Retrospective Evaluation of Whole Body Computed Tomography for Tumor Staging in Dogs with Primary Appendicular Osteosarcoma

Abstract

Bone metastases were not identified in any dog with whole body CT. Thoracic and abdominal CT detected lung lesions and concurrent neoplasia in dogs with primary appendicular osteosarcoma. Whole body CT may be a useful adjunct to other screening tests for disseminated malignancy.

Subcutaneous extraskeletal osteosarcoma in a metatarsal footpad in a cat

“…Previous reports of feline ESOSA have described the use of routine imaging solely for diagnostic and staging purposes . Nuclear medicine techniques are more sensitive for dismissing primary or metastatic bone tumours but may not be readily available . Furthermore, advanced imaging techniques such as CT or magnetic resonance imaging (MRI) have been shown to be more accurate than radiography to discriminate bone tumours .…”

“…11 Furthermore, advanced imaging techniques such as CT or magnetic resonance imaging (MRI) have been shown to be more accurate than radiography to discriminate bone tumours. 7,11 Of these, CT provides excellent resolution of cortical and trabecular bone, and has higher sensitivity compared to plain radiography in detecting both osteolytic and osteosclerotic changes. In contrast to previous reports, advance diagnostic imaging was used in the present case to exclude a skeletal origin for the tumour.…”

Osteosarcoma in Dogs: Diagnosis and Treatment - A Literature Review

“…These are: Chen at. Al [2][3][4][5][7][8][9][10][11][12][13][14]. The animals described in this review, the animals were middle aged to elderly and medium to large size, except for one case of a Maltese dog reported by Teixeira et al [18].…”

“…Radiographic examinations, bone scans and tomography improve the diagnosis, especially to investigate metastases and other diseases, as presented in the studies of Garzotto et al [21] Sottnick et al [23] and Talbott et al [13]. The study by Ferrigno et al [8] still includes abdominal ultrasound.…”

“…The study by Ferrigno et al [8] still includes abdominal ultrasound. The dentification of metastases and other diseases is fundamental to planning the treatment and, consequently, obtaining better prognosis [13,14,21,23] Regarding the treatment, Ferrigno et al [8] and Gôuvea et al [2], reported that limb preservation surgery, considered to be the best choice of treatment, as well as emphasized by Ziliotto et al [7], when combined with adjuvant chemotherapy provided a longer survival. In addition, the study by Ziliotto et al [7] has improved the surgical technique focused on the preservation of the bone implant in glycerin, which proved to be efficient for this purpose.…”