title: Fibrous histiocytoma metastatic to the orbit.
abstract: The term fibrous histiocytoma encompasses a heterogenous group of tumors believed to have a common origin in the histiocyte. These tumors demonstrate a wide histopathologic spectrum ranging from a predominantly cellular to a predominantly fibrous pattern. No clinical or histological criteria have been identified that can predict malignant behavior. Although generally characterized by local recurrence, a metastatic potential does exist. Fibrous histiocytoma of the thigh metastasized to the orbit.
mesh_terms: D003937:Diagnosis, Differential; D005354:Fibrosarcoma / Q000473:pathology; D018219:Histiocytoma, Benign Fibrous / Q000473:pathology*; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D009915:Orbit / Q000473:pathology; D009918:Orbital Neoplasms / Q000209:etiology / Q000473:pathology*; D012983:Soft Tissue Neoplasms / Q000473:pathology*; D013848:Thigh / Q000473:pathology