SEER is an authoritative source of information on cancer incidence and survival in the United States. SEER currently collects and publishes cancer incidence and survival data from population-based cancer registries covering approximately 28 percent of the U.S. population.
FDC sarcoma is a neoplastic proliferation of spindled to ovoid cells showing morphologic and phenotypic features of follicular dendritic cells.
This is a rare sarcoma arising from the follicular reticulum cells in the B-cell area of the lymph node and forming a node-based tumor.
The inflammatory pseudo-tumor-like variant- originates as tumors in the liver or spleen, with the neoplastic spindled cells dispersed in a lymphoplasmacytic infiltrate.