Verma-Naumoff syndrome: a case report / Síndrome de Verma-Naumoff: a propósito de un caso

In skeletal dysplasias, there are short rib polydactyly syndromes, which traditionally differentiate into four lethal types. This report describes a case of Type III, which presented characteristics of Types I and II. A 38-year-old woman presented fetal growth restriction at 17 weeks and 6 days, decreased amniotic fluid, enlarged and hyperechogenic kidneys, and long bones below the 3rd percentile. Three weeks later, she developed anhydramnia. The couple did not consent to the performance of an invasive test for genetic diagnosis and chose to maintain the pregnancy. At 33 weeks, due to premature labor and interactivity, a cesarean section was performed, giving birth to a female baby, who died due to respiratory failure there were no vocal cords and no trachea visible at laryngoscopy. On physical examination, he had the phenotypic characteristics of the syndrome. An X-ray showed short ribs and severe pulmonary hypoplasia. After birth, the parents chose not to carry out a genetic study or an anatomical examination. Researchers have suggested that there is an intersection of the anatomical changes of the types. This case report supports this theory.

En las displasias esqueléticas, existen síndromes de polidactilia de costillas cortas, que tradicionalmente se diferencian en cuatro tipos letales. Este reporte describe un caso del tipo III, que presentó características de los tipos I y II. Mujer de 38 años con restricción del crecimiento fetal a las 17 semanas y 6 días, líquido amniótico disminuido, riñones agrandados e hiperecogénicos y huesos largos por debajo del percentil 3. Tres semanas después, desarrolló anhidramnia. La pareja no consintió en la realización de una prueba invasiva de diagnóstico genético y optó por mantener el embarazo. A las 33 semanas, debido al parto prematuro y la interactividad, se realizó una cesárea, dando a luz a un bebé, que murió debido a una insuficiencia respiratoria: no había cuerdas vocales ni tráquea visible en la laringoscopia. Al examen físico presentaba las características fenotípicas del síndrome. Una radiografía mostró costillas cortas e hipoplasia pulmonar severa. Después del nacimiento, los padres optaron por no realizar un estudio genético ni un examen anatómico. Los investigadores han sugerido que existe una intersección de los cambios anatómicos de los tipos. Este reporte de caso apoya esta teoría.

Síndrome de Bardet-Biedl: A propósito de un caso / Bardet-Biedl syndrome: About a case

El síndrome de Bardet-Biedl (SBB) es una entidad poco frecuente, con gran heterogeneidad clínica y genética. Pertenece a las ciliopatías y tiene un modo de herencia autosómico recesivo. Hasta la fecha se han identificado más de 26 genes asociados. Afecta múltiples sistemas con compromiso oftalmológico, renal, cognitivo, esquelético, gonadal y ponderal. Su diagnóstico se basa en criterios clínicos y se confirma mediante estudios genéticos específicos. Presentamos el caso de un paciente de 2 años y 7 meses de edad, con polidactilia, obesidad, retraso del neurodesarrollo y afección renal en quien se arribó al diagnóstico clínico de SBB con posterior confirmación mediante estudio molecular. Se detectó una variante patogénica en homocigosis en el gen BBS2. La sospecha y confirmación diagnóstica permitieron el manejo adecuado del paciente, planificar el seguimiento apropiado y completar el asesoramiento genético familiar

Bardet-Biedl syndrome (BBS) is a rare entity that holds a great clinical and genetic heterogeneity. It is a ciliopathy and has an autosomal recessive inheritance. To this day more than 26 associated genes have been identified. It affects multiple aspects predominantly ophthalmological, renal, cognitive, skeletal, gonadal and weight. The diagnosis is based on clinical criteria and confirmed by specific genetic studies. We describe a case of a 2-year-and 7 month old patient with polydactyly, obe39 sity, neurodevelopmental delay and kidney dysplasia in which clinical diagnosis was suspected by criteria and subsequently has confirmation by molecular study. An homozygous pathogenic variant was detected in the BBS2 gene. The diagnostic suspicion and later confirmation allowed the proper management of this patient as well as an appropriate follow-up and complete genetic family counseling

Polidactilia poliaxial. Presentación de casos

RESUMEN La polidactilia es una anomalía congénita caracterizada por la existencia de dedos supernumerarios o bífidos. Esta puede presentarse aislada o asociada a otras malformaciones formando parte de algunos síndromes conocidos. El presente trabajo tiene como objetivo mostrar los resultados quirúrgicos de dos pacientes en edad pediátrica que tuvieron mayor grado de complejidad, de raza negra africana, los cuales presentaban polidactilia y fueron operados por galenos cubanos en la ciudad de Gaborone, en Botswana. Los dos pacientes tenían patrón de herencia autosómica dominante. El tratamiento quirúrgico logró armonía y simetría en miembros superiores e inferiores con buenos resultados estéticos y funcionales.

