333 Schulman, F.Y., T.O. Johnson, P.R. Facemire, et al. 2009. Feline peripheral nerve sheath tumors: Histologic, immunohistochemical, and clinicopathologic correlation (59 tumors in 53 cats). Vet Pathol 46(6):1166–1180.
334 Schultheiss, P.C. 2004. A retrospective study of visceral and nonvisceral hemangiosarcoma and hemangiomas in domestic animals. J Vet Diagn Invest 16(6):522–526.
335 Schultheiss, P.C., D.W. Gardiner, S. Rao, et al. 2011. Association of histologic tumor characteristics and size of surgical margins with clinical outcome after surgical removal of cutaneous mast cell tumors in dogs. J Am Vet Med Assoc 238(11):1464–1469.
336 Schwab, T.M., C. Popovitch, J. DeBiasio, et al. 2014. Clinical outcome for MCTs of canine pinnae treated with surgical excision (2004–2008). J Am Anim Hosp Assoc 50(3):187–191.
337 Séguin, B., M.F. Besancon, J.L. McCallan, et al. 2006. Recurrence rate, clinical outcome, and cellular proliferation indices as prognostic indicators after incomplete surgical excision of cutaneous grade II mast cell tumors: 28 dogs (1994–2002). J Vet Intern Med 20(4):933–940.
338 Séguin, B., N.F. Leibman, V.S. Bregazzi, et al. 2001. Clinical outcome of dogs with grade‐II mast cell tumors treated with surgery alone: 55 cases (1996–1999). J Am Vet Med Assoc 218(7):1120–1123.
339 Séguin, B., D.E. McDonald, M.S. Kent, et al. 2005. Tolerance of cutaneous or mucosal flaps placed into a radiation therapy field in dogs. Vet Surg 34(3):214–222.
340 Selmic, L.E., J. Samuelson, J.K. Reagan, et al. 2019. Intra‐operative imaging of surgical margins of canine soft tissue sarcoma using optical coherence tomography. Vet Comp Oncol 17:80–88.
341 Selting, K.A., B.E. Powers, L.J. Thompson, et al. 2005. Outcome of dogs with high‐grade soft tissue sarcomas treated with and without adjuvant doxorubicin chemotherapy: 39 cases (1996–2004). J Am Vet Med Assoc 227(9):1442–1448.
342 Sfiligoi, G., K.M. Rassnick, J.M. Scarlett, et al. 2005. Outcome of dogs with mast cell tumors in the inguinal or perineal region versus other cutaneous locations: 124 cases (1990–2001). J Am Vet Med Assoc 226(8):1368–1374.
343 Shaw, S.C., M.S. Kent, I.K. Gordon, et al. 2009. Temporal changes in characteristics of injection‐site sarcomas in cats: 392 cases (1990–2006). J Am Vet Med Assoc 234(3):376–380.
344 Shaw, T., S.T. Kudnig, and S.M. Firestone. 2018. Diagnostic accuracy of pre‐treatment biopsy for grading cutaneous mast cell tumours in dogs. Vet Comp Oncol 16(2):214–219.
345 Shelly, S.M. 2003. Cutaneous lesions. Vet Clin North Am Small Anim Pract 33(1):1–46.
346 Shin, H., A. Nam, K.H. Song, et al. 2018. Anticancer effects of high‐dose ascorbate on canine melanoma cell lines. Vet Comp Oncol 16(4):616–621.
347 Shoop, S.J., S. Marlow, D.B. Church, et al. 2015. Prevalence and risk factors for mast cell tumours in dogs in England. Canine Genet Epidemiol 2:1.
348 Sicotte, V., J. Benamou, L.C. Fifle, et al. 2012. Use of surgery and mitoxantrone chemotherapy in a dog with disseminated lymphangiosarcoma. J Am Vet Med Assoc 241(12):1639–1644.
349 Silva, E.O., P.F.I. Goiozo, L.G. Pereira, et al. 2017. Concomitant malignant pulmonary peripheral nerve sheath tumour and benign cutaneous peripheral nerve sheath tumour in a dog. J Comp Pathol 157(1):46–50.
350 Simon, D., D.M. Ruslander, K.M. Rassnick, et al. 2007. Orthovoltage radiation and weekly low dose of doxorubicin for the treatment of incompletely excised soft‐tissue sarcomas in 39 dogs. Vet Rec 160(10):321–326.
351 Simpson, A.M., L.L. Ludwig, S.J. Newman, et al. 2004. Evaluation of surgical margins required for complete excision of cutaneous mast cell tumors in dogs. J Am Vet Med Assoc 224(2):236–240.
352 Smiech, A., B. Slaska, W. Lopuszynski, et al. 2018. Epidemiological assessment of the risk of canine mast cell tumours based on the Kiupel two‐grade malignancy classification. Acta Vet Scand 60(1):70.
