Radiotherapy of a recurrent ossifying fibroma in the paranasal sinuses of a horse

Orsini, James A.; Baird, Debra K.; Ruggles, Alan J.

doi:10.2460/javma.2004.224.1483

Cited by 31 publications

(49 citation statements)

References 10 publications

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“…Thus, in our horse, treatment was based on hand calculations at nonstandard treatment distances. Also, more finely fractionated radiation prescriptions, though biologically superior to weekly fractionation, are difficult to implement in horses because of the requirement for anesthesia, though 3‐per‐week fractionation is feasible 13,14 …”

Section: Discussionmentioning

confidence: 99%

Radiation Therapy Communication: Nasal Passage and Paranasal Sinus Lymphoma in a Pony

Gerard¹,

Pruitt²,

Thrall³

2010

Vet Radiology Ultrasound

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An aged pony with extensive paranasal sinus and nasal passage B-cell lymphoma was treated with palliative radiation therapy. Sixteen gray were administered in two fractions, 7 days apart. A lateral field was used for the first fraction and a dorsal field for the second. Because of tumor being present in the left frontal sinus, gross tumor was knowingly excluded from the treated volume in the lateral field. The tumor regressed within 2 months and the pony remained free of clinical disease for 2.5 years. Acute, temporary blindness developed shortly after the second radiation fraction, but a direct causal relationship with the radiation therapy was not confirmed. The only radiation side effect was leukotrichia. Palliative treatment was successful in improving and prolonging the quality of life. These results suggest that localized equine B-cell lymphoma is radiosensitive, and that palliative radiation therapy is a reasonable consideration for large tumors, even when tumor volume prevents all gross tumor from being irradiated.

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Section: Discussionmentioning

confidence: 99%

Radiation Therapy Communication: Nasal Passage and Paranasal Sinus Lymphoma in a Pony

Gerard¹,

Pruitt²,

Thrall³

2010

Vet Radiology Ultrasound

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“…Ossifying fibromas and fibrosarcomas both present spicules of woven bone embedded in fibrous tissue (Orsini et al . ; Bush et al . ; Rai et al .…”

Section: Discussionmentioning

confidence: 99%

Resection of the incisive bone and rostral maxillae for removal of an ossifying fibroma in an 18‐year‐old Warmblood gelding

Lechartier

Steele

Vallefuoco

et al. 2014

Equine Veterinary Education

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Summary A 510 kg, 18‐year‐old Warmblood gelding used for high level dressage was presented with a 6 week history of a growing mass at the rostral aspect of the incisive bone. Radiographic examination of the maxillae showed an osteolytic lesion between the left maxillary central and intermediate teeth spreading caudally into the hard palate. Biopsy of the mass was consistent with an aggressive oral fibrosarcoma. Diagnostic work‐up ruled out metastatic lesions. An amputation of the incisive bone and part of the rostral maxillae was performed with the intent of removing the mass in healthy margins. However, the neoplastic tissue extended to the rostral aspect of the ventral nasal conchae and a resection in healthy margins was not performed to avoid surgical complications due to communication with the nasal conchae. After surgery, the horse's appetite and food uptake were not impaired and cosmetic appearance was excellent. Active drains were used in order to prevent any submucosal collection of fluids. Histopathological examination of the surgical margins of the removed maxillae confirmed the presence of tumoural tissue. Even though excision of the tumour was not complete, no macroscopic local recurrence was reported post operatively at 36 months' follow‐up. Based on histological re‐evaluation of the removed tissue and the absence of recurrence a definitive diagnosis of ossifying fibroma was made.

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“…Ossifying fibromas not amenable for complete resection have been surgically debulked as well as treated with radiotherapy (Robbins et al . 1996; Orsini et al . 2004).…”

Section: Discussionmentioning

confidence: 99%

Fibro‐osseous tumour of the second metacarpal bone in a Thoroughbred filly

Madron¹,

McClure²,

Yaeger

2012

Equine Veterinary Education

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SummaryA 7-month-old Thoroughbred filly was evaluated because of an enlarging mass present on the proximomedial aspect of the left metacarpus. The mass was first noticed at age 2 months and had continued to increase in size. The mass was firm, nonpainful to palpation, covered with normal haired skin and had never been associated with lameness. Radiographs obtained at ages 2 and 7 months revealed an enlarging and partially mineralised mass associated with the second metacarpal bone. Based on the clinical and radiographic progression, as well as the location of the mass, a poor prognosis for future athletic soundness was given and the filly was subjected to euthanasia. The mass had histological features of both an ossifying fibroma and osteoma.

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Radiotherapy of a recurrent ossifying fibroma in the paranasal sinuses of a horse

Cited by 31 publications

References 10 publications

Radiation Therapy Communication: Nasal Passage and Paranasal Sinus Lymphoma in a Pony

Radiation Therapy Communication: Nasal Passage and Paranasal Sinus Lymphoma in a Pony

Resection of the incisive bone and rostral maxillae for removal of an ossifying fibroma in an 18‐year‐old Warmblood gelding

Fibro‐osseous tumour of the second metacarpal bone in a Thoroughbred filly

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