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Rev. senol. patol. mamar. (Ed. impr.) ; 33(1): 3-8, ene.-mar. 2020. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-193240

RESUMO

OBJETIVO: Evaluar el rendimiento de la biopsia por punción (BPP) en el diagnóstico de tumor filodes (TF) de la mama. MATERIAL Y MÉTODOS: Se han revisado todos los diagnósticos anatomopatológicos de TF emitidos tanto en BPP como en biopsia quirúrgica (BQ). Se analizan las características clínicas, de imagen y patológicas de los casos y la concordancia diagnóstica entre la BPP y la BQ. RESULTADO: Se han estudiado un total de 87 casos con diagnóstico de TF, 16 en BPP y 71 en BQ. En 18 casos se dispuso de BPP y BQ. Los TFB diagnosticados en BPP fueron: 7 FAD (uno de ellos de la variedad celular), 2 TFB, un TFL, 2TFM y un hamartoma. Dos casos de TFB en BQ habían sido diagnosticados respectivamente en la BPP de fibrosis e hiperplasia. Un TFM en BPP resultó ser un TFL en la BQ. Hubo concordancia diagnóstica en un TFL y un TFM. Se detectaron 5 (27%) falsos negativos y 8 falsos positivos (38%). CONCLUSIONES: El rendimiento de la BPP en el diagnóstico de los TF es bajo con una alta tasa de falsos negativos y falsos positivos. Por ello se aconseja emitir un diagnóstico en la BPP de lesión fibroepitelial con estroma celular dejando pendiente un diagnóstico definitivo a disponer de la BQ


OBJECTIVE: To evaluate the role of core needle biopsy (CNB) in the diagnosis of phyllodes tumour (PT) of the breast. MATERIAL AND METHODS: All pathological diagnoses of PT in both CNB and surgical biopsy (SB) were reviewed. The clinical, imaging and pathological characteristics of the cases and the diagnostic agreement between CNB and SB were analysed. RESULT: A total of 87 cases with a diagnosis of PT, 16 in CNB and 71 in SB, were studied. In 18 cases, CNB and SB were available. Benign PT diagnosed in CNB consisted of: 7 fibroadenomas (one of them cellular), 2 benign PT, 1 borderline PT, 2 malignant PT, and 1 hamartoma. Two cases of benign PT in SB had been diagnosed with CNB as fibrosis and hyperplasia. One PT diagnosed as malignant in CNB was diagnosed as a borderline PT in SB. There was diagnostic agreement in 1 borderline PT and 1 malignant PT. We detected 5 (27%) false negatives and 8 false positives (38%). CONCLUSIONS: The efficiency of CNB in the diagnosis of PT is low, with a high rate of false negatives and false positives. Therefore, it is advisable to suggest a diagnosis of fibroepithelial lesion with cellular stroma in CNB, reserving definitive diagnosis to SB


Assuntos
Humanos , Feminino , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Biópsia por Agulha/métodos , Neoplasias da Mama/patologia , Tumor Filoide/patologia , Reações Falso-Negativas , Reações Falso-Positivas
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