ABSTRACT Polydactyly is a congenital anomaly characterized by the existence of supernumerary or bifid fingers. This can occur isolated or associated with other malformations as part of some known syndromes. The objective of this research is to show the surgical results of two pediatric patients with a higher degree of complexity, black Africans, who presented polydactyly and were operated on by Cuban doctors in Gaborone city, Botswana. Both patients had an autosomal dominant pattern of inheritance. Surgical treatment achieved harmony and symmetry in upper and lower limbs with good aesthetic and functional results.

Síndrome Towens-Brocks, presentación de caso / Towens-Brocks syndrome. Presentation of a case

RESUMEN Introducción: el Síndrome Townes-Brocks es una enfermedad genética malformativa, que se hereda de forma autosómica dominante, con penetrancia completa y expresividad muy variable. Caracterizada por una triada de defectos congénitos nivel de oído externo, anorrectales, y en la parte distal de las extremidades, sobre todo a nivel de los pulgares, causado por mutaciones en el gen SALL1, que codifica para el factor de transcripción, localizado en cromosoma 16q12.1. Presentación de caso: se presenta una lactante de nueve meses que al nacimiento se diagnosticó ano imperforado, apéndices preauriculares y primer dedo bífido. Se realizó de inmediato el diagnóstico clínico y la intervención quirúrgica que terminó en colostomía bien tolerada, se logró buena nutrición y desarrollo psicomotor. Conclusiones: se considera el diagnóstico clínico precoz, importante para efectuar intervenciones oportunas que permitan mejorar las funciones vitales de estos enfermos, así como brindar un adecuado asesoramiento genético a las familias.

ABSTRACT Introduction: Townes-Brocks syndrome is a malformation genetic disease, is an autosomal dominant genetic disorder, with complete penetrance and highly variable expressivity. It is characterized by a triad of congenital defects at the level of the external ear, anorectal and distal extremities, especially at the level of the thumbs, caused by mutations in the SALL1 gene, which codes for the transcription factor, located on chromosome 16q12.1. Case presentation: a 9-month-old female infant was diagnosed at birth with imperforate anus, preauricular appendix and bifid first finger. The clinical diagnosis was immediately made and the surgical intervention ended in a well-tolerated colostomy, achieving good nutrition and psychomotor development. Conclusions: early clinical diagnosis is considered important to carry out timely interventions to improve the vital functions on these patients, as well as to provide adequate genetic counseling to the families.

Síndrome de Ellis Van Creveld / Ellis Van Creveld syndrome

Resumen El síndrome de Ellis van Creveld es un trastorno autosómico recesivo, caracterizado por mutaciones en los genes ECV y ECV2, los cuales son importantes para el desarrollo osteocondral. A nivel mundial, se han reportado aproximadamente 300 casos ,presentándose con mayor frecuencia en poblaciones endogámicas. Se caracteriza por distrofias óseas, displasias ectodérmicas y malformaciones cardíacas. El diagnóstico clínico puede ser confirmado mediante pruebas moleculares. A continuación, se presenta el caso de una paciente diagnosticada con el síndrome, la cual fue evaluada de manera interdisciplinaria. Esta revisión permitió dar a conocer un nuevo caso de la patología, relacionar las manifestaciones clínicas de la paciente con la literatura y describir nuevos hallazgos que pueden correlacionarse con el síndrome.

Abstract Ellis Van Creveld syndrome is an autosomal recessive disorder, characterized by mutations of the genes ECV and ECV2, which are very important in the osteochondral development. Worldwide, there have been reported around 300 cases that are commonly evidenced in populations where endogamy is typical. It is clinically characterized by bone dystrophies, ectodermal dysplasias, and congenital heart defects; the diagnosis can be confirmed by molecular tests. In the lines below, a case of a patient that suffers from this syndrome, and that was examined in an interdisciplinary way will be presented. This review allows us to show a new case of this pathology, to relate the clinical symptoms of the patient with the existing literature, and to describe new findings that can be correlated with the Ellis Van Creveld condition.

Síndrome de Ellis-van Creveld. Reporte de un caso en Ecuador / Ellis-van Creveld Syndrome. A case report in Ecuador / Síndrome de Ellis-Van Creveld. Relato de um caso no Equador

Resumen: El síndrome de Ellis-van Creveld es una rara anormalidad genética autosómica recesiva causada por mutaciones en el cromosoma 4p16. Presenta una tétrada típica: condrodistrofia, polidactilia postaxial, displasia ectodérmica y cardiopatía congénita, siendo esta última la principal determinante de la mortalidad. Desde que fue descrito en 1940, se han registrado 150 casos en la literatura científica; en Sudamérica son pocos los casos registrados y en Ecuador no se encontró ningún caso publicado. Se presenta un paciente asintomático de 20 años que acude a un control médico de rutina donde se evidencia un soplo cardíaco.

