Table 1 Table showing the most common benign and malignant lesions of the foot and ankle subdivided by age group as described by Kransdorf [7, 8]
From: MRI imaging of soft tissue tumours of the foot and ankle
Age group | Benign lesions | % | Malignant lesions | % |
|---|---|---|---|---|
0–5 years | • Granuloma annulare • Fibromatosis • Haemangioma | 30 25 11 | • Fibrosarcoma • DFSP • MPNST • Rhabdomyosarcoma | 45 18 18 18 |
6–15 years | • Fibromatosis • Granuloma annulare • Haemangioma | 23 13 13 | • Synovial sarcoma • DFSP • Rhabdomyosarcoma | 21 17 9 |
16–25 years | • Fibromatosis • GCTTS • Granuloma annulare • Fibrous histiocytoma | 22 14 12 12 | • Synovial sarcoma • Clear cell sarcoma • Fibrosarcoma • DFSP | 30 11 8 8 |
26–45 years | • Fibromatosis • Fibrous histiocytoma • PNST • GCCTS | 25 13 11 9 | • Synovial sarcoma • Clear cell sarcoma • Pleomorphic undifferentiated sarcoma | 26 13 13 |
46–65 years | • Fibromatosis • Fibrous histiocytoma • Lipoma • PNST | 25 13 11 8 | • Pleomorphic undifferentiated sarcoma • Synovial sarcoma • Leiomyosarcoma • Kaposi’s sarcoma | 25 17 12 9 |
66 and over | • Fibromatosis • PNST • Fibrous histiocytoma • Chondroma | 14 13 11 9 | • Kaposi’s sarcoma • Pleomorphic undifferentiated sarcoma • Leiomyosarcoma | 37 19 15 |