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A 6-year-old boy is brought to the office due to fatigue and abdominal distension. The parents state that the patient bruises easily and appears pale. Physical examination shows subconjunctival pallor and several ecchymoses on the boy's extremities. His abdomen is distended with nontender massive splenomegaly and moderate hepatomegaly. Laboratory studies reveal that his hemoglobin level is 8 g/dL, leukocyte count is 3,800 cells/mm3, and platelet count is 90,000 cells/mm3. Bone marrow aspirate results are shown in the exhibit. Which of the following is the most likely diagnosis?
External Locus
A belief that one's successes or failures result from external factors beyond one's control, contrasting with an internal locus of control.
Control
The capability to sway or steer the actions of people or the flow of occurrences.
Vicious Cycle
A sequence of reciprocal cause and effect in which two or more elements intensify and aggravate each other, leading to a deteriorating situation.
Self-concept
An individual's perception of themselves, encompassing their beliefs, feelings, and self-awareness.
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