RESUMO
Introducción: el papiloma de plexos coroideos es un tipo de tumor cerebral o neoplasia papilar intraventricular de origen neuroectodérmico (se deriva del epitelio de los plexos coroideos). Junto con el carcinoma de plexos coroideos, de similar origen, constituye 3-5 por ciento del total de tumores intracraneales de la infancia.Objetivo: presentar el caso de un niño con diagnóstico de papiloma de plexos coroideos con antecedente prenatal de ventriculomegalia. Presentación del caso: neonato masculino nacido en el Hospital Roberto Galindo Terán, en Cobija, Departamento de Pando (Bolivia). Nació producto de un parto distócico por cesárea a las 39 semanas, debido al antecedente prenatal de ventriculomegalia, diagnosticada en el ultrasonido transfontanelar a las 32 semanas. Se le realizó un ultrasonido craneal con transductor neonatal, en el que se observó, al nivel de los cuernos occipitales, una masa hiperecogénica lobulada en los plexos coroideos con hidrocefalia comunicante. Se le diagnosticó papiloma de plexos coroideos. Discusión: la intervención quirúrgica es el tratamiento de elección para los papilomas de plexos coroideos, puesto que, además de extirpar el tumor, en la mayoría de los casos se elimina la hidrocefalia. Los avances de las técnicas quirúrgicas aseguran la retirada o disminución de la aferencia vascular tumoral y, consecuentemente, que la tasa de mortalidad sea baja.Conclusiones: ante un neonato con antecedente prenatal de ventriculomegalia o signos y síntomas relacionados con hidrocefalia, se debe sospechar la presencia de papiloma de plexos coroideos. El diagnóstico debe ser confirmado por estudios imagenológicos(AU)
Introduction: the choroid plexus papilloma is a type of brain tumor or intraventricular papillary neoplasm of neuroectodermal origin (derived from the epithelium of the choroid plexus). Together with choroidal plexus carcinoma, of similar origin, it constitutes 3-5 percent of all childhood intracranial tumors.Objective: to present the case of a child with a diagnosis of choroid plexus papilloma with a prenatal history of ventriculomegaly.Case presentation: male newborn born in the Hospital Roberto Galindo Terán, in Cobija, Pando Department (Bolivia). He was born due to a cesarean birth at the 39th week, due to a prenatal history of ventriculomegaly, diagnosed in the transfontanellar ultrasound at 32 weeks. A cranial ultrasound was carried out with a neonatal transducer, in which a hyperechoic mass lobulated in the choroid plexuses with communicating hydrocephalus was observed at the level of the occipital horns. He was diagnosed with choroid plexus papilloma.Discussion: surgical intervention is the treatment of choice for choroid plexus papillomas, since, in addition to removing the tumor, in most cases hydrocephalus is eliminated. Advances in surgical techniques ensure the removal or reduction of tumor vascular aference and, consequently, that the mortality rate is low.Conclusions: in the presence of a neonate with a prenatal history of ventriculomegaly or signs and symptoms related to hydrocephalus, the presence of choroid plexus papilloma should be suspected. The diagnosis must be confirmed by imaging studies(AU)
Assuntos
Humanos , Masculino , Recém-Nascido , Papiloma do Plexo Corióideo/etiologia , Papiloma do Plexo Corióideo/epidemiologia , Papiloma do Plexo Corióideo/cirurgia , Papiloma do Plexo Corióideo , Relatos de CasosRESUMO
In recent years, few studies have specifically focused on only histological features in choroid plexus tumors. We retrospectively reviewed the clinicopathologic and histological features in 37 patients with choroid plexus tumors and correlated these with glial fibrillary acidic protein (GFAP) expression and proliferation cell nuclear antigen (PCNA), p53, p21, and Rb labeling indexes, with special attention to tumor recurrence/regrowth. The study included 24 choroid plexus papillomas (CPPs), 4 atypical choroid plexus papillomas (ACPPs), and 9 choroid plexus carcinomas (CPCs). Patient age ranged from 15 to 70 years (mean 44 years). Most of the choroid plexus tumors were located in the IV ventricle. Recurrence was observed in 21 (52%) cases, 14 of which were CPP and 7 of which were CPC (P = 0.032). Histologic findings included major necrosis, fibrosis and psammoma bodies, amyloid deposits, inflammation, and thick vessels in recurrent tumors. The PCNA labeling index was 52.04 + or - 13.92 in CPPs, 76.50 + or - 17 in ACPPs, and 95.22 + or - 21.34 in CPCs (P = 0.009), and 67.43 + or - 28 in recurrent tumors. Similar values were found for p53, p21, and Rb. Furthermore, we observed that these presented more histological changes, adding, than nonrecurrent tumors, as well as a higher proliferation index of cell-cycle markers, and these were dependent predictor factors of survival. Recurrent tumors showed a different biological behavior than nonrecurrent tumors, but histological observations showed no mitotic features in order to consider them as grade II.