353 Smith, J., M. Kiupel, J. Farrelly, et al. 2017. Recurrence rates and clinical outcome for dogs with grade II mast cell tumours with a low AgNOR count and Ki67 index treated with surgery alone. Vet Comp Oncol 15(1):36–45.
354 Sorenmo, K.U., K.A. Jeglum, and S.C. Helfand. 1993. Chemotherapy of canine hemangiosarcoma with doxorubicin and cyclophosphamide. J Vet Intern Med 7(6):370–376.
355 Spoldi, E., T. Schwarz, S. Sabattini, et al. 2017. Comparisons among computed tomographic features of adipose masses in dogs and cats. Vet Radiol Ultrasound 58(1):29–37.
356 Spugnini, E.P., B. Vincenzi, G. Citro, et al. 2007a. Adjuvant electrochemotherapy for the treatment of incompletely excised spontaneous canine sarcomas. InVivo 21(5):819–822.
357 Spugnini, E.P., A. Baldi, B. Vincenzi, et al. 2007b. Intraoperative versus postoperative electrochemotherapy in high grade soft tissue sarcomas: A preliminary study in a spontaneous feline model. Cancer Chemother Pharmacol 59(3):375–381.
358 Spugnini, E.P., S.M. Renaud, S. Buglioni, et al. 2011. Electrochemotherapy with cisplatin enhances local control after surgical ablation of fibrosarcoma in cats: An approach to improve the therapeutic index of highly toxic chemotherapy drugs. J Transl Med 14(9):152.
359 Spugnini, E.P., B. Vincenzi. B. Amadio, et al. 2019. Adjuvant electrochemotherapy with bleomycin and cisplatin combination for canine soft tissue sarcomas: A study of 30 cases. Open Vet J 9(1):88–93.
360 Spugnini, E.P., B. Vincenzi, F. F. Carocci, et al. 2020. Combination of bleomycin and cisplatin as adjuvant electrochemotherapy protocol for the treatment of incompletely excised feline injection‐site sarcomas: A retrospective study. Vet J 10(3):267–271.
361 Stanclift, R.M. and S.D. Gilson. 2008. Evaluation of neoadjuvant prednisone administration and surgical excision in treatment of cutaneous mast cell tumors in dogs. J Am Vet Med Assoc 232(1):53–62.
362 Stanley, B.J., K.A. Pitt, C.D. Weder, et al. 2013. Effects of negative pressure wound therapy on healing of free full‐thickness skin grafts in dogs. Vet Surg 42:511–522.
363 Stefanello, D., E. Morello, P. Roccabianca, et al. 2008. Marginal excision of low‐grade spindle cell sarcoma of canine extremities: 35 dogs (1996–2006). Vet Surg 37(5):461–465.
364 Stefanello D., G. Avallone, R. Ferrari, et al. 2011. Canine cutaneous perivascular wall tumors at first presentation: Clinical behavior and prognostic factors in 55 cases. J Vet Intern Med 25(6):1398–1405.
365 Stefanello, D., P. Valenti, S. Faverzani, et al. 2009. Ultrasound‐guided cytology of spleen and liver: A prognostic tool in canine cutaneous mast cell tumor. J Vet Intern Med 23(5):1051–1057.
366 Stefanello, D., P. Buracco, S. Sabattini, et al. 2015. Comparison of 2‐and 3‐category histologic grading systems for predicting the presence of metastasis at the time of initial evaluation in dogs with cutaneous mast cell tumors: 386 cases (2009–2014). J Am Vet Med Assoc 246(7):765–769.
367 Straw, R.C., S.J. Withrow, and B.E. Powers. 1992. Partial or total hemipelvectomy in the management of sarcomas in nine dogs and two cats. Vet Surg 21(3):183–188.
368 Sugiyama, A., T. Morita, A. Shimada, et al. 2008. Primary malignant peripheral nerve sheath tumor with eosinophilic cytoplasmic globules arising from the greater omentum in a dog. J Vet Med Sci 70(7):739–742.
369 Suzuki, S., K. Uchida, and H. Nakayama. 2014. The effects of tumor location on diagnostic criteria for canine malignant peripheral nerve sheath tumors (MPNSTs) and the markers for distinction between canine MPNSTs and canine perivascular wall tumors. Vet Pathol 51(4):722–736.
370 Swaim, S.F. 2003. Chapter 24—Skin grafts. In Textbook of Small Animal Surgery, 3rd edition. D.H. Slatter, editor. Philadelphia: Saunders.
371 Szivek, A., R.E. Burns, B. Gericota, et al. 2012. Clinical outcome in 94 cases of dermal haemangiosarcoma in dogs treated with surgical excision: 1993–2007. Vet Comp Oncol 10(1):65–73.
372 Teixeira, S., I. Amorim, A. Rêma,