[Clinical analysis of 35 cases of adult rhabdomyosarcoma of nasal cavity and sinuses].

Objective

To investigate the clinical characteristics and prognostic factors of adult rhabdomyosarcoma（RMS） of nasal cavity and sinus. Method:There were 35 adult patients with RMS, including 22 with embryonal type and 13 with acinar type. Surgery + chemoradiotherapy（17 cases）, surgery + radiotherapy（6 cases）, surgery + chemotherapy（7 cases）（4 cases of seed implantation after surgery and chemotherapy）; Five patients were treated with antitumor drugs instead of surgery. Result:The study follow-up 9-62 months, adult nasal sinuses RMS total 5 years survival rate was 2.9%, among them the IRS stage>Ⅱ period, the infiltration of the skull base tumor, local lymph node metastasis, tumor diameter of 5 cm or more, 50% or higher Ki-67 are poor prognosis factor.

Conclusion

RMS in nasal cavity and sinus are mostly embryonal type in adults, and the 5-year overall survival rate is low, which is related to larger primary tumor volume, local lymph node metastasis, skull base infiltration and higher ki-67 ratio at the first diagnosis in adults.