Case Report

Primary Intraosseous Synovial Sarcoma with Molecular Confirmation: Expanding and Clarifying the Spectrum of This Rare Neoplasm

Table 2

Reported cases of primary intraosseous synovial sarcoma without molecular and/or cytogenetic confirmation of the diagnosis.

AuthorYearNo. casesAgeSexAnatomic siteExtraosseous componentMorphologyClinical managementClinical follow-up

Rose et al.1982116FDistal femurNoBiphasicSubtrochanteric amputationNA
Nakajo et al.2005186MSternumYesMonophasicNANA
Tilakaratne et al.2006129FMandible ramusNoMonophasicAdjuvant XRTNED 2 years
Tao et al.2011120FPosterior mandibleNoMonophasicExtensive mandibulectomy; adjuvant XRTNED 6 months
Khalili et al.2012176MPosterior mandibleNoMonophasicLymph node metastases at the time of diagnosisDOD at 2 mo. postdiagnosis
Zulkarnaen et al.2012157MProximal femurYesBiphasicNeoadjuvant chemotherapy; wide excision; adjuvant chemotherapyPulmonary metastasis; DOD
Kim et al.2013117MC3 vertebraNoMonophasicNANA
Bansal et al.2015116FMandibleYesMonophasicNANA
Liu et al.20151514-62y5M, 10FMaxilla (7)
Mandible (8)
NA6 biphasic, 9 monophasicLymph node metastases in 1 patient; adjuvant XRT in 9 patients; adjuvant chemotherapy in 6 patients6 patients with local recurrence (LR); 1 patient with pulmonary metastasis; 4 patients with LR DOD
Cardosa et al.2016156FScapulaYesMonophasicNeoadjuvant chemotherapy; en bloc resectionSubsequent lymph node metastases; excision and adjuvant XRT
Deyong et al.20162NANANANANANANA

Total cases: 26. FISH molecular testing was performed and was negative for an SYT gene rearrangement. Abbreviations: F: female; M: male; NA: not applicable (not reported); XRT: radiation therapy; NED: no evidence of disease; DOD: dead of disease.