muzzle: 24 cases (1990–2001). J Vet Intern Med 17(5):687–692.128 Gill, V., N.F. Leibman, S. Monette, et al. 2007. Histologic grade, proliferation indices and clinical outcome in canine subcutaneous mast cell tumors. In Proceedings of the 27th Veterinary Cancer Society Annual conference. Fort Lauderdale, FL, November 1–4, 2007.
129 Gill, V., N. Leibman, S. Monette, et al. 2020. Prognostic indicators and clinical outcome in dogs with subcutaneous mast cell tumors treated with surgery alone: 43 cases. J Am Anim Hosp Assoc 56(4):215–225.
130 Gilson, S.D. and E.A. Stone. 1990. Surgically induced tumor seeding in eight dogs and two cats. J Am Vet Med Assoc 196(11):1811–1815.
131 Gobar, G.M. and P.H. Kass. 2002. World Wide Web‐based survey of vaccination practices, postvaccinal reactions, and vaccine site‐associated sarcomas in cats. J Am Vet Med Assoc 220:1477–1482.
132 Goldschmidt, M.H. and M.J. Hendrick. 2002. Tumors of the skin and soft tissues. In Tumors in Domestic Animals. 4th edition, p. 45. D.J. Meuten, editor. Iowa City: Iowa State Press.
133 Goldschmidt, M.H. and F.S. Shofer. 1992. Skin Tumors of the Dog and Cat, 1st edition. M.H. Goldschmidt and F.S. Shofer, editors. Oxford: Pergamon Press.
134 Goldschmidt, M.H. and F.S. Shofer. 1998. Uncommon skin tumors. In Skin Tumors of the Dog and Cat, pp. 291–295. M.H. Goldschmidt and F.S. Shofer, editors. New York: Butterworth Heinemann.
135 Graf, R., A. Pospischil, F. Guscetti, et al. 2018. Cutaneous tumors in Swiss dogs: Retrospective data from the Swiss Canine Cancer Registry, 2008–2013. Vet Pathol 55(6):809–820.
136 Graves, G.M., D.E. Bjorling, and E. Mahaffey. 1988. Canine hemangiopericytoma: 23 cases (1967–1984). J Am Vet Med Assoc 192(1):99–102.
137 Greene, F.L. 2002. AJCC Cancer Staging Manual. American Joint Committee on Cancer, Report No.: 0387952713. New York: American Cancer Society.
138 Grier, R.L., G. Di Guardo, R. Myers, et al. 1995. Mast cell tumor destruction in dogs by hypotonic solution. J Small Anim Pract 36(9):385–388.
139 Grimes, J.A., S.A. Secrest, N.C. Northrup, et al. 2017. Indirect computed tomography lymphangiography with aqueous contrast for evaluation of sentinel lymph nodes in dogs with tumors of the head. Vet Radiol Ultrasound 58(5):559–564.
140 Grimes, J.A., S.A. Secrest, M.L. Wallace, et al. 2020. Use of indirect computed tomography lymphangiography to determine metastatic status of sentinel lymph nodes in dogs with a pre‐operative diagnosis of melanoma or mast cell tumour. Vet Comp Oncol 18(4):818–824.
141 Gross, T.L., P.J. Ihrke, E.J. Walder, et al. 2005. Skin Diseases of the Dog and Cat: Clinical Histopathologic Diagnosis, 2nd edition. Oxford: Blackwell Science.
142 Gruntzig, K., R. Graf, M. Hassig, et al. 2015. The Swiss Canine Cancer Registry: A retrospective study on the occurrence of tumours in dogs in Switzerland from 1955 to 2008. J Comp Pathol 152(2–3):161–171.
143 Grüntzig, K., R. Graf, G. Boo, et al. 2016. Occurrence of the most common tumour diagnoses and influence of age, breed, body size, sex and neutering status on tumour development. Swiss Canine Cancer Registry 1955–2008. J Comp Pathol 155(2–3):156–170.
144 Haagsman, A.N., A.C. Witkamp, B.E. Sjollema, et al. 2013. The effect of interleukin‐2 on canine peripheral nerve sheath tumors after marginal surgical excision: A double‐blind randomized study. BMC Vet Res 9:155.
145 Hahn, K.A., G.K. King, and J.K. Carreras. 2004. Efficacy of radiation therapy for incompletely resected grade‐III mast cell tumors in dogs: 31 cases (1987–1998). J Am Vet Med Assoc 224(1):79–82.
