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1.
J Vet Intern Med ; 32(1): 107-110, 2018 Jan.
Article in English | MEDLINE | ID: mdl-29131404

ABSTRACT

BACKGROUND: Sialocele is a collection of saliva that has leaked from a damaged salivary gland or duct and is surrounded by granulation tissue. Surgery is the recognized first-line treatment. Recurrence rate after surgery is 5-14%. Salivary gland tissue is very sensitive to radiation therapy (RT). HYPOTHESIS/OBJECTIVES: Radiation therapy will be useful for the treatment of sialocele. The aims were to characterize response rate and clinical course of dogs with sialocele treated with RT and to determine a starting dose for clinical use. ANIMALS: Eleven dogs with sialocele. METHODS: Retrospective study of response and outcome after RT. RESULTS: All dogs had cervical sialocele. Seven dogs (63.6%) were treated with 3 weekly fractions of 4 Gray (Gy); (total dose, 12 Gy). Three dogs (27.3%) received 4 fractions of 4 Gy (16 Gy) and 1 dog received 5 fractions of 4 Gy (20 Gy) on a Monday-Wednesday-Friday schedule. Six dogs (54%) achieved a complete response (CR), and 5 dogs (45%) achieved a partial response (PR). Three dogs had progression of their sialocele 2, 3, and 9 months after RT; all three had received 12 Gy initially and 2 received 2 additional fractions of 4 Gy (cumulative total dose, 20 Gy) and subsequently achieved remission for >2 years. CONCLUSIONS AND CLINICAL IMPORTANCE: Radiation therapy is useful for the treatment of recurrent sialocele refractory to surgical management and a minimum total dose of 16 or 20 Gy in 4 Gy fractions appears effective.


Subject(s)
Dog Diseases/radiotherapy , Salivary Gland Diseases/veterinary , Animals , Cohort Studies , Dog Diseases/surgery , Dogs , Electrons/adverse effects , Electrons/therapeutic use , Female , Male , Remission Induction/methods , Retrospective Studies , Salivary Gland Diseases/radiotherapy , Salivary Gland Diseases/surgery , Treatment Outcome
2.
Schweiz Arch Tierheilkd ; 145(2): 89-94, 2003 Feb.
Article in German | MEDLINE | ID: mdl-12649955

ABSTRACT

Palliative radiation therapy may provide significant relief in symptoms in pets with incurable cancer. Therapy is applied over a short period of time, using larger than normal fractional doses. Palliative radiation leads to minimal or no side effects. This case report describes the situation of a miniature poodle that was presented with severe dyschezia as well as fresh blood in the feces. The dog had a large abdominal mass which was diagnosed as lymph-node metastasis of a perianal gland carcinoma. Therapy included palliative radiation as well as chemotherapy. Six months after initial presentation the dog is free of clinical symptoms.


Subject(s)
Anal Gland Neoplasms/radiotherapy , Carcinoma/veterinary , Dog Diseases/radiotherapy , Palliative Care , Anal Gland Neoplasms/drug therapy , Anal Gland Neoplasms/pathology , Animals , Antineoplastic Agents/therapeutic use , Carcinoma/drug therapy , Carcinoma/radiotherapy , Carcinoma/secondary , Dog Diseases/drug therapy , Dog Diseases/pathology , Dogs , Lymphatic Metastasis , Male , Treatment Outcome
3.
J Small Anim Pract ; 43(7): 303-7, 2002 Jul.
Article in English | MEDLINE | ID: mdl-12137151

ABSTRACT

Five cats tentatively diagnosed with pituitary adenoma (four cases) or pituitary carcinoma (one case), based on computed tomography (CT) or magnetic resonance imaging, were treated with radiotherapy. Electrons were applied in four cats and electrons and photons in the fifth. Ten to 12 fractions of 3.5 to 4.0 Gy each were delivered on a Monday/Wednesday/Friday schedule. The mean total dose applied was 39 Gy. No severe acute side effects to treatment were seen. Follow-up CT examination was performed in four cats; the mass had disappeared in one cat and remained stable or slightly decreased in size in the other three. The survival times were 5.5, 8.0, 15.0, 18.0 and 20.5 months, with two cats dying of causes unrelated to the tumour. Based on these cases, radiotherapy appears to be a valuable treatment option for feline pituitary tumours.


Subject(s)
Adenoma/veterinary , Carcinoma/veterinary , Pituitary Neoplasms/veterinary , Adenoma/radiotherapy , Animals , Carcinoma/radiotherapy , Cats , Fatal Outcome , Female , Male , Pituitary Neoplasms/radiotherapy , Survival , Tomography, X-Ray Computed , Treatment Outcome
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