<s>[INST] My 12 yo daughter has a bony lump that has one on one of her metacarpals, not far from the wrist. Her plastic surgeon wants to remove and biopsy it. She referred to it as an osteo.........something. I m trying to recall the word she used. Can you help me? This has nothing to do with arthritis. [/INST] Hiyour daughter is having bony lump in one of her metacarpals not far from wrist. The possible differential being ganglion cysts, carpal boss, Inchon Chat Doctor.  The most common being ganglion cyst. However before going for removal and biopsy, the best thing is to investigate to know exactly from where it is arising, extension of lesion and to characterize the lesion. Based on the imaging findings we can plan the treatment. Go for radiograph wrist hand(APA lateral) and ultrasonogram. For further queries you can write. Thank u best regards Vasundhara </s>