Summary: Ellis-van Creveld syndrome is a rare autosomal recessive disorder. It is caused by a mutation in 4p16 chromosome. It is characterized by a classical tetrad: chondrodystrophy, postaxial polydactyly, ectodermal dysplasia, and congenital heart defect. The congenital heart defect is the main determinant of mortality. Ellis-van Creveld syndrome was described in 1940; it has been registered 150 case reports. There are few reports in South America. In Ecuador, it wasn't found case reports. A 20 years old asymptomatic patient is presented, who goes to routine health care and is found to have a heart murmur.

Resumo: A síndrome de Ellis-van Creveld é uma esquisita doença autossômica recessiva. É causada por uma mutação no cromossomo 4p16. É caracterizada por quatro sinais típicas: condrodistrofia, polidactilia pós-axial, displasia ectodérmica e cardiopatia congênita. O defeito cardíaco congênito é o principal determinante da mortalidade. Desde que foi descrito em 1940 tenham sido registrados 150 relatos de caso. Na America do Sul existem poucos relatos, e no Equador não se encontrou nenhum publicado. É apresentado um paciente assintomático de 20 anos que vai para o controle médico de rotina, onde é encontrada uma bulha cardíaca.

Variante patogénica homocigótica del gen BBS10 en un paciente con síndrome de Bardet-Biedl / A pathogenic homozygous variant of the BBS10 gene in a patient with Bardet Biedl syndrome

Resumen El síndrome de Bardet-Biedl es una enfermedad hereditaria, autosómica recesiva, con gran heterogeneidad de locus, que pertenece a las denominadas ciliopatías, denominadas así por la deficiencia funcional presente y porque las proteínas afectadas se localizan en el cilio primario. El síndrome afecta múltiples sistemas, con compromiso visual, renal, cognitivo, esquelético y gonadal, y obesidad. Este síndrome presenta una gran variabilidad intrafamiliar e interfamiliar. Se presenta el caso clínico de un paciente adolescente con diagnóstico de síndrome de Bardet-Biedl, así como su manejo, los resultados de la secuenciación de 22 genes y el análisis actualizado de la literatura médica. Se recopiló la información clínica y, previo consentimiento informado, se hizo la prueba de panel de secuenciación multigénica de los genes implicados. El paciente es hijo de la unión de personas consanguíneas. Fue el primer afectado en la familia y presentaba polidactilia posaxial, obesidad, micropene, retinitis pigmentaria y dificultades de aprendizaje. En el panel multigénico, se identificó la variante patogénica homocigótica c.39_46del en el gen BBS10 y otras variantes de genes BBS asociadas con la obesidad. Dado que el síndrome de Bardet-Biedl es una enfermedad huérfana rara, interpretar el pleiotropismo y la heterogeneidad de locus y de alelos, constituye un reto. La confirmación molecular permite el manejo adecuado de los pacientes, así como el seguimiento y el asesoramiento genético apropiados.

Abstract The Bardet-Biedl syndrome is an autosomal recessive hereditary disorder with vast locus heterogeneity that belongs to the so-called ciliopathies, whose proteins are localized in the primary cilia and present functional deficiency. The multisystemic features of the disease include ocular, renal, cognitive, skeletal, as well as gonadal involvement and obesity, among others, with high inter- and intrafamilial variability. We describe the clinical case of an adolescent male patient with Bardet-Biedl syndrome, including the approach, the results from a 22-gene sequencing panel, and the analysis of updated scientific literature. We collected the clinical data of the patient and, after obtaining the informed consent, we conducted a multigenic sequencing panel oriented to known implicated genes. The patient was born to consanguineous parents and was the first affected member of the family. He presented with postaxial polydactyly, obesity, micropenis, retinitis pigmentosa, and learning disability. The multigenic panel allowed the identification of the homozygous pathogenic variant c.39_46del in the BBS10 gene and in other BBS genes variants associated with obesity. As the Bardet-Biedl syndrome is a rare disease, it is challenging to interpret its pleiotropism and gene/allelic heterogeneity. Its confirmation by molecular tests allows an adequate approach, follow-up, and genetic counseling of the patient and the family.

Polidactilia, holoprosencefalia, labio y paladar hendido: no siempre es lo que parece / Polydactyly, holoprosencephaly, cleft lip and cleft palate are not always what they seem: Case report

Reportamos un neonato masculino con defectos de línea media, cardiopatía congénita y polidactilia, características sugestivas de trisomía 13. Sin embargo, el reporte de cariotipo fue normal. Por hallazgos clínicos, el diagnóstico final probable fue pseudotrisomía 13. Aunque el pronóstico de ambas condiciones es pobre, los estudios genéticos siempre son necesarios para establecer una adecuada asesoría genética. Si bien hay síndromes con presentación similar, como el de Meckel, el de Smith-Lemli- Opitz, el de Pallister-Hall y el hidroletalus, se puede realizar una aproximación diagnóstica basada en los antecedentes perinatales, el peso al nacer, el tiempo de supervivencia y algunos rasgos característicos de cada síndrome. Además, pueden existir, en algunos países, limitaciones para realizar estudios genéticos, por lo que los criterios clínicos pueden ser relevantes.

