Equine sinonasal tumours: Does reporting of single cases and case series still advance the neglected field of equine clinical oncology?

Dixon, Padraic

doi:10.1111/eve.12473

Cited by 2 publications

(1 citation statement)

References 20 publications

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“…Certain tumor types may display a preference for specific anatomic locations. Squamous cell carcinoma and unspecified carcinomas often arise in the maxillary sinus, whereas adenocarcinoma tends to develop in the nasal cavity and in the area of the ethmoid bone ( 73 ). Additionally, involvement of multiple sinuses is possible and therefore determining the origin of primary paranasal sinus neoplasia is challenging even with CT ( 19 ).…”

Section: Imaging Specific Disorders Of the Equine Headmentioning

confidence: 99%

The Role of Computed Tomography in Imaging Non-neurologic Disorders of the Head in Equine Patients

Stieger‐Vanegas

Hanna

2022

Front. Vet. Sci.

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Computed tomography (CT) imaging of the head in equine patients is now commonly performed as CT scanners are more readily available. Head CT has proven valuable in evaluating spatially complex anatomic structures, where radiographic superimposition, or restricted access via endoscopy or ultrasound, limit complete evaluation of the disease process. Head CT has been demonstrated to be incredibly valuable in the evaluation of dental and paranasal sinus disease, disease of the hyoid apparatus and ear, and in evaluation of skull trauma. CT is an excellent modality for assessment of both osseous and soft tissue structures; however, evaluation of complex vascular anatomy and determination of tissue viability is limited without the use of contrast agents. Therefore, various contrast agent protocols including intravenous and intraarterial iodinated contrast administration techniques have been established. CT also has limitations in the evaluation of brain and spinal cord disease, for which magnetic resonance imaging (MRI) has major advantages. Head CT images are most commonly evaluated in transverse planes. However, standard multiplanar reconstructions of the head including dorsal and parasagittal planes improve the understanding of spatially complex disease processes. These reconstructions can be crucial for accurate identification of diseased teeth and determination of the extent and severity of osseous and paranasal sinus disease. Head CT examinations are becoming an increasingly important diagnostic tool in the evaluation of horses with head disorders, and CT imaging findings are an important aspect in the clinical decision-making process. The following review discusses the indications, benefits, and technical considerations for the use of computed tomography (CT) in evaluating non-neurologic head pathologies in equine patients.

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Section: Imaging Specific Disorders Of the Equine Headmentioning

confidence: 99%

The Role of Computed Tomography in Imaging Non-neurologic Disorders of the Head in Equine Patients

Stieger‐Vanegas

Hanna

2022

Front. Vet. Sci.

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Pleomorphic sarcoma with giant cells infiltrating the infraorbital canal in an aged Thoroughbred mare

Elane

Corbin²,

Reig

et al. 2019

Equine Veterinary Education

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Summary A 27‐year‐old Thoroughbred mare presented for computed tomography (CT) of the head following a 3‐month history of facial swelling at the infraorbital foramen, unilateral self‐mutilation and head‐shaking. Standing CT imaging showed soft tissue attenuation surrounding the infraorbital canal, with extensive bony lysis of the canal and maxillary bone at the infraorbital foramen. The mare was subjected to euthanasia, and post‐mortem examination revealed a proliferative tan soft tissue mass overlying the infraorbital nerve. A histopathological diagnosis of pleomorphic sarcoma with giant cells was made. Immunohistochemical analysis failed to fully elucidate the mesenchymal cell of origin of the sarcoma. Pleomorphic sarcoma with giant cells involving the infraorbital canal of the horse has not been previously described. This case highlights chronic subtle behavioural changes attributable to this neoplasm prior to the development of clinical signs and the utility of advanced imaging in the diagnosis.

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Equine sinonasal tumours: Does reporting of single cases and case series still advance the neglected field of equine clinical oncology?

Cited by 2 publications

References 20 publications

The Role of Computed Tomography in Imaging Non-neurologic Disorders of the Head in Equine Patients

The Role of Computed Tomography in Imaging Non-neurologic Disorders of the Head in Equine Patients

Pleomorphic sarcoma with giant cells infiltrating the infraorbital canal in an aged Thoroughbred mare

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