Abstract
The collagen gel droplet embedded culture-drug sensitivity test (CD-DST) is an anticancer drug sensitivity test developed about 10 years ago. This study reports the application of this test in the choice of neoadjuvant chemotherapy for the treatment of one patient with a large synovial sarcoma in the right shank. A 28-year old man presented at our hospital with a large mass in his right shank which had a hard texture and an obscure boundary. The histopathological diagnosis of excisional biopsy specimens was synovial sarcoma with low differentiation. Theprubicin/Cisplatin (THP/CDDP) neoadjuvant chemotherapy was selected based on the results obtained from the CD-DST. After three courses, a computed tomography (CT) scan was performed which indicated that the volume of the tumor had decreased significantly. Additionally, tumor necrosis, as well as the clinical response, showed complete response. The histopathological diagnosis of wide excision specimens indicated a grade III chemotherapy response. The patient was alive and without recurrence after a follow-up of 16 months. Our results indicated that the CD-DST is a useful tool for selecting neoadjuvant chemotherapeutic drugs for patients with synovial sarcoma.
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