Maffucci's syndrome is a rare genetic disorder characterized by benign (noncancerous) overgrowths of cartilage, bone deformities and hemangiomas.
The child appears normal at birth, but before puberty, a hard, small, localized outgrowth appears, usually on a finger or toe. This is soon followed by other nodules that involve the arms or legs.
Benign lesions are often found in certain bones of the hands and feet. Skeletal malformations may include:
- Legs that are disproportionate in length
- Abnormal side-to-side curvature of the spine (scoliosis)
In many cases, bones may tend to break easily. In most cases, hemangiomas appear at birth or during early childhood, and may be progressive.