My child has extra bone tissue on the distal portion of 4th toe

We noticed on my 7 year olds left foot, what appeared to be a hard point at the end of his 4th toe. He says its painful to the touch, and it looks like there is an extra nail bed or bump under the nail. Originally, we took him to a dermatolgist thinking it was a topical issue, but when his foot was X-rayed, there is a visable mass at the end of his 4th toe joint

We noticed on my 7 year olds left foot, what appeared to be a hard point at the end of his 4th toe. He says its painful to the touch, and it looks like there is an extra nail bed or bump under the nail. Originally, we took him to a dermatolgist thinking it was a topical issue, but when his foot was X-rayed, there is a visable mass at the end of his 4th toe joint

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My child has extra bone tissue on the distal portion of 4th toe