Acinic cell carcinoma of the parotid gland with four morphological features

Acinic cell carcinoma arising in salivary glands is a rare tumor, accounting for 2% to 5% of the primary neoplasms of the parotid gland. When these tumors are well-differentiated, the neoplasia has innocuous aspect, due to the similarity to normal parotid tissue. This makes the diagnosis difficult. Initially the malignancy of this tumor was uncertain; however, recent studies have declared it as malignant. The female / male ratio is 3:2. The nodule usually presents as solitary and well defined shape. Several authors have used different terms to describe histomorphological patterns of these tumors. Four descriptive categories (solid, microcystic, papillary-cystic and follicular) are useful for pathologists. Here we report a case of a 49 yr old man with a left parotid nodule of 5 cm. Parotidectomy was performed at the Hospital Universitario Miguel Servet, in Zaragoza (Spain). The microscopy showed a tumor with acinic semblance, having the four morphologic patterns previously described. The morphological and immunohistochemical study was consistent with the diagnosis of acinic cell carcinoma

Núcleo de microbiota en el cáncer de pulmón central con enriquecimiento estreptocócico como posible marcador de diagnóstico

Background: Dysbiosis in lung cancer has been underexplored. The aim of this study was to define the bacterial and fungal microbiota of the bronchi in central lung cancer and to compare it with that of the oral and intestinal compartments. Methods: Twenty-five patients with central lung cancer and sixteen controls without antimicrobial intake during the previous month were recruited. Bacterial and fungal distribution was determined by massive sequencing of bronchial biopsies and saliva and faecal samples. Complex computational analysis was performed to define the core lung microbiota. Results: Affected and contralateral bronchi of patients have almost identical microbiota dominated by Streptococcus, whereas Pseudomonas was the dominant genera in controls. Oral and pulmonary ecosystems were significantly more similar in patients, probably due to microaspirations. Streptococcal abundance in the bronchi differentiated patients from controls according to a ROC curve analysis (90.9% sensitivity, 83.3% specificity, AUC = 0.897). The saliva of patients characteristically showed a greater abundance of Streptococcus, Rothia, Gemella and Lactobacillus. The mycobiome of controls (Candida) was significantly different from that of patients (Malassezia). Cancer patients’ bronchial mycobiome was similar to their saliva, but different from their contralateral bronchi. Conclusions: The central lung cancer microbiome shows high levels of Streptococcus, and differs significantly in its composition from that of control subjects. Changes are not restricted to tumour tissue, and seem to be the consequence of microaspirations from the oral cavity. These findings could be useful in the screening and even diagnosis of this disease

Análisis de la adherencia a medio plazo tras la realización de un programa de rehabilitación cardiaca

Objetivo: Los programas de rehabilitación cardiaca (PRC) son una excelente herramienta para lograr adherencia al cumplimiento terapéutico. El objetivo fue analizar la adherencia a medio plazo e identificar predictores de mala adherencia al cumplimiento farmacológico y a los cambios en el estilo de vida. Material y métodos: Estudio retrospectivo de 100 pacientes remitidos a un PRC en 2018 tras un síndrome coronario agudo (SCA). En la revisión al año se analizó la adherencia a la dieta, al ejercicio físico y la deshabituación tabáquica. Se consideró adherencia óptima si se cumplían los tres ítems. Se estudió el cumplimiento farmacológico empleando el test de Morisky-Green. Se analizaron los predictores de mala adherencia mediante análisis de regresión lineal/logística. Resultados: El 98% de los pacientes presentaron adherencia aceptable a la dieta mediterránea, el 83% buena adherencia al ejercicio físico y el 79% de los fumadores consiguieron dejar de fumar. Respecto a la adherencia farmacológica, el 97% de los pacientes la cumplió de forma correcta. En conjunto consiguieron una adherencia óptima el 68% de los pacientes. La nacionalidad de Europa del este, el sedentarismo y los programas no presenciales fueron predictores de mala adherencia. Los pacientes más jóvenes y la profesión de «cuello azul» mostraron tendencia a mala adherencia, aunque no de forma significativa. Conclusiones: En nuestro entorno existe una buena adherencia a los cambios de estilo de vida y al cumplimiento farmacológico en pacientes que tras un SCA completan un PRC. La nacionalidad Europea del este, el sedentarismo y los programas no presenciales se asociaron con mala adherencia