The aim of the present study was to characterize the clinicopathological features of @entity8790 ( @entity8790 ), and to report the experience of the @entity7681 Hua Hospital Affiliated to Shanghai Jiaotong University School of Medicine (Shanghai, China) with this entity. The clinicopathological findings of four cases that had recently been encountered and 142 previously reported cases in the English literature were evaluated. The current @entity5 were found in two male and two female @entity1 , aged 49-76 years old, who exhibited a mean @entity5 size of 8.7 cm. Three of the four cases were misdiagnosed during the initial diagnosis and one experienced intra-abdominal recurrence six months after the first diagnosis. Assessment of all 142 cases in the literature revealed a mild female predominance. The @entity5 exhibited a mean @entity5 size of ~7.0 cm. Histologically, the @entity5 were composed of plump spindle- or oval-shaped cells that exhibited eosinophilic cytoplasm and were arranged in sheets, storiform patterns or whorls. Immunohistochemically, the neoplastic cells expressed at least one of the FDC markers. Among the 130 cases with follow-up data, the overall recurrence, @entity3 and mortality rates were 49.2% (64 cases), 21.5% (28 cases), and 13.8% (18 cases), respectively. @entity8790 can appear deceptively similar to other soft-tissue @entity5 , even poorly-differentiated @entity189 . A correct diagnosis requires a high degree of suspicion and immunohistochemical evaluation.

XXXX : A clinicopathological report of four cases and a literature review.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'tumors'] @entity8790 :: ('MESH:D054740', 'Disease') :: ['FDCS', 'follicular dendritic cell sarcoma'] @entity189 :: ('MESH:D002277', 'Disease') :: ['carcinomas'] @entity7681 :: ('165904', 'Gene') :: ['Xin'] @entity3 :: ('MESH:D009362', 'Disease') :: ['metastasis']
@entity8790 :: (MESH:D054740,Disease) :: ['Extranodal follicular dendritic cell sarcoma']
