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KMID : 1148120170070020071
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Journal of Advanced Spine Surgery
2017 Volume.7 No. 2 p.71 ~ p.74
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Misdiagnosed Alveolar Soft-part Sarcoma in the Spine - A Case Report -
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Lee Gi-Soo
Kim Sang-Bum
Won You-Gun
Jeong Sang-Jin
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Abstract
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Study Design: A case report.
Purpose: To report a rare case of alveolar soft-part sarcoma in the spine. Alveolar soft-part sarcoma (ASPS) is a rare, distinctive sarcoma typically occurring in young adults. Although it shows a relatively indolent clinical course, the ultimate prognosis is poor and often characterized by late metastases. However, with radical resection, long-term survival is possible. ASPS usually arises in the skeletal muscle and occurs most frequently in the lower limbs.
Materials and Methods: A 17-year-old male patient presented with a palpable mass on the back that enlarged about 1 year before admission. The mass was approximately 4×3 cm, located on the right side of the thoracic midline, and was palpated to be relatively soft and fixed, with no pain. On preoperative magnetic resonance imaging (MRI), a 2.5 ×2.0×4.1-cm lobulating contoured intermuscular mass was located between the spinalis thoracis and logissimus thoracis muscles in the right lumbar area at the T5?6 level. In the T1- and T2-weighted images with enhanced view, the tumor was enhanced with homogeneous intensity.
Results: We considered the possibility of a benign tumor that is frequently found in back muscle, rather than the possibility of a malignant tumor. We performed mass excision and biopsy without prior fine-needle biopsy or incisional biopsy, with the patient under general anesthesia. The tumor was confirmed to be ASPS.
Conclusions: The possibility of malignancy should be considered in the treatment of all tumors, and accurate diagnosis is important before surgery.
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KEYWORD
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Alveolar soft-part sarcoma, Biopsy, Spin
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