Piimanäärme kasvajad kassidel Eestis
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Kuupäev
2025
Kättesaadav alates
04.09.2025
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Piimanäärme kasvajad on kassidel üks sagedamini esinevaid kasvaja liike maailmas,
moodustades umbes 17% kõikidest emastel kassidel diagnoositud kasvajatest. 85–90%
piimanäärme kasvajatest kassidel on pahaloomulised. Antud asjaolu tõttu on neoplaasiate
varajane tuvastus ja agressiivne ravi olulisel kohal, et hinnata prognoosi elulemusele.
Käesoleva retrospektiivse uurimistöö eesmärgiks oli uurida Eestis erinevate piimanäärme
kasvajate tüüpide esinemist kassidel Eesti Maaülikooli Veterinaarse biomeditsiini ja
toiduhügieeni õppetooli patohistoloogilisse uuringusse saadetud koeproovide põhjal.
Analüüsimiseks kasutati aastatel 2013-2024 laborisse saadetud 120 loomalt kogutud 136
koeproovi patohistoloogilisi raporteid. Saadud andmete põhjal teostati kirjeldav ja statistiline
analüüs Microsoft 365 Excel programmiga. Pahaloomulised kasvajad moodustasid uuritud
proovidest 65.4% (n = 89) ning healoomulised muutused 33.8% (n = 46). Pahaloomulistest
muutustest esines kassidel enim tubulaarset kartsinoomi (n = 23), kompaktset kartsinoomi (n
= 13) ja juhasisest papillaarset kartsinoomi (n = 13). Healoomulistest kasvajatest esines enim
juhasisest papillaarset adenoomi (n = 11) ning piimajuhade adenoomi (n = 11). Piimanäärme
hüper- ja düsplaasiatest diagnoositi enim piimajuhade ektaasiat (n = 5) ja piimajuhade tsüste
(n = 5). Diagnoosimise hetkel oli kasside keskmiseks vanuseks 11.3 aastat ning
mediaanvanuseks 11 aastat. Statistilise analüüsi käigus leiti esinevat tugev seos vanuserühma
ja piimanäärme muutuste pahaloomulisuse vahel. Muude tegurite vahel statistilist olulisust ei
tuvastatud. Üldjuhul ühtisid töö tulemused kirjandusandmetega, kuid proovide ja täiendavate
andmete vähesuse tõttu vajab valdkond Eestis täiendavaid uuringuid.
Mammary gland tumors are one of the most common types of tumors in felines, accounting for approximately 17% of all tumors diagnosed in female cats. 85–90% of mammary tumors in cats are malignant. Due to this fact, early detection and aggressive treatment is crucial for assessing the prognosis for survival. The aim of this retrospective study was to investigate the occurrence of different types of mammary tumors in cats in Estonia, based on tissue samples sent for histopathological examination to the Chair of Veterinary Biomedicine and Food Hygiene at the Estonian University of Life Sciences. Histological reports of 136 tissue samples collected from 120 animals that were sent to the laboratory in the years 2013-2024 were used for analysis. Analysis of the obtained data was performed using Microsoft 365 Excel. Malignant tumors accounted for 65.4% (n = 89) of the samples studied, and benign changes accounted for 33.8% (n = 46). Among the malignant changes, the most common types in cats were tubular carcinoma (n = 23), solid carcinoma (n = 13), and intraductal papillary carcinoma (n = 13). Among the benign tumors, the most common were intraductal papillary adenoma (n = 11) and ductal adenoma (n = 11). The most frequently diagnosed hyperplastic and dysplastic changes were duct ectasia (n = 5) and ductal cysts (n = 5). At the time of diagnosis, the mean age of cats was 11.3 years, with a median age of 11 years. Statistical analysis revealed a strong correlation between age group and the malignancy of mammary changes. No statistical significance was found between other factors. In general, the results of the study were consistent with the literature. Due to the limited number of samples and additional data, further research is needed in this field in Estonia.
Mammary gland tumors are one of the most common types of tumors in felines, accounting for approximately 17% of all tumors diagnosed in female cats. 85–90% of mammary tumors in cats are malignant. Due to this fact, early detection and aggressive treatment is crucial for assessing the prognosis for survival. The aim of this retrospective study was to investigate the occurrence of different types of mammary tumors in cats in Estonia, based on tissue samples sent for histopathological examination to the Chair of Veterinary Biomedicine and Food Hygiene at the Estonian University of Life Sciences. Histological reports of 136 tissue samples collected from 120 animals that were sent to the laboratory in the years 2013-2024 were used for analysis. Analysis of the obtained data was performed using Microsoft 365 Excel. Malignant tumors accounted for 65.4% (n = 89) of the samples studied, and benign changes accounted for 33.8% (n = 46). Among the malignant changes, the most common types in cats were tubular carcinoma (n = 23), solid carcinoma (n = 13), and intraductal papillary carcinoma (n = 13). Among the benign tumors, the most common were intraductal papillary adenoma (n = 11) and ductal adenoma (n = 11). The most frequently diagnosed hyperplastic and dysplastic changes were duct ectasia (n = 5) and ductal cysts (n = 5). At the time of diagnosis, the mean age of cats was 11.3 years, with a median age of 11 years. Statistical analysis revealed a strong correlation between age group and the malignancy of mammary changes. No statistical significance was found between other factors. In general, the results of the study were consistent with the literature. Due to the limited number of samples and additional data, further research is needed in this field in Estonia.
Kirjeldus
Lõputöö
Veterinaarmeditsiini õppekaval
Märksõnad
magistritööd, patohistoloogia, neoplaasia, hüperplaasia, piimanäärmed