Abstract
4 cases of reticulosarcoma were reported that they have had the clinical findings of intra-cranial metastasis under their treatment.
The treatment of case 1 (parapharyngeal space, stage 2) and 4 (ethmoid sinus, stage 1) were successful, but case 2 (nasal cavity, stage 2) and 3 (base of tonge, stage 2) were unsuccessful.
The accurate diagnosis and active treatment for those patients were emphasized.