9Chen AH, Moreano EH, Houston B, et al. Chondroid syringoma of the head and neck: Clinical management and literature review [ J ]. Ear Nose Throat J,1996,75 (9) :104 -108.
10Barnett MD, Wallack MK, Zuretti A,et al. Recurrent malignant chon- droid syringoma of the foot: A case report and review of the literature [J]. Am J Clin Oncol,2000,23(3) :227 -232.