MRI examination of resected malignant bone tumor can be an option for assessment of the osseous surgical margin

Confirming the surgical osseous margin of a resected malignant bone tumor macroscopically before reconstruction with a prosthesis is ideal. However, making the cut-surface of the femur specimen during surgery is difficult because of the hard bone tissue. In order to resolve this problem, the possibi...

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Bibliographic Details
Published in:British journal of radiology 2019-12, Vol.92 (1104), p.20190518-20190518
Main Authors: Sakamoto, Akio, Okamoto, Takeshi, Ikeguchi, Ryosuke, Matsuda, Shuichi
Format: Article
Language:English
Subjects:
Aged
Aged, 80 and over
Carcinoma, Renal Cell - secondary
Carcinoma, Renal Cell - surgery
Female
Femoral Neoplasms - diagnostic imaging
Femoral Neoplasms - secondary
Humans
Kidney Neoplasms - pathology
Magnetic Resonance Imaging - methods
Male
Margins of Excision
Middle Aged
Osteosarcoma - diagnostic imaging
Osteosarcoma - surgery
Prosthesis Implantation
Sarcoma - diagnostic imaging
Sarcoma - surgery
Short Communication
Urinary Bladder Neoplasms - pathology
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Summary:Confirming the surgical osseous margin of a resected malignant bone tumor macroscopically before reconstruction with a prosthesis is ideal. However, making the cut-surface of the femur specimen during surgery is difficult because of the hard bone tissue. In order to resolve this problem, the possibility of intraoperative MRI was considered. MRI was performed at the surgical unit for five malignant femoral bone tumors that included two osteosarcomas and one undifferentiated high-grade sarcoma, and two metastatic tumors immediately after the tumor resection. The specimens were prepared in plastic containers with saline. The osseous surgical margins were confirmed to be those planned pre-operatively in all cases without metal-induced artifacts. The weighted image (WI) was useful for evaluation of the osseous surgical margin, whereas the WI was useful for confirmation of extraosseous soft-tissue. The MRI was performed post-operatively as a preliminary evaluation of the technique. However, a limited sequence ( coronal WI) with short examination time could be performed during surgery for the sole purpose of assessing the osseous margin. MRI examination of a resected malignant bone tumor specimen has not been reported, and can be an option for assessment of the osseous surgical margin.
ISSN:0007-1285
1748-880X
DOI:10.1259/bjr.20190518