0031) and intensive consolidation

Standard risk chemotherapy protocol (COG AALL0331).

high-risk protocol COG AALL0232 with high dose methotrexate for maintenance

Dana Farber then FLAG-Ida salvage chemotherapy high dose

MRC AML12 protocol.

Survival

Partial remission

Complete remission status achieved

Complete remission

Relapsed and demised

Death due to multiorgan failure