腫瘍で最も多いのは子宮！

うさぎの腫瘍の中で最も多いものの一つが子宮腫瘍です。

子宮腫瘍の中でも、特に子宮腺癌が多いことが、日本、タイ、ドイツ など複数の国の研究で報告されています。

さらに、フィンランド の研究では、健康に見えるうさぎを組織学的に検査したところ、44％に子宮の異常が認められました。

また、子宮の悪性腫瘍は年齢とともに発症リスクが高くなることも報告されています。

臨床現場でも、うさぎの子宮腫瘍は比較的よく遭遇する疾患であり、実際に治療を行う機会もたくさんありました。

そのため、雌のうさぎを飼育されている方には、予防の観点から避妊手術をおすすめします。

Among tumors in rabbits, uterine tumors are among the most common.

Among uterine tumors, uterine adenocarcinoma is reported to be the most frequent type in multiple studies from Japan, Thailand, and Germany.

Furthermore, a study from Finland found that 44% of rabbits considered clinically healthy had uterine abnormalities detected on histopathological examination.

It has also been reported that the risk of malignant uterine tumors increases with age.

In clinical practice, uterine tumors are commonly encountered in rabbits, and treatment is frequently required.

For this reason, we recommend spaying female rabbits as a preventive measure.

文献

Bertram, C. A., Müller, K., & Klopfleisch, R. (2018). Genital tract pathology in female pet rabbits (Oryctolagus cuniculus): A retrospective study of 854 necropsy examinations and 152 biopsy samples. Journal of Comparative Pathology, 165, 41–50.

Bertram, C. A., Bertram, B., Bartel, A., Ewringmann, A., Fragoso-Garcia, M. A., Erickson, N. A., Müller, K., & Klopfleisch, R. (2020). Neoplasia and tumor-like lesions in pet rabbits (Oryctolagus cuniculus): A retrospective analysis of cases between 1995 and 2019. Journal of the American Veterinary Medical Association, 257(10), 1045–1052.

Mäkitaipale, J., Airas, N., Engblom, S., & Lindén, J. (2022). Prospective survey of neoplastic and non-neoplastic uterine disorders in 116 domestic rabbits (Oryctolagus cuniculus). Journal of Exotic Pet Medicine, 41, 3–8. https://doi.org/10.1053/j.jepm.2022.01.001

Pornsukarom, S., Sudjaidee, P., Ratipunyapornkum, N., Tungjitpeanpong, T., Chettanawanit, A., Amornteparak, C., & Sananmuang, T. (2023). Analysis of occurrence and risk factors associated with pet rabbits’ tumors in Central Thailand. Journal of Veterinary Medical Science, 85(12), 1341–1347. https://doi.org/10.1292/jvms.23-0149

Settai, K., Kondo, H., & Shibuya, H. (2020). Assessment of reported uterine lesions diagnosed histologically after ovariohysterectomy in 1,928 pet rabbits (Oryctolagus cuniculus). Journal of the American Veterinary Medical Association, 257(10), 1045–1050. https://doi.org/10.2460/javma.2020.257.10.1045