We report a male infant with midline defects, congenital heart disease and polydactyly, features suggestive of trisomy 13. However, the report of the karyotype was normal. By clinical findings the final diagnosis was likely to be Pseudotrisomy 13. Although the prognosis is poor in both conditions, the genetic study is always necessary to establish an adequate genetic counseling. Although there are syndromes with similar presentation as Meckel syndrome, Smith-Lemli-Opitz syndrome, Pallister-Hall syndrome and hydrolethalus, it is possible to make a diagnostic approach based on the perinatal history, birth weight, survival time, and some characteristics of each syndrome. However, limitations may exist to perform genetic studies in some countries, therefore the clinical criteria may be relevant.

Prevalencia de defectos congénitos diagnosticados en el momento del nacimiento en dos hospitales de diferente nivel de complejidad, Cali, Colombia, 2012-2013 / Prevalence of birth defects according to the level of care in two hospitals, Cali, Colombia, 2012-2013

Introducción. Los defectos congénitos son alteraciones morfológicas que pueden ser diagnosticadas antes, durante o después del nacimiento. Se han implementado diversos sistemas de vigilancia en hospitales de referencia, principalmente en aquellos de alta complejidad. Objetivo. Comparar la prevalencia de los defectos congénitos en dos hospitales de diferente nivel de complejidad de la ciudad de Cali. Materiales y métodos. Se llevó a cabo un estudio descriptivo basado en la metodología del Estudio Colaborativo Latinoamericano de Malformaciones Congénitas, durante 20 meses en un hospital de mediana complejidad y en otro de alta complejidad. Resultados. Durante el periodo de estudio se atendieron 7.140 nacimientos, en 225 de los cuales se presentó al menos un defecto congénito, con una prevalencia del 1,7 % (IC 95% 1,3-2,0) en el hospital de mediana complejidad y de 7,4 % (IC 95% 6,2-8,7) en el de alta complejidad. En el primero, las frecuencias más altas correspondieron a polidactilia (15 %), apéndice preauricular (8 %) y pie equino varo (7 %), mientras que en el segundo, correspondieron a comunicación interventricular (10 %), hidronefrosis congénita (7 %) y defectos de la pared abdominal (6 %). Conclusiones. La prevalencia de los defectos congénitos varió de un hospital a otro, dependiendo de su nivel de complejidad, y del tipo y la seriedad de los defectos. La vigilancia epidemiológica en los diferentes niveles de atención es una herramienta útil para estimar acertadamente la prevalencia en la ciudad, además de constituir una buena base para la planificación y orientación de los recursos.

Introduction: Birth defects are morphologic alterations diagnosed prenatal or postnatally. Surveillance systems have been used to estimate the prevalence in high complexity care centers; however, the variation of the prevalence among different complexity care centers remains unknown. Objective: To compare the prevalence of birth defects among two different complexity care centers in Cali, Colombia. Materials and methods: A descriptive hospital-based study following the methodology of the Latin American Collaborative Study of Congenital Malformations was conducted during 20 months in a medium complexity hospital and a high complexity hospital. Results: During the study period, 7,140 births were attended of which 225 had at least one birth defect. The prevalence of these was of 1.7% (IC95% 1.3-2.0) and 7.4% (IC95% 6.2-8.7) for the medium complexity hospital and the high complexity hospital, respectively. The highest frequencies for the high complexity care center were: ventricular septal defect, 10%; congenital hydronephrosis, 7%; abdominal wall defects, 6%, and hydrocephalus, 5%, while for the medium complexity were: polydactyly, 15%; preauricular skin tags, 8%; congenital talipes equino varus, 7%, and hemangioma, 6%. Conclusions: The prevalence of birth defects among different complexity care centers varies in quantity, type and severity of the anomaly diagnosed. The surveillance of birth defects is a useful tool for any level of care. It allows estimating more accurately the prevalence of the city, as well being a base for the planning and targeting of resources according to the prevalence of different congenital defects.

Ellis van Creveld: reporte de caso / Ellis van Creveld: Case report

Introduction: Ellis-van Creveld (EVC) (OMIM # 225500) syndrome is a rare skeletal dysplasia disorder transmitted by autosomal recessive inheritance. The diagnosis is made based on phenotypic characteristics such as chondrodysplasia, heart defects and polydactyly. The prognosis depends mainly on the severity of the disease, diagnosis and comprehensive management of the condition. Objective: To describe a patient diagnosed with EVC syndrome. Case report: Newborn diagnosed with EVC syndrome who presented dysmorphic facies, shortened long bones, rhizomelic shortening, small hands, brachydactyly, single transverse palmar crease, postaxial polydactyly in the upper limbs, bilateral preaxial polysyndactyly in lower limbs and hypoplastic nails, complex heart defects and narrow thorax. The evolution was unfavorable; the patient died 8 weeks after birth from complications due to heart defects. Conclusions: EVC syndrome is rare and unknown; therefore, it is important to spread its characteristics within the pediatric community, emphasizing that it affects multiple organ systems and requires a multidisciplinary approach to treat individually each patient, to provide genetic and reproductive counseling to couples and to give information regarding child development expectations.

