Calcified synovial metastasis in the knee from renal cell carcinoma: a case report

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• 作者：Michael McConnell ; Rajendra Kumar ; Behrang Amini ; Patrick P Lin…
• 关键词：Synovial metastasis ; Calcified renal cell carcinoma ; Calcified synovial tumor ; Calcified intra ; articular metastasis
• 刊名：Skeletal Radiology
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：46
• 期：1
• 页码：123-127
• 全文大小：
• 刊物类别：Medicine
• 刊物主题：Imaging / Radiology; Orthopedics; Pathology; Nuclear Medicine;
• 出版者：Springer Berlin Heidelberg
• ISSN：1432-2161
• 卷排序：46

文摘

We present the case of an 83-year-old man who had painful swelling of right knee for 6 months. Radiographs showed a large intra-articular soft-tissue mass with small calcifications, whereas MRI detected a multilobulated intra-articular tumor with bone erosions at the distal femur. Histopathology of ultrasound-guided biopsy specimen of the synovial mass revealed it to be a poorly differentiated metastatic carcinoma. Abdominal computed tomography with intravenous contrast medium administration found a heterogeneously enhancing large right renal mass with calcifications, which was shown to be a renal cell carcinoma on histopathology. No metastases were found elsewhere. To our knowledge, this is the first reported case with MRI findings of a calcified intra-articular synovial metastasis from renal cell carcinoma.