Both interdigitating cell sarcoma (IDCS) and follicular dendritic cell sarcoma (FDCS) are rare neoplasms derived from dendritic cells in lymphoid organs. IDCS is defined as a neoplastic proliferation of spindle-shaped to ovoid cells with phenotypic features similar to those of IDCs. FDCS is a malignant neoplasm derived from FDCs that possess and present antigens to B cells in the follicular (ge...

We report computed tomography (CT) findings for a rare case of follicular dendritic cell sarcoma of the greater omentum from a 47-year-old female patient. The tumor presented ash a palpable mass lesion in the umbilical region for the last two months. Multidetector CT scan of the abdomen showed a 14-cm soft-tissue mass with calcification and necrosis within the greater omentum. As a result, a fo...

Follicular dendritic cell sarcoma is an extremely rare malignant neoplasm arising from follicular dendritic cells, and this was fi rst described in 1986 by Monda et al. (1). About 60% of the cases occur in lymph nodes such as the cervical, axillary and mediastinal lymph nodes, while a wide variety of extranodal sites may also be affected, including the tonsil, spleen, liver, gastrointestinal tr...