Introducción: El síndrome Ellis-van Creveld (EVC) (OMIM #225500) es una displasia esquelética rara de herencia autosómica recesiva, cuyo diagnóstico se realiza por sus características fenotípicas como la condrodisplasia, cardiopatía y polidactilia. El pronóstico depende fundamentalmente de la severidad de la cardiopatía, al igual que del diagnóstico y manejo integral oportunos. Objetivo: Caracterizar un paciente con diagnóstico clínico de Síndrome de EVC, cuya baja frecuencia dificulta el correcto diagnóstico en pediatría. Caso clínico: Recién nacido con facies dismórfica, extremidades con huesos largos cortos, acortamiento rizomélico, manos pequeñas, braquidactilia, pliegue palmar único, polidactilia post axial en miembros superiores, polisin-dactilia preaxial bilateral en miembros inferiores y uñas hipoplásicas, cardiopatía compleja y tórax estrecho, en el que se concluyó un diagnóstico clínico de EVC. La evolución fue desfavorable, falleciendo a las 8 semanas de nacimiento por complicaciones secundarias a la cardiopatía. Conclusiones: El síndrome de EVC es de baja frecuencia y poco conocido, por lo que es importante difundir sus características en la comunidad pediátrica, haciendo énfasis en que al afectar múltiples sistemas y órganos, requiere un manejo multidisciplinario con el objetivo de intervenir en la patología individualizando cada paciente; además de consejería genética y reproductiva a las parejas, e información de las expectativas del desarrollo del niño.

Síndrome de Meckel con onfalocele y labio fisurado / Meckel syndrome with omphalocele and cleft lip

El síndrome de Meckel es un desorden autosómico recesivo, raro y letal. Se caracteriza por múltiples malformaciones, entre estas, la triada de encefalocele occipital, riñones poliquísticos y polidactilia. Se presenta un caso con múltiples malformaciones incluyendo las menos frecuentes como el onfalocele, la hipospadia y el labio fisurado.

The Meckel Gruber syndrome is a lethal, rare and autosomal disorder. It is characterized by multiple malformations, among these the triad of occipital encephalocoele, large polycystic kidneys and post-axial polydactyly. A case with multiple malformations, including the less frequent as omphalocele, hypospadias and cleft lip is presented.

Hallazgo de polidactilia y sindactilia en embrión humano de ocho semanas. Presentación de un caso / Finding of Polydactyly and Syndactyly in an Eight-week Human Embryo. A Case Report

Se presenta el caso de un embrión humano correspondiente al estadio 23 de Carnegie, octava semana, y que pertenece a la Embrioteca de la Facultad de Medicina de Villa Clara, procedente de un aborto voluntario de la gestación por misoprostol, en una mujer de 41 años y con 9,6 semanas de amenorrea, antecedentes de buena salud. El objetivo es informar el hallazgo diagnóstico de polidactilia y sindactilia en edad tan temprana como lo es la octava semana del desarrollo. Se reseñan aspectos básicos y clínicos de ambas malformaciones y se muestra el descubrimiento en imágenes digitales. Se enfatiza en la importancia del estudio morfológico de estos productos, lo cual aportaría juicios de valor al consejo genético en gestaciones futuras.

The case of a human embryo at Carnegie stage 23 (eighth weeks), which belongs to the collection of embryos of the Faculty of Medicine in Villa Clara is presented. It was the result of the elective termination of pregnancy using misoprostol in a 41-year-old woman with 9.6 weeks of amenorrhea and a history of good health. The aim of this paper is to inform the diagnostic finding of polydactyly and syndactyly in a stage as early as the eighth week of development. Basic and clinical aspects of both malformations are described and the finding is shown through digital images. The importance of the morphological study of these products is emphasized, which would provide value judgments to genetic counselling in future pregnancies.

Síndrome de Ellis Van Creveld: caso clínico / Ellis Van Creveld syndrome: case report

El Síndrome de Ellis Van Creveld es poco frecuente, hereditario de carácter autosómico recesivo no habiendo predilección por sexo. Se caracteriza por acortamiento acromesomélico, polidactilia postaxial bilateral de manos, condrodisplasia de huesos largos y displasia ectodérmica de uñas y dientes. El conocimiento de la misma es imperativo para un diagnóstico temprano y manejo multidisciplinario oportuno que permita una mejor calidad de vida de estos pacientes.

The Ellis Van Creveld syndrome is rare, hereditary autosomal recessive, without no sex predilection. It is characterized by short-limbed dwarfism, bilateral postaxial hand polydactyl, chondrodysplasia of long bones and ectodermic dysplasia affecting fingernails and teeth. The knowledge of it is essential for early diagnosis and appropriate multidisciplinary management that allows a better quality of life for these patients.

