骨盆原发性恶性肿瘤的影像学临床分析

目的:探讨骨盆原发性恶性肿瘤的病种分布及其影像学表现。方法:回顾本院11年间经活检和/或手术病理证实的骨盆原发性恶性肿瘤56例,分析其发病情况及影像学主要表现。结果:骨盆原发性恶性肿瘤共56例,按其发生比例依次为骨髓瘤(包括单发及多发性骨髓瘤)34例(占60.7%),软骨肉瘤、尤文氏肉瘤及原发性骨淋巴瘤各6例(分别占10.7%),骨肉瘤2例(占3.6%),恶性骨母细胞瘤及恶性纤维组织细胞瘤各1例(占1.8%)。主要影像表现为溶骨性骨质破坏(48例)或混合性骨质破坏(6例),软组织肿块或肿胀(22例),病灶边界清楚(35例),边界模糊(21例);出现瘤骨或钙、骨化(9例),少数可出现骨膜反应(4例)。结论:骨盆原发性恶性肿瘤种类较多,影像学表现缺乏特异性,综合影像检查可提高对各类病变的诊断及鉴别诊断准确率。

Clinic and imaging analysis of primary malignant tumors of the pelvis

Objective:To explore the incidence,pattern of distribution,and imaging features of primary malignant tumors of the pelvis.Methods:56 cases with primary malignant tumors of the pelvis cnfirmed by pathology during 11 years in our hospital were retrospectively studied.The incidence and imaging features were analyzed.Results:Among the 56 cases,there were several of primary malignant tumors of the pelvis.The type of these cases in order was myeloma(single or/and multiple) in 34 cases(60.7%),chondrosarcoma in 6 cases(10.7%),Ewing’s sarcoma in 6 cases(10.7%),primary lymphoma of bone in 6 cases(10.7%),primary osteosarcoma in 2 cases(3.6%),aggressive osteoblastoma in 1 case(1.8%),primary malignant fibrous histiocytoma of bone in 1 case(1.8%).The principal imaging features were osteolysis cortical destruction(48 cases),mixing cortical destruction(6 cases),soft-tissue masses or swelling(22 cases),sharpness of focus border(35 cases),obscure boundary of focus(21 cases),calcification(9 cases),and periosteal reaction(4 cases).Conclusion:The primary malignant tumors of the pelvis is multiversity.Although the imaging appearances are lack of not specificity,the principal imaging features of different imaging device are helpful in diagnosis and knowing more about primary malignant tumors of the pelvis.