68Kerouanton A, Jimenez I, Cellier C, et al: Synovial sarcoma in children and adolescents. J Pediatr Hematol Oncol 2014;36:257–262.
69Fisher C: Soft tissue sarcomas with non-EWS translocations: molecular genetic features and pathologic and clinical correlations. Virchows Arch 2010;456:153–166.
70Thway K, Fisher C: Synovial sarcoma: defining features and diagnostic evolution. Ann Diagn Pathol 2014;18:369–380.
71Vlenterie M, Jones RL, van der Graaf WT: Synovial sarcoma diagnosis and management in the era of targeted therapies. Curr Opin Oncol 2015;27:316–322.
72Przybyl J, Sciot R, Wozniak A, et al: Metastatic potential is determined early in synovial sarcoma development and reflected by tumor molecular features. Int J Biochem Cell Biol 2014;53:505–513.
73Nelson BL, Thompson LD: Sinonasal tract angiosarcoma: a clinicopathologic and immunophenotypic study of 10 cases with a review of the literature. Head Neck Pathol 2007;1:1–12.
74Maddox JC, Evans HL: Angiosarcoma of skin and soft tissue: a study of forty-four cases. Cancer 1981;48:1907–1921.
75Narula AA, Vallis MP, el-Silimy OE, Dowling F, Bradley PJ: Radiation induced angiosarcomas of the nasopharynx. Eur J Surg Oncol 1986;12:147–152.
76Wong KF, So CC, Wong N, Siu LL, Kwong YL, Chan JK: Sinonasal angiosarcoma with marrow involvement at presentation mimicking malignant lymphoma: cytogenetic analysis using multiple techniques. Cancer Genet Cytogenet 2001;129:64–68.
77Fu YS, Perzin KH: Non-epithelial tumors of the nasal cavity, paranasal sinuses, and nasopharynx: a clinicopathologic study. I. General features and vascular tumors. Cancer 1974;33:1275–1288.
78Sekhar LN, Pranatartiharan R, Chanda A, Wright DC: Chordomas and chondrosarcomas of the skull base: results and complications of surgical management. Neurosurg Focus 2001;10:E2.
79Korten AG, ter Berg HJ, Spincemaille GH, van der Laan RT, Van de Wel AM: Intracranial chondrosarcoma: review of the literature and report of 15 cases. J Neurol Neurosurg Psychiatry 1998;65:88–92.
80Rapidis AD, Archondakis G, Anteriotis D, Skouteris CA: Chondrosarcomas of the skull base: review of the literature and report of two cases. J Craniomaxillofac Surg 1997;25:322–327.
81Panda NK, Jain A, Eshwara Reddy CE: Osteosarcoma and chondrosarcoma of the maxilla. Br J Oral Maxillofac Surg 2003;41:329–333.
82Whitehead RE, Melhem ER, Kasznica J, Eustace S: Telangiectatic osteosarcoma of the skull base. AJNR Am J Neuroradiol 1998;19:754–757.
83Huang SC, Ghossein RA, Bishop JA, et al: Novel PAX3-NCOA1 fusions in biphenotypic sinonasal sarcoma with focal rhabdomyoblastic differentiation. Am J Surg Pathol 2016;40:51–59.
84Lewis JT, Oliveira AM, Nascimento AG, et al: Low-grade sinonasal sarcoma with neural and myogenic features: a clinicopathologic analysis of 28 cases. Am J Surg Pathol 2012;36:517–525.
85Powers KA, Han LM, Chiu AG, Aly FZ: Low-grade sinonasal sarcoma with neural and myogenic features – diagnostic challenge and pathogenic insight. Oral Surg Oral Med Oral Pathol Oral Radiol 2015;119:e265–e269.
86Wang X, Bledsoe KL, Graham RP, et al: Recurrent PAX3-MAML3 fusion in biphenotypic sinonasal sarcoma. Nat Genet 2014;46:666–668.
87Wong WJ, Lauria A, Hornick JL, Xiao S, Fletcher JA, Marino-Enriquez A: Alternate PAX3-FOXO1 oncogenic fusion in biphenotypic sinonasal sarcoma. Genes Chromosomes Cancer 2016;55:25–29.
88Sumegi J, Streblow R, Frayer RW, et al: Recurrent t(2;2) and t(2;8) translocations in rhabdomyosarcoma without the canonical PAX-FOXO1 fuse PAX3 to members of the nuclear receptor transcriptional coactivator family. Genes Chromosomes Cancer 2010;49:224–236.
89Hoch BL, Nielsen GP, Liebsch NJ, Rosenberg AE: Base of skull chordomas in children and adolescents: a clinicopathologic study of 73 cases. Am J Surg Pathol 2006;30:811–818.
90St Martin M, Levine SC: Chordomas of the skull base: manifestations and management. Curr Opin Otolaryngol Head Neck Surg 2003;11:324–327.
91Hug EB: Review of skull base chordomas: prognostic factors and long-term results of proton-beam radiotherapy. Neurosurg Focus 2001;10:E11.
92DeMonte F, Diaz E Jr, Callender D, Suk I: Transmandibular, circumglossal, retropharyngeal approach for chordomas of the clivus and upper cervical spine. Technical note. Neurosurg Focus 2001;10:E10.
93Colli BO, Al-Mefty O: Chordomas of the skull base: follow-up review and prognostic factors. Neurosurg Focus 2001;10:E1.
94Dehner LP, Askin FB: Tumors of fibrous tissue origin in childhood. A clinicopathologic study of cutaneous and soft tissue neoplasms in 66 children. Cancer 1976;38:888–900.
95Pena S, Brickman T, StHilaire H, Jeyakumar A: Aggressive fibromatosis of the head and neck in the pediatric population. Int J Pediatr Otorhinolaryngol 2014;78:1–4.
96Colombo C, Miceli R, Lazar AJ, et al: CTNNB1 45F mutation is a molecular prognosticator of increased postoperative primary desmoid tumor recurrence: an independent, multicenter validation study. Cancer 2013;119:3696–3702.
97van Broekhoven DL, Verhoef C, Grunhagen DJ, et al: Prognostic value of CTNNB1 gene mutation in primary sporadic aggressive fibromatosis. Ann Surg Oncol 2015;22:1464–1470.
98Mentzel T, Beham A, Calonje E, Katenkamp D, Fletcher CD: Epithelioid hemangioendothelioma of skin and soft tissues: clinicopathologic and immunohistochemical study of 30 cases. Am J Surg Pathol 1997;21:363–374.
99Weiss SW, Enzinger FM: Epithelioid hemangioendothelioma: a vascular tumor often mistaken for a carcinoma. Cancer 1982;50:970–981.
100Flucke U, Vogels RJ, de Saint Aubain Somerhausen N, et al: Epithelioid Hemangioendothelioma: clinicopathologic, immunhistochemical, and molecular genetic analysis of 39 cases. Diagn Pathol 2014;9:131.
101Tanas MR, Sboner A, Oliveira AM, et al: Identification of a disease-defining gene fusion in epithelioid hemangioendothelioma. Sci Transl Med 2011;3:98ra82.
102Deyrup AT, Tighiouart M, Montag AG, Weiss SW: Epithelioid hemangioendothelioma of soft tissue: a proposal for risk stratification based on 49 cases. Am J Surg Pathol 2008;32:924–927.
103Friedman