Defecto del canal auriculoventricular, aurícula única y atresia tricuspídea como parte de un caso de síndrome de Ellis-Van Creveld / Atrioventricular canal defect, single atrium and tricuspid atresia as part of a case of Ellis-Van Creveld syndrome

El síndrome de Ellis-Van Creveld (SEVC) o displasia condroectodérmica se debe a una mutación de transmisión autosómica recesiva en el brazo corto del cromosoma 4 y afecta múltiples órganos. Descrito como una tétrada clásica de condrodisplasia, displasia ectodérmica, polidactilia y defectos cardíacos congénitos, sólo se conoce a partir de informes y series de casos. Se describe el caso de un varón de 3 meses, sin antecedentes familiares de importancia, que presentó un cuadro de condrodisplasia, labio superior fusionado al paladar, simpolidactilia posaxial bilateral en las manos, displasia del desarrollo de las caderas, tórax estrecho con costillas cortas y compromiso cardíaco. El presente caso sería la primera comunicación del SEVC en el Perú.

Ellis-Van Creveld Syndrome or chondrectodermal dysplasia is produced by an autosomal recessive inheritance secondary to mutation in the short arm of chromosome 4. The syndrome affects multiple organs. It is described as a clinical tetrad that involves chondrodysplasia, ectodermal dysplasia, polydactyly and congenital heart defects. It is only known from reports and case series. We present a three months old male, without relevant family history, who presented chondrodysplasia, upper lip merged to palate, bilateral sinpolydactyly in the hands, developmental dysplasia of the hip, narrow chest with short ribs, and heart defects. This case is the first report of EVC in Peruvian literature.

Polidactilismo unilateral incomum em equino: relato de caso / Unusual unilateral polydactylism in a horse: a case report

A polidactilia é um defeito genético caracterizado pela duplicação parcial ou completa de um dígito. Estudos em humanos, bovinos, cães e gatos indicam que um gene autossômico dominante de penetração incompleta é o responsável por essa alteração. A polidactilia é rara em equinos e, nessa espécie, sua causa ainda não foi esclarecida. Entretanto, quando ocorre, está relacionada à má formação congênita da falange. Este trabalho descreve, por meio da observação de exames físico, radiográfico e ultrassonográfico, a ocorrência de polidactilia unilateral, com características incomuns, em um equino de nove anos de idade. O animal, com um histórico de claudicação intensa, apresentava, desde o nascimento, divisão completa do dígito do membro torácico direito, com simetria entre as duas porções distais. Ao exame radiográfico, identificou-se a presença de dois dígitos separados e de dimensões semelhantes, sendo esta uma manifestação incomum de polidactilia na espécie equina.

Polydactyly is a genetic disorder characterized by partial or complete duplication of a digit. Studies in humans, cattle, dogs and cats indicate that an autosomal dominant gene of incomplete penetrance is responsible for this change. Polydactyly is rare in horses and its cause remains unclear. However, when it occurs it is related to congenital malformation of the phalanx. This paper describes, through the observation of physical, radiographic and ultrasound finds, the occurrence of unilateral polydactyly, with unusual features in a nine year old horse. Since birth, the animal, which had a history of severe lameness, had complete division of the digit of the right forelimb, with symmetry between the two distal portions. The radiographic examination identified the presence of two separated digits with similar size, which is an unusual manifestation of polydactyly in the equine species.

Type 1 diabetes in a patient with Ellis-van Creveld syndrome / Diabetes tipo 1 em um paciente com a síndrome de Ellis-van Creveld

CONTEXT: Ellis-van Creveld (EVC) syndrome is a rare autosomal recessive disease characterized by disproportionate short stature, narrow thorax, postaxial polydactyly, nail and tooth abnormalities and congenital heart disease. CASE REPORT: The patient was a 22-year-old Caucasian man, the third child of consanguineous parents. He received the diagnosis of insulin-dependent diabetes mellitus (DM) at 16 years of age, and around one year later, he underwent surgery to correct a partial atrioventricular septal defect. Upon physical examination, at 22 years of age, he presented stature of 145.5 cm (P3), weight of 49 kg (P3), head circumference of 54 cm (P2-50), high palate, absence of one of the lower lateral incisor teeth, narrow shoulders, narrowing of the upper thorax, scoliosis, rhizomelic shortening of the upper limbs, brachydactyly, postaxial polydactyly and clinodactyly of the second and third fingers. The lower limbs showed rhizomelic shortening with significant genu valgum (knock-knee deformity), small feet with postaxial polydactyly, syndactyly between the second and third toes and hallux valgus. Multiple melanocytic nevi were evident on the face, thorax and limbs. At that time, he was using neutral protamine Hagedorn (NPH) insulin, with poorly controlled DM. The clinical findings presented led to the diagnosis of EVC syndrome. Only one case of this syndrome has been described with DM so far. Attention is drawn to the fact that the genes associated with this syndrome are located close to those of the Wolfram syndrome, a condition that leads to early-onset diabetes.

