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J Korean Radiol Soc. 2008 Dec;59(6):417-427. Korean. Original Article. https://doi.org/10.3348/jkrs.2008.59.6.417
Moon TY , Lee IS , Lee G , Kim JI , Choi KU , Kim WT .
Department of Radiology, Pusan National University Hospital, Korea.
Department of Orthopedics, Pusan National University Hospital, Korea.
Department of Pathology, Pusan National University Hospital, Korea.
Department of Radiation Oncology, Pusan National University Hospital, Korea.
Abstract

PURPOSE: This study was designed too identify the MR histoanatomical distribution of soft-tissue tumors. MATERIALS AND METHODS: A total of 290 soft-tissue tumors of 281 patients were analyzed by the use of MR imaging and were pathologically confirmed after surgical resection or a biopsy. There were 120 malignant soft-tissue tumors including tumors of an intermediate malignancy and 170 benign tumors. The histoanatomical locations were divided into three types: 'Type I' with superficial layer tumors that involved the cutaneous and subcutaneous tissue, 'Type II' with deep layer tumors that involved the muscle or tendon and 'Type III' with soft-tissue tumors that involved both the superficial and deep layers. RESULTS: Soft-tissue tumors with more than three cases with a frequency of more than 75% included dermatofibrosarcoma protuberans, glomus tumor, angiolipoma, leiomyosarcoma and lymphoma as 'Type I' tumors. 'Type II' tumors with more than three cases with a frequency of more than 75% included liposarcoma, fibromatosis, papillary endothelial hyperplasia and rhabdomyosarcoma. 'Type III' tumors with more than three cases with a frequency of more than 50% included neurofibromatosis. CONCLUSION: The MR histoanatomical distributions of soft tissue tumors are useful in the differential pathological diagnosis when a soft-tissue tumor has a nonspecific MR appearance.

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