Non-Invasive Diagnosis and Retrospective Evaluation of Pulmonary Metastasis in Canines
DOI:
https://doi.org/10.48165/ijvsbt.2026.22.06.37Keywords:
Canine, Computed Tomography (CT), Pulmonary Metastasis, RadiographyAbstract
Pulmonary metastasis is a frequent complication of malignant tumours in dogs. Dogs (n=112) diagnosed with pulmonary metastasis in Radiography and Computed Tomography (CT) between August 2024 and July 2025 at MVC Teaching Hospital, Chennai were analysed, retrospectively. Insides of pulmonary metastasis were categorised with respect to sex, breed, age, and lesion with respect to radiographic patterns. Out of 112 cases, 43 were males (38.4%) and 69 were females (61.6%). The most affected breeds were non-descriptive (51), German Shepherd (9), Labrador (18), Spitz (8), Doberman (7), Golden Retriever (4), Shitzhu (4), Rottweiler (3), and others (9). Lesion patterns included diffuse miliary (61), local miliary (32), intra-thoracic mass (8), mediastinal mass (4), nodular lesions (5), and pulmonary osteomata (2). Age distribution showed 1-5 years (16 cases), 5-10 years (46 cases) and 10-15 years (45 cases) were the most affected, with only 5 dogs over 15 years. Fourteen canines were subjected to CT in addition to radiography to reveal the root cause of pulmonary metastasis and its sensitivity. Findings highlight a female predominance, a higher occurrence in middle-aged to geriatric dogs, and the diffuse miliary pattern as the most common radiographic manifestation.
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Able, H., Wolf-Ringwall, A., Rendahl, A., Ober, C. P., Seelig, D. M., Wilke, C. T., & Lawrence, J. (2021). Computed tomography radiomic features hold prognostic utility for canine lung tumors: An analytical study. PLoS One, 16(8), e0256139.
Armbrust, L. J., Biller, D. S., Bamford, A., Chun, R., Garrett, L. D., & Sanderson, M. W. (2012). Comparison of three-view thoracic radiography and computed tomography for detection of pulmonary nodules in dogs with neoplasia. Journal of the American Veterinary Medical Association, 240(9), 1088–1094.
Dennis, R., Kirberger, R. M., Barr, F., & Wrigley, R. H. (2010). Handbook of small animal radiology and ultrasound (2nd ed.). Elsevier.
Lamb, C. R., Whitlock, J., & Foster-Yeow, A. T. L. (2019). Prevalence of pulmonary nodules in dogs with malignant neoplasia as determined by CT. Veterinary Radiology & Ultrasound, 60(3), 300–305.
Lang, J., Wortman, J. A., Glickman, L. T., Biery, D. N., & Rhodes, W. H. (1986). Sensitivity of radiographic detection of lung metastases in the dog. Veterinary Radiology, 27(3), 74–78.
Marcinowska, A., Horta, R. D. S., Queiroga, F., & Giuliano, A. (2025). Canine lung carcinoma—A descriptive review. Frontiers in Veterinary Science, 11, 1464659.
Mehlhaff, C. J. L. C., & Patnaik, A. K. (1984). Surgical treatment of primary pulmonary neoplasia in 15 dogs. Journal of the American Animal Hospital Association, 20, 799–803.
Miles, K. G., Lattimer, J. C., Jergens, A. E., & Krause, G. F. (1990). A retrospective evaluation of the radiographic evidence of pulmonary metastatic disease on initial presentation in the dog. Veterinary Radiology, 31(2), 79–82.
Otoni, C. C., Rahal, S. C., Vulcano, L. C., Ribeiro, S. M., Hette, K., Giordano, T., Doiche, D. P., & Amorim, R. L. (2010). Survey radiography and computerized tomography imaging of the thorax in female dogs with mammary tumors. Acta Veterinaria Scandinavica, 52(1), 20.
Prather, A. B., Berry, C. R., & Thrall, D. E. (2005). Use of radiography in combination with computed tomography for the assessment of noncardiac thoracic disease in the dog and cat. Veterinary Radiology & Ultrasound, 46(2), 114–121.
Schulman, F. Y., Ribas, J. L., Carpenter, J. L., Sisson, A. F., & LeCouteur, R. A. (1992). Intracranial meningioma with pulmonary metastasis in three dogs. Veterinary Pathology, 29(3), 196–202.
Silver, K. I., Patkar, S., Mazcko, C., Berger, E. P., Beck, J. A., & LeBlanc, A. K. (2023). Patterns of metastatic progression and association with clinical outcomes in canine osteosarcoma: A necropsy study of 83 dogs. Veterinary and Comparative Oncology, 21(4), 646–655.
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