La existencia sincrónica del carcinoma papilar y medular es muy infrecuente, y pueden tener una presentación discreta o mixta. Aunque su patogénesis no está del todo clara, actualmente se han propuesto diversas teorías que involucran mutaciones genéticas, factores locales y factores ambientales en su aparición. De acuerdo con sus características histológicas, estas son muy variables, y presentan diferentes patrones estructurales. El abordaje terapéutico difiere en ambos tipos histopatológicos, por lo que es importante saber de la existencia sincrónica de estos tumores.

The synchronous existence of papillary and medullary carcinoma is infrequent, and they can have a discrete or mixed presentation. About its pathogenesis, it is not entirely clear, however, various theories have currently been proposed where genetic mutations and local and environmental factors involved in its appearance are involved. According to their histological characteristics, these are highly variable, presenting different structural patterns. The therapeutic approach differs in both histopathological types, so it is important to know about the synchronous existence of these tumors.

The synchronous existence of papillary and medullary carcinoma is infrequent, and they can have a discrete or mixed presentation. About its pathogenesis, it is not entirely clear, however, various theories have currently been proposed where genetic mutations and local and environmental factors involved in its appearance are involved. According to their histological characteristics, these are highly variable, presenting different structural patterns. The therapeutic approach differs in both histopathological types, so it is important to know about the synchronous existence of these tumors.

Objetivo: Analizar las principales características clínicopatológicas de pacientes con carcinoma de mama en quienes se realizó biopsia de ganglio centinela con azul patente más impronta en el estadiaje axilar. El estudio. Serie descriptiva, evaluó una serie de 20 casos con diagnóstico anatomopatológico de carcinoma ductal infiltrante atendidas en el área de Cirugía Oncológica del Hospital de Alta Complejidad “Virgen de la Puerta” EsSalud, La Libertad - Perú, durante el periodo febrero 2017 - enero 2018. Hallazgos: La sensibilidad y especificidad de la impronta de ganglio centinela fue de 75% respectivamente. El valor predictivo positivo y negativo fue de 67% y 82%. El cociente de probabilidad positivo y negativo fue de 3,0 y 0,33. El índice de Kappa fue 0,2 de considerado como un índice de concordancia. Conclusiones: La técnica del ganglio centinela es una buena altern...

Objetive: To analyze the main clinical-pathological characteristics of patients with breast carcinoma in whom a sentinel lymph node biopsy was performed with patent blue plus imprint in the axillary staging. The study. This descriptive series evaluated a series of 20 cases of patients with an anatomopathological diagnosis of infiltrating ductal carcinoma treated in the area of ​​Oncological Surgery of the Hospital of High Complexity "Virgen de la Puerta" EsSalud, La Libertad - Peru, during the period February 2017 until January 2018. Findings: The sensitivity and specificity of the sentinel lymph node imprint was 75% respectively. The positive and negative predictive value was 67% and 82% respectively. The positive and negative likelihood ratio was 3.0 and 0.33. The Kappa index was 0.2 of considered as a concordance index. Conclusions. The sentinel lymph node technique is a good alte...