Signs of metastatic disease on thoracic radiographs of dogs suffering from mammary gland tumours: a retrospective study (1990-1998).
A mammary gland tumour (MGT) was clinically diagnosed in 136 dogs. Histologically 71% were malignant and 29% benign. Intrathoracic metastatic disease was noted or suspected radiographically in 13.5% of the dogs with malignant and in 2.5% of the dogs with benign MGT. Six dogs with malignant MGT were necropsied, 5 had pulmonary metastases but only 1 had radiographic signs of intrathoracic metastatic disease. We conclude that radiographs are not very sensitive for detection of early intrathoracic metastatic disease of MGT.
Section of Diagnostic Imaging and Radio-Oncology, University of Zürich, Switzerland.
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D
Baumann
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B
Hauser
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M
Hubler
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Flückiger
D000818:Animals; D003937:Diagnosis, Differential; D004283:Dog Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000473:pathology; D004285:Dogs; D005260:Female; D008175:Lung Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000556:secondary / Q000662:veterinary; D008297:Male; D008321:Mammary Glands, Animal / Q000473:pathology*; D015674:Mammary Neoplasms, Animal / Q000000981:diagnostic imaging* / Q000473:pathology; D013902:Radiography, Thoracic / Q000379:methods / Q000662:veterinary*; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D013899:Thoracic Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary / Q000662:veterinary*