Enchondroma is often found on the long bones, and very frequently upon the bones of the hands or on the metatarsal bones.
Figure 244 represents an enchondroma of the thumb.

Multiple enchondromata are most peculiar, and may attain enormous sizes.
Whittaker describes a farmer of forty who exhibited peculiar tumors of the fingers, which he calls multiple osteoecchondromata.

His family history was negative.

He stated that at an early age he received a stroke of lightning, which rendered him unconscious for some time.

He knows of nothing else that could be in possible relation with his present condition.