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Pediatrics · Oncology: ALL prognosis
Sample itemWhich feature in a child with ALL indicates a good prognosis?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Age 2 to 10 years with hyperdiploidy
Favourable features include age between 1 and 10 years, low WBC at presentation, female sex, hyperdiploidy and the t(12;21) translocation, and a rapid response to induction. Poor features are infancy, high WBC, t(9;22), t(4;11) and CNS disease. Risk stratification guides treatment intensity.
Option by option
A. Philadelphia chromosome positivity
Philadelphia chromosome carries a poor outlook.
B. Presenting WBC above 100,000
High WBC is a poor prognostic marker.
C. Age 2 to 10 years with hyperdiploidy (correct)
Correct. Hyperdiploidy at 2 to 10 years is favourable.
D. Age under 1 year
Infant ALL has a poor prognosis.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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