Browsing by Author "Romero Procel, Rachell Alejandra"

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    Correlación entre estudios citológicos e histopatológicos en el diagnóstico de masas mamarias en perras de la ciudad de Cuenca, Ecuador
    (Universidad de Cuenca. Facultad de Ciencias Agropecuarias, 2026-02-12) Vásquez Panjon, Marco Vinicio; Romero Procel, Rachell Alejandra; Loman Zúñiga, Edgar Iván
    The objective of this study was to evaluate the agreement between cytological and histopathological diagnoses of mammary masses in female dogs from the city of Cuenca, Ecuador, as well as to determine the diagnostic sensitivity of cytology and to analyze the influence of clinical and technical variables on this agreement. A prospective observational study was conducted in 26 female dogs with mammary masses, which underwent cytological evaluation by fine-needle aspiration, non-aspiration puncture, or direct imprinting, and histopathological examination obtained through surgical excision or punch biopsy of the same tissue. Diagnoses were classified as benign or malignant lesions. Histopathological analysis revealed that 76.9% of the masses were benign and 23.1% malignant, whereas cytology classified 53.8% as benign and 46.2% as malignant. The diagnostic agreement between the two methods was acceptable (κ = 0.358). The sensitivity and specificity of cytology for the identification of malignant and benign lesions were 83% and 65%, respectively, using histopathology as the reference standard. No statistically significant associations were found between diagnostic agreement and variables such as age, breed, or sample quality (p > 0.05). Overall, the results indicate that cytology is a sensitive and useful diagnostic tool as an initial method for the evaluation of mammary masses in female dogs; however, histopathological examination remains the reference method for definitive diagnosis.