Primary bone tumours in ribs are less common than tumour-like lesions. The most common solitary primary bone tumour in ribs is the chondrosarcoma (about 35%). This is followed with about the same frequency (10 to 14%) by Ewing's sarcoma, malignant lymphoma, chondroma and osteo-chondromas. The clinical features and radiological appearances of the more common tumours and tumour-like lesions in the ribs are described, and their differential diagnosis is discussed.
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