CONTEXTO: A síndrome de Ellis-van Creveld (EVC) é uma doença autossômica recessiva rara, caracterizada por baixa estatura desproporcionada, tórax estreito, polidactilia pós-axial, anormalidades em unhas e dentes e cardiopatia congênita. RELATO DO CASO: O paciente é um rapaz caucasiano de 22 anos, o terceiro filho de pais consanguíneos. Recebeu diagnóstico de diabetes melito (DM) insulino-dependente aos 16 anos, sendo que, cerca de um ano depois, foi submetido a cirurgia cardíaca de correção de defeito de septo atrioventricular parcial. Ao exame físico, aos 22 anos, ele apresentava estatura de 145,5 cm (P3), peso de 49 kg (P3), perímetro cefálico de 54 cm (P2-50), palato alto, ausência de um dos dentes incisivos inferiores laterais, ombros estreitos, estreitamento do tórax superior, escoliose, encurtamento rizomélico dos membros superiores, braquidactilia, polidactilia pós-axial e clinodactilia dos segundo e terceiro dedos. Nos membros inferiores, observava-se encurtamento rizomélico com importante geno valgo (deformidade dos joelhos-batidos), pés pequenos com polidactlia pós-axial, sindactilia entre segundo e terceiro dedos, e háluces valgos. Múltiplos nevos melanocíticos eram evidentes na face, tórax e membros. Neste momento ele está em uso de insulina NPH (neutral protamine Hagedorn), com um controle inadequado do DM. Seus achados clínicos levaram ao diagnóstico de síndrome de EVC. Apenas um caso desta síndrome foi descrito com DM até o momento, sendo que chama a atenção o fato de que os genes associados à síndrome se localizam próximo ao da síndrome de Wolfram, uma condição que cursa com diabetes de início precoce.

Diagnóstico prenatal del Síndrome Ellis van Creveld: reporte de caso y revisión de la literatura / Prenatal diagnosis of Ellis-van Creveld syndrome: case report and literature review

Introducción: el síndrome de Ellis van Creveld (EVC) es una entidad rara que se caracteriza por extremidades cortas, polidactilia y defectos cardíacos, que puede ser detectada prenatalmente por medio de ultrasonido. Se analiza un caso con el objetivo de discutir sus características, los posibles diagnósticos diferenciales y el pronóstico. Materiales y métodos: este artículo presenta un caso de diagnóstico prenatal de EVC por medio de ultrasonido, que se confirmó luego del nacimiento. Se realizó una búsqueda bibliográfica en la base de datos Medline vía PubMed en donde se encontraron 579 artículos, de los cuales se revisaron 15 debido a su pertinencia y actualidad. Conclusiones: el síndrome EVC es una condición susceptible de diagnóstico prenatal. Se debe sospechar en caso de mesomelia, polidactilia y defectos cardíacos. El pronóstico depende principalmente del tipo de malformación cardíaca.

Introduction: Ellis van Creveld (EVC) syndrome is a rare genetic disorder which is characterized by a person having short limbs, polydactylia and heart defects; it can be detected prenatally by ultrasound. A case is presented here so that its characteristics, possible differential diagnoses and prognosis can be discussed. Materials and methods: this article presents a case of prenatal diagnosis of EVC by ultrasound which was confirmed shortly after birth. A bibliographic search was made of the Medline via PubMed database; 15 of the 579 articles which were found were reviewed due to their pertinence and topicality. Conclusions: EVC syndrome is a condition which is susceptible to prenatal diagnosis. It should be suspected in cases of mesomelia, polydactyly and cardiac defects. Prognosis mainly depends on the type of cardiac malformation.

Ellis-van Creveld syndrome: oral manifestations and treatment / Síndrome Ellis-van Creveld: manifestações bucais e tratamento

The Ellis-van Creveld syndrome (EVC) or chondroectodermal dysplasia is a rare autosomal recessive disease, with incidence of 1:244,000 for the general population. The exact prevalence is unknown, but believed to be a genetic chromosomal disorder and a higher incidence in women. EVC consist of a tetrad of principal features: chondroectodermal dysplasia, polydactyly, congenital heart defects, and hypoplastic nails and teeth. In this syndrome many other organs can be compromised and other oral manifestations may be present. We report a case of a patient, 17 years old, female, presenting the typical features of EVC and the medical report confirming the condition. Attended at the Center for the Studies and Care of Special Patients of University Paulista - São Paulo, Brazil, seeking dental treatment, reported being dissatisfied with the aesthetic. We analyze the events and the patient's oral condition and its treatment recommended. This study was previously submitted and approved by the University Paulista Ethic Committee with the protocol nº 642/09.

