• Benign cartilaginous tumor, usually in adults in hands or feet; may recur locally

• 3 year old boy with slowly enlarging painless mass arising in retroaxillar region of hand (Tunis Med 2011;89:379)
• 42 year old man with swelling in foot (Oman Med J 2009;24:296)
• 43 year old man with soft tissue tumor of thumb (Tunis Med 2010;88:750)

Thumb tumor

Foot tumor

• Lobulated, hyaline and calcified

Foot tumor

• Lobulated on low power
• Plump tumor cells with fine punctate calcification
• Nuclear hyperchromasia common
• May have focal fibrosis
• May have osteoclast-like giant cells, histiocyte-like cells, vacuoles resembling lipoblasts

Foot tumor

Foot tumor

• Calcifying aponeurotic fibroma
• Chondrosarcoma: rare in hands and feet, infiltrative and destructive, high grade

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