[A case of infant with giant parapharyngeal space rhabdomyosarcoma].

Rhabdomyosarcoma is a kind of skeletal muscle ifferentiation tendency of primitive mesenchymal malignant tumor. It is common in pediatric malignant pleomorphic rhabdomyosarcoma, and its prognosis is poor. It is easy to relapse, and its predilection sites in head and face were around the eyes, the external auditory meatus, nasal cavity and paranasal sinuses. We should take comprehensive treatment including surgical operation, radiotherapy and chemotherapy drug combination for embryonal rhabdomyosarcoma.