Abstract
Three cases of reticulum-cell sarcoma originating in the soft tissue of the face are reported.
These tumors are relatively rare but have some particular features:
1) The appearance of the tumor is a diffuse swelling with indistinct border and the tumor is firm and invasive with or without regional lymphnode swelling.
2) Tumor itself is more sensitive to radiotherapy than chemotherapy such as VCR, BLM and others.
3) Some of them develop to a generalized type in a short period or after repetition of recurrence, they become very resistant to treatment.
