胫骨软骨黏液样纤维瘤1例

患者 女,67岁。10年前开始出现左膝部疼痛,活动后加重,间断发作。实验室检查未见重要异常。查体：左膝关节压痛,胫骨上端叩击痛(+),未及骨擦感,未触及肿块,浅表静脉无怒张,左膝侧方应力试验(-),抽屉试验(-),麦氏试验(-)。     

Computed tomography of ossifying fibroma of the tibia

Two ossifying fibromas of the tibia were studied by computed tomography, which showed that the lesions were composed predominantly of high density tissue and that they were located in the cortex. The tissue density indicated that the tumors were diffusely ossified or calcified. The intracortical site is typical of ossifying fibroma, but it is unusual in other lesions of similar appearance.     

胫骨促结缔组织增生性纤维瘤1例

患者女,25岁。右膝疼痛1年余,加重1月,活动时右小腿上部酸胀痛伴刺痛,上下楼梯时加重。查体：右大腿股四头肌明显萎缩,右小腿上端近膝关节处肿胀,局部皮温高,压痛明显,屈曲伸直活动时疼痛明显。影像学检查：     

Intra-articular fibroma of tendon sheath of the shoulder joint: synovial fibroma

The case of a 30-year-old woman with multiple loose bodies in the shoulder joint is presented. The patient complained of discomfort of her right shoulder. Conventional radiographs failed to reveal any abnormality of the shoulder. On MRI numerous loose bodies were detected that resembled synovial chondromatosis. Histologically, the loose bodies were composed of a benign fibroblastic lesion with diagnostic features of fibroma of tendon sheath, each surfaced by synoviocytes. The clinicopathologic features of intra-articular fibroma of tendon sheath are reviewed. We propose using the term “synovial fibroma” for tumors with histopathologic features of fibroma of tendon sheath arising in the synovium of joints.     

卵巢纤维瘤的CT表现

目的 探讨卵巢纤维瘤的CT平扫及增强扫描的特征性表现.方法 回顾性分析经手术病理证实的20例卵巢纤维瘤患者临床及CT影像资料.所有病例均行盆腔CT平扫,其中13例行CT增强扫描,12例同时行上腹CT扫描.结果 本组20例卵巢纤维瘤中单侧发病19例,双侧发病1例.肿块呈类圆形或分叶状,边界清楚.最大径4.0～20.2 cm,平均9.5 cm.肿块密度不均匀16例,5例密度均匀.5例肿块伴钙化.1例伴蒂扭转.2例伴梅格氏综合征.增强CT扫描肿块呈轻度延迟强化,动脉晚期CT增强值为0.8～8.5 HU,平衡期CT增强值为3.9～27.6 HU.结论卵巢纤维瘤的CT表现具有一定特征性,CT增强扫描有助于提高诊断准确率.     

Desmoplastic fibroma of the mandible

Desmoplastic fibroma (DF) of the bone, also know as desmoid tumour, is a rare non-metastasizing but locally aggressive tumour. In this case report, we present imaging findings of a histopathologically proven desmoplastic fibroma involving the left mandibular region in a 15-year-old Chinese patient. We have also discussed the usefulness of different imaging modalities (plain film radiography, CT and MRI) in DF diagnosis and treatment.     

Intracortical chondromyxoid fibroma of humerus

The clinicoradiologic and pathologic aspects of an intracortical, diaphyseal chondromyxoid fibroma of the humerus are reported. Because of the location of the lesion, the possibility of chondromyxoid fibroma was not considered radiologically. The diagnosis was made only after histologic examination of tissue obtained via an open biopsy, which led to the appropriate treatment, surgical curettage.     

Chondromyxoid fibroma of the sacrum

A 30-year-old man with a 7-month history of mild sacral pain and intermittant left sciatica was found to have an expansile lesion in the sacrum on a plain radiograph. Biopsy confirmed a chondromyxoid fibroma which was removed surgically. A 1-year follow-up showed no recurrence. The case is the fifth to be reported. Plain film and MRI appearances, histology and treatment are described. The previously reported cases are reviewed and the current literature is discussed. Received: 14 September 1998; Revision received: 17 December 1998; Accepted: 18 December 1998     

非骨化性纤维瘤的影像学评价

本文回顾性分析手术病理证实的16例非骨化性纤维瘤（non-ossifying fibmma,NOF）的影像学表现,重点讨论其x线平片、CT及MRI表现及客观评价。     

Chondromyxoid fibroma of the foot

 Chondromyxoid fibroma is a rare benign cartilaginous tumour seen most frequently around the knee in children and young adults. Up to 17% occur in the foot, where more aggressive appearances have been reported. Four cases of chondromyxoid fibroma in the forefoot are presented, demonstrating the wide range of radiological appearances of this primary tumour. Three of the four tumours recurred, one at 19 years after surgery. These cases illustrate the need for thorough preoperative assessment to ensure complete surgical resection in an attempt to reduce the incidence of local recurrence.