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OrthoVellum

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Not affiliated with the Royal Australasian College of Surgeons.

Oncology
intermediate
X-Type

Bone Island (Enostosis) MCQ

bone-island

A 45-year-old woman undergoes an abdominal CT for investigation of renal colic. Incidentally, a 12mm dense sclerotic lesion is identified within the left iliac wing. The lesion has a characteristic appearance with radiating spicules extending into the surrounding trabecular bone, giving a "thorny" or "brush-like" border. The kidney stone is confirmed and treated. **What is the MOST appropriate management for this bone lesion?**

Mark each as TRUE or FALSE

A

Urgent bone biopsy to exclude osteoblastic metastasis

B

Whole-body bone scintigraphy to assess for multiple lesions

C

No further investigation required; this is a classic bone island (enostosis)

D

MRI of the pelvis with gadolinium to assess for soft tissue extension

E

PET-CT to exclude metabolically active malignancy

Answer the questions to see explanations

Click T (True) or F (False) for each option