Two Pathologies in One: Exostosis and Enchondroma in the Same Digit of the Same Side

A 27 year old man presented with two bony lumps in the fifth toe of the right foot. Both lumps were present from early childhood. The lump in the toe was painful while both lumps were bony and the lump in the metatarsal was diagnosed to be an exostosis of the bone while the phalangeal lump was diagnosed to be an enchondroma. It is a known association to have multiple exostosis with diaphyseal bony deformities and this syndrome is called diaphyseal aclasis. However, the association of exostosis with enchondroma has been reported before but not in the same digit. This case is unique as there were no other exostoses or enchondromata detectable in this patient. No diaphyseal bony abnormalities were detected. This is a case of an unusual association of two conditions.