A síndrome de Ellis-van Creveld (EVC) ou displasia condroectodérmica é uma rara doença autossômica recessiva, cuja incidência na população em geral é de 1:224.000. A prevalência exata é desconhecida, acredita-se ser uma desordem genética cromossômica e de maior incidência em mulheres. A EVC é dada pela presença tétrade característica: displasia condroectodérmica, polidactilia, defeitos cardíacos congênitos e unhas e dentes hipoplásicos. Além da tétrade, muitos outros órgãos podem ser comprometidos e outras manifestações bucais podem se fazer presentes. Relata-se um caso clínico de uma paciente, 17 anos, gênero feminino, apresentando as típicas características da EVC e confirmando com laudo médico a patologia. Compareceu ao Centro de Estudos e Atendimento a Pacientes Especiais da UNIP em busca de tratamento odontológico e relatou estar insatisfeita com a estética. Foram analisadas as manifestações e condições bucais da paciente e seu tratamento preconizado.

Fibular dimelia and mirror polydactyly of the foot in a girl presenting additional features of the VACTERL association / Dimelia fibular e polidactilia em espelho do pé em uma menina apresentando achados adicionais de associação VACTERL

CONTEXT: The association between fibular dimelia and mirror polydactyly of the foot is considered to be a very rare lower-limb abnormality. On the other hand, VACTERL is an acronym for a nonrandom association of congenital anomalies for which the etiology is still poorly understood. CASE REPORT: The patient was a seven-month-old white girl whose mother had used misoprostol in the second month of pregnancy to induce abortion. On clinical evaluation, she was small for her age and presented hypotonia, anteverted nares, long philtrum and carp-like mouth. Her left hand had a reduction defect, with absence of the extremities of the second, third and fifth fingers and camptodactyly of the fourth finger. The ipsilateral lower limb presented significant shortening, especially rhizomelic shortening. Her left foot had a mirror configuration with seven toes and no identifiable hallux. The pelvis was hypoplastic. Esophageal atresia with tracheoesophageal fistula and imperforate anus were detected during the neonatal period. Abdominal ultrasound identified agenesis of the right kidney and left pyelocaliceal duplication. Radiographic evaluation on the left side showed iliac and femoral hypoplasia, absence of the tibia with a duplicated fibula and seven metatarsals and toes with no identifiable hallux on the foot. Echocardiography demonstrated an atrial septal defect. Based on the literature, we believe that the spectrum of malformations presented by our patient may be related to the vascular disruptive effect of the misoprostol. However, we cannot rule out the possibility that this association might simply be a coincidence.

CONTEXTO: A associação entre dimelia fibular e polidactilia em espelho do pé é considerada uma anormalidade de membro inferior bastante rara. Por outro lado, VACTERL é um acrônimo para uma associação não aleatória de anomalias congênitas cuja etiologia ainda é pouco compreendida. RELATO DO CASO: A paciente era uma menina branca de sete meses de idade, cuja mãe utilizou misoprostol no segundo mês de gravidez para indução de aborto. Na avaliação clínica, ela era pequena para a idade e apresentava hipotonia, narinas antevertidas, filtro longo e boca em carpa. A mão esquerda apresentava um defeito de redução com ausência das extremidades do segundo, terceiro e quinto dedos e camptodactilia do quarto. O membro inferior ipsilateral apresentava um importante encurtamento, especialmente rizomélico. O pé possuía uma configuração em espelho com sete dedos e nenhum hálux identificável. A pelve era hipoplásica. Atresia de esôfago com fístula traqueoesofágica e imperfuração anal foram detectadas durante o período neonatal. O ultrassom abdominal identificou agenesia do rim direito e duplicidade pielocalicial à esquerda. A avaliação radiográfica mostrou, no lado esquerdo, hipoplasia do osso ilíaco e do fêmur, ausência da tíbia com duplicação da fíbula, e presença de sete metatarsos e dedos, sem um hálux identificável, no pé. A ecocardiografia identificou um defeito do septo atrial. Acreditamos, com base na literatura, que o espectro de anormalidades apresentado por nossa paciente possa estar relacionado com o efeito disruptivo vascular do misoprostol. Entretanto, não podemos excluir a possibilidade de que essa associação possa ter sido simplesmente uma coincidência.

Tratamento de sindactilia e polidactilia associada em um mesmo pé / Treatment of sindactylism and polydactylism in the same foot

Os autores descrevem o caso de uma paciente que nasceu com sindactilia e polidactiliaem pé esquerdo com sete dedos, evidenciando prejuízo sociofuncional para a criança. Foitratada com extirpação dos dedos extranumerários (dois) e fusão entre a epífise do primeiroe a diáfise do segundo metatarso.

The authors describe a case of a patient born with sindactylism and polydactylism - sevenfingers left foot. The child had an important social-functional harm. The child had both extrafingers extirpated and subsequent fusion of first metatarsus epiphysis along with secondmetatarsus diaphysis.