A case is presented of lipoma arborescens of the knee with an atypical, sudden onset. Arthrography and ultrasound confirmed a synovially based lesion in the suprapatellar pouch. CT enabled a preoperative diagnosis of lipoma arborescens to be made, which was confirmed by surgical excision of a fronded fatty mass. Histological studies showed hyperplastic villi with mature adipose cells in the subsynovial layer. Resection of the synovium is considered curative, with only one case of recurrence after synovectomy having been reported [4].
RESUMENAntecedentes: La mola hidatidiforme (MH) se caracteriza por la degeneración hidrópica de las vellosidades coriales, hiperplasia del trofoblasto y se clasifica en completa (MC) y parcial (MP), y difieren en su cariotipo, histopatología, clínica y riesgo de malignidad. Constituye el 1% de las pérdidas fetales en menores de 17 semanas. El objetivo de esta comunicación es exponer un caso de MP con feto de 25 semanas, al cual se le realizó autopsia en el 2014. Caso clínico: Primigesta de 21 años con pobre control prenatal y embarazo de 25 semanas con diagnóstico de preeclampsia y óbito fetal de sexo masculino de 615 g, al que se le solicitó autopsia demostrándose malformaciones múltiples con agenesia del cuerpo calloso, hidrocefalia supratentorial, hipoplasia cerebelosa, meningocele sacro, micropene, hipospadias y retardo del crecimiento intrauterino, la placenta de 750 g demostró hallazgos de enfermedad trofoblástica gestacional de tipo MP. Discusión: La MP presenta vellosidades coriónicas con hiperplasia trofoblástica y feto que tiende a fallecer en una temprana edad gestacional. El feto puede presentar anomalías congénitas secundarias a la aneuploidia y la distinción se basa en histopatología de la placenta, en casos difíciles se emplea citogenética o citometría de flujo. En el presente caso se encontraron características placentarias (degeneración hidrópica vellositaria, inclusiones e hiperplasia trofoblástica) y las malformaciones fetales relacionadas. Conclusión: El estudio histopatológico de la placenta y del producto de la gestación permiten el diagnóstico definitivo para poder determinar el seguimiento de la paciente y disminuir así las complicaciones. PALABRAS CLAVE: Mola hidatidiforme parcial, aneuploidía, enfermedad trofoblástica gestacional SUMMARYBackground: Hydatidiform moles (HM) are characterized by hydropic degeneration of chorionic villi, hyperplasia of the trophoblast and is classified in complete (CM) and partial (PM), and they are different in their karyotype, histopathology, clinical and risk of malignancy. It constitutes 1% of abortion in under 17 weeks. The purpose of this communication is to present a case of PM with 25-week fetus, which fetal autopsy in 2014. Clinical case: Primigravid of 21 years old, with a pregnancy of 25 weeks diagnosed with preeclampsia and stillbirth of 615 g, autopsy demonstrating multiple malformations with agenesis of corpus callosum, hydrocephalus, hypoplasia of the cerebellum, myeloschisis in the sacral region, micropenis, hypospadias and intrauterine growth retardation, the placenta (750 g) has findings of gestational trophoblastic disease
This study presents a correlation between prenatal ultrasonographic images and neuropathologic findings of postmortem tissue samples from five confirmed cases of perinatal Zika virus (ZIKV) infection belonging to the cohort of the ZEN Initiative in Bucaramanga, Colombia. Deaths occurred between June 2016 and March 2017. Mothers consulted with ZIKV infection clinical manifestations or fetal central nervous system (CNS) abnormalities or both. A detailed ultrasound scan and neurosonographic protocol was performed by maternal fetal specialists. Perinatal autopsies were performed following the Colombian National Health Institute's ZIKV protocol. The autopsies were from two fetal deaths, and three early neonatal deaths. Gestational age was between 26 2/7 and 38 2/7 weeks. Two cases were classified as mild microcephaly. Few findings by ultrasound and pathology were found in case 1 because it was a late infection; the other cases presented findings corresponding to congenital Zika syndrome: craniofacial malformations, cerebellar hypoplasia, anomalies of the corpus callosum and ventriculomegaly, all confirmed in autopsy specimens. By ultrasonography, hyperechogenicities were seen in several brain structures, which correspond to cortical and periventricular calcifications, subependymal glial reactivity and perivascular rings. The ultrasound and pathological findings show a wide spectrum of CNS anomalies that confirm the neurotropic effect of the ZIKV, recognizing the neuroimaging findings of this disease (unilateral ventriculomegaly, alterations in the corpus callosum and cerebellum, and calcifications) are highly suggestive of ZIKV infection.
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