Abstract
Histiocytic sarcoma is an extremely rare and aggressive malignancy of bone marrow origin that occurs in lymph nodes, skin, and the gastrointestinal tract. We report on the imaging features of two cases of primary histiocytic sarcoma, one in the retroperitoneum causing a tumor-bowel fistula and another with primary bone involvement.
MeSH terms
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Bone Neoplasms / diagnosis*
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Bone Neoplasms / pathology
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Bone Neoplasms / therapy
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Female
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Histiocytic Sarcoma / diagnosis*
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Histiocytic Sarcoma / pathology
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Histiocytic Sarcoma / therapy
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Humans
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Magnetic Resonance Imaging
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Male
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Middle Aged
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Multimodal Imaging
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Positron-Emission Tomography
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Retroperitoneal Neoplasms / diagnosis*
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Retroperitoneal Neoplasms / pathology
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Retroperitoneal Neoplasms / therapy
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Tomography, X-Ray Computed