[Myxochondrosarcoma of the hand].

First description of repeated recurrence of a myxochondrosarcoma of the second metacarpal, most probably beginning as a central chondrosarcoma and within few months, after destroying the cortex, spreading into the soft tissues as a myxosarcoma. As it consisted mainly of chondroid material it is to be classified as a chondrosarcoma while histologically it showed small spindle cell and angiomatous areas. The rarity, pathological anatomy and clinical therapeutic experience with chondrosarcoma oft the hand with its greater tendency to metastasize from there than from other locations are discussed. The morphological differences between the common secondary myxoid degeneration of chondrosarcoma and the rare primary myxosarcoma are accentuated.