146 Hahn, K.A., M.M. Endicott, G.K. King, et al. 2007. Evaluation of radiotherapy alone or in combination with doxorubicin chemotherapy for the treatment of cats with incompletely excised soft tissue sarcomas: 71 cases (1989–1999). J Am Vet Med Assoc 231(5):742–745.
147 Hahn, K.A., G. Ogilvie, T. Rusk, et al. 2008. Masitinib is safe and effective for the treatment of canine mast cell tumors. J Vet Intern Med 22(6):1301–1309.
148 Hammer, A.S., C.G. Couto, J. Filppi, et al. 1991. Efficacy and toxicity of VAC chemotherapy (vincristine, doxorubicin, and cyclophosphamide) in dogs with hemangiosarcoma. J Vet Intern Med 5(3):160–166.
149 Hanna, S.L. and B.D. Fletcher. 1995. MR imaging of malignant soft tissue tumors. Magn Reson Imaging Clin N Am 3(4):629–650.
150 Hansen, K.S., A.L. Zwingenberger, A.P. Théon, et al. 2016. Treatment of MRI‐diagnosed trigeminal peripheral nerve sheath tumors by stereotactic radiotherapy in dogs. J Vet Intern Med 30(4):1112–1120.
151 Harcourt‐Brown, T.R., N. Granger, P.M. Smith, et al. 2009. Use of a lateral surgical approach to the femoral nerve in the management of two primary femoral nerve sheath tumors. Vet Comp Orthop Traumatol 22(3):229–232.
152 Halsey, C.H., D.R. Worley, K. Curran, et al. 2016. The use of novel lymphatic endothelial cell‐specific immunohistochemical markers to differentiate cutaneous angiosarcomas in dogs. Vet Comp Oncol 14(3):236–244.
153 Hargis, A.M., P.J. Ihrke, W.L. Spangler, et al. 1992. A retrospective clinicopathologic study of 212 dogs with cutaneous hemangiomas and hemangiosarcomas. Vet Pathol 29(4):316–328.
154 Harris, K.P., J.M. Dobson, F. Constantino‐Casas, et al. 2014. Evaluation of the tumor bed biopsy technique in canine and feline oncologic surgery. In 23rd Annual ECVS Scientific Meeting Copenhagen, Denmark, July 3–5, 2014, Published in: Vet Surg 43(5):E125.
155 Hartmann, K., M.J. Day, E. Thiry, et al. 2015. Feline injection‐site sarcoma: ABCD guidelines on prevention and management. J Feline Med Surg 17(7):606–613.
156 Headley, S.A., A.C. Faria Dos Reis, and A.P. Frederico. 2011. Cutaneous myxosarcoma with pulmonary metastases in a dog. J Comp Pathol 145(1):31–34.
157 Heller, D., M.E. Stebbins, T. Reynolds, et al. 2005. A retrospective study of 87 cases of canine soft tissue sarcoma, 1986–2001. Int J Appl Res Vet Med 3:81–87.
158 Hendrick, M.J. and M.H. Goldschmidt. 1991. Do injection site reactions induce fibrosarcomas in cats? J Am Vet Med Assoc 199(8):968.
159 Henney, L.H. and M.M. Pavletic. 1988. Axial pattern flap based on the superficial brachial artery in the dog. Vet Surg 17(6):311–317.
160 Hergt, F., W. von Bomhard, M.S. Kent, et al. 2016. Use of a 2‐tier histologic grading system for canine cutaneous mast cell tumors on cytology specimens. Vet Clin Pathol 45(3):477–483.
161 Hershey, A.E., K.U. Sorenmo, M.J. Hendrick, et al. 2000. Prognosis for presumed feline vaccine‐associated sarcoma after excision: 61 cases (1986–1996). J Am Vet Med Assoc 216(1):58–61.
162 Hill, J., J. Lawrence, C. Saba, et al. 2014. In vitro efficacy of doxorubicin and etoposide against a feline injection site sarcoma cell line. Res Vet Sci 97(2):348–356.
163 Hobert, M.K., C. Brauer, P. Dziallas, et al. 2013 Infiltrative lipoma compressing the spinal cord in 2 large‐breed dogs. Can Vet J 54(1):74–78.
164 Horta, R.D.S., A. Giuliano, G.E. Lavalle, et al. 2018. Clinical, histological, immunohistochemical and genetic factors associated with measurable response of high‐risk canine mast cell tumours to tyrosine kinase inhibitors. Oncol Lett 15:129–136.
165 Hosoya, K., W.C. Kisseberth, F.J. Alvarez, et
