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Orthopaedics · Paediatric orthopaedics: hemihypertrophy and tumour screening
Sample itemA 4-year-old has isolated hemihypertrophy of the right leg with a limb-length discrepancy. Which surveillance is recommended in this child?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Serial abdominal ultrasound for embryonal tumours
Isolated hemihypertrophy and overgrowth syndromes such as Beckwith-Wiedemann syndrome carry a risk of embryonal tumours, especially Wilms tumour and hepatoblastoma, so regular abdominal ultrasound is advised in early childhood in addition to orthopaedic management of the discrepancy.
Option by option
A. Serial thyroid function tests
Thyroid dysfunction is not linked with this overgrowth.
B. Serial abdominal ultrasound for embryonal tumours (correct)
Correct. Wilms tumour and hepatoblastoma are the recognised risks.
C. Annual echocardiography
Echocardiography is not a recognised screening need in isolated hemihypertrophy.
D. Repeat skeletal survey for fractures
Fractures are not the concern in overgrowth, which is not a bone fragility condition.
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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