Valor pronóstico de los receptores hormonales, receptor del factor de crecimiento epidérmico humano, ciclinas D1 y D2, B-Cell Lymphoma2 y ciclooxigenasa-2 en pacientes jóvenes con cáncer de mama / Prognostic value of hormone receptors, human epidermal growth factor receptor, cyclins D1 and D2, B-cell lymphoma 2 and cyclooxygenase-2 in young patients with breast cancer

Objetivo: Valor pronóstico de receptores hormonales (RRHH), expresión de HER-2, ciclinas D1 y D2, bcl-2 y ciclooxigenasa-2 (COX-2) en pacientes de 35 años o menores con cáncer de mama. Sujetos y método: En una serie de 71 pacientes jóvenes, cuya evolución se conocía, analizamos por segunda vez las piezas tumorales mediante inmunohistoquímica y tissue arrays. Evaluamos la influencia pronóstica de estos factores con el test de la chi al cuadrado y el método de Kaplan-Meier. Resultados: El 67% de las pacientes mostraban RRHH positivos y el 48,6% sobreexpresaba el HER- 2. Fueron ciclinas D1 y D2 positivos el 59,1% y 59,7%, respectivamente. El bcl-2 en el 62,5% de los casos, y la COX-2 en el 63,4% de los tumores. La positividad de RRHH y de COX-2 se relacionó significativamente con un mayor riesgo de recidiva local (OR = 4,6, p = 0,03 para RRHH y OR = 3,7, p = 0,02 para COX-2). Conclusiones: La sobreexpresión de RRHH y COX-2 desempeña un papel pronóstico en la progresión del cáncer de mama en mujeres muy jóvenes. La expresión de ciclinas D1 y D2, y bcl-2 no influyó en su evolución(AU)

Objetive: To investigate the value of hormone receptor (HR) status, HER-2, cyclins D1 and D2, bcl-2 and cyclooxygenase-2 (COX-2) in predicting the outcome of very young breast cancer patients (below 35 years). Subjects and method: In this study HR, HER-2, cyclins D1 and D2, bcl-2 and COX-2 were determined for a second time by immunohistochemistry and tissue arrays in a cohort of 71 patients aged less than 35 years with known outcome. The prognostic influence of these factors was evaluated by the chi-square test and Kaplan Meier method. Results: Expression of HR was detected in 67% of the patients, HER-2 in 48.6%, cyclins D1 and D2 in 59.1% and 59.7%, respectively, bcl-2 in 62.5% and COX-2 in 63.4% of breast tumors. HR and COX- 2 overexpression were significantly correlated with a major risk of local relapse (OR: 4.6, P=.03 for HR and OR: 3.7, P=.02 for COX-2). Conclusions: Increased expression of HR and COX-2 may play a role in the progression of primary breast carcinoma in very young patients. Overexpression of cyclins D1 and D2 and bcl-2 had no prognostic value(AU)

Intracystic papillary breast carcinoma with areas of infiltration : Report on two cases.

Intracystic papillary carcinoma of the breast associated with areas of infiltration is rare in that it constitutes less than 1% of breast cancers. After initial radiological study, these tumors show lesions with little likelihood of malignancy in a high proportion of cases. Two cases of intracystic papillary carcinoma associated with infiltration were diagnosed at the Breast Unit of Hospital Infanta Cristina. In both cases, the reason for consultation arose after palpation of a nodule and the initial radiographic analyses showed lesions with little likelihood of malignancy.

El carcinoma papilar intraquístico de mama asociado a áreas de infiltración, es una entidad infrecuente, que constituye menos de un 1% de los cánceres de mama. Se trata un tumor cuyo estudio radiológico inicial muestra lesiones con baja sospecha de malignidad en una proporción elevada de casos. Presentamos dos casos de carcinoma papilar intraquístico, asociados a infiltración diagnosticados en la Unidad de Mama del Hospital Universitario Infanta Cristina. En ambos casos el motivo de consulta fue la palpación de un nódulo y la aproximación radiológica inicial mostró lesiones con baja sospecha de malignidad.

Circulating estradiol defines the tumor phenotype in menopausal breast cancer patients.

OBJECTIVE: To correlate circulating hormone levels with the clinical and biological features of the tumors in menopausal breast cancer patients. DESIGN: Circulating hormone levels were measured in 161 previously untreated menopausal breast cancer patients within 72 h of their planned surgery. The obtained hormone levels were correlated with tumor size, histological and nuclear grade, histological score, axillary nodal status, DNA-ploidy and Ki67-, c-erb-B2-, p53, Bax-, VEGF- and Nup88-expression. RESULTS: The only statistically significant correlations found between circulating hormone levels and all tested variables were an inverse one between estradiol and the expression of the apoptosis-associated Bax gene (p=0.009), and again an inverse correlation between estradiol and the expression of c-erb-B2 (p=0.04). When comparing hormone levels with each other, a significant correlation between estradiol and progesterone (p<0.0001), an inverse one between estradiol and FSH (p=0.04) and a direct one between LH and prolactin (p=0.001) were found. CONCLUSION: Higher circulating estradiol levels in postmenopausal breast cancer patients are associated with molecular features usually defining a biologically less aggressive tumor phenotype.