Question
Diagnose the bone tumor shown in the photograph below ?
A. Osteosarcoma.
B. Giant cell tumour.
C. Ewing’s sarcoma.
D. Osteoid osteoma.
Show Answer
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Correct Answer » B
Explanation
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The appearance as shown in the photograph above represents Soap bubble appearance, seen in cases of Giant cell tumour.
Giant cell tumours (GCTs) of bone, also known as osteoclastomas, are relatively common bone tumours, usually benign which are arising from metaphysis and typically extending into the epiphysis of the long bones.
GCTs are common, comprising 18-23% of benign bone neoplasms and 4-9.5% of all primary bone neoplasms . They almost invariably (97-99%) occur when the growth plate has closed and are therefore typically seen in early adulthood, with 80% of cases reported between the ages of 20 and 50, with a peak incidence between 20 and 30 .There is overall a mild female predilection, especially when located in the spine. However, malignant transformation is far more common in men (M:F of ~3:1).
