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This case report is one of the rare cases of bilateral pheochromocytoma associated with neurofibromatosis type 1. The interest lies in the clinical form in which the diagnosis was revealed. We report the case of a 38-year-old woman admitted for severe hypertension resistant to triple therapy. Clinical examination revealed Cafe-au-lait spots, which are pigmented birthmarks that appear as patches on the skin with a light to dark brown colour. More than six spots are present in an estimated 95% of people diagnosed with neurofibromatosis type 1 (NF1). Abdominal computed tomography (CT) showed bilateral adrenal tumor involvement. The diagnosis of pheochromocytoma was made by measuring urinary Vanillylmandelic acid (VMA). The evolution was favorable after the excision of the tumor, with normalization of blood pressure. In conclusion: resistant hypertension with café au lait spots may indicate pheochromocytoma, especially bilateral, suggesting an underlying genetic condition like NF1, warranting systematic screening.

En este reporte se documenta un caso raro de feocromocitoma bilateral asociado a neurofibromatosis tipo 1. El interés radica en la forma clínica en la que se reveló el diagnóstico. Presentamos el caso de una mujer de 38 años que ingresa por hipertensión arterial severa resistente a triple terapia. El examen clínico reveló manchas café con leche, que son marcas de nacimiento pigmentadas que aparecen como manchas en la piel y que son de un color marrón claro a oscuro. Se estima que el 95% de las personas diagnosticadas con neurofibromatosis tipo 1 (NF1) presentan más de seis manchas. La tomografía computarizada (TC) abdominal mostró afectación tumoral suprarrenal bilateral. El diagnóstico de feocromocitoma se realizó mediante la medición del ácido vanilmandélico (VMA) urinario. La evolución fue favorable tras la extirpación del tumor, con normalización de la presión arterial. En conclusión, la hipertensión resistente con manchas café con leche puede indicar feocromocitoma, especialmente si es bilateral, lo que sugiere una afección genética subyacente como la NF1, que justifica un tamizaje sistemático.

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RESUMEN La displasia fibrosa es una enfermedad ósea benigna y progresiva, de base genética que puede afectar a uno o varios huesos. Su alta incidencia en la edad pediátrica sirvió de base para que anteriormente fuera considerada exclusiva de esta etapa; sin embargo, a la fecha, existen reportes que evidencian su desarrollo y crecimiento posterior en la segunda década de vida. Cuando está asociada a desequilibrios endocrinos y manchas café con leche, forma parte del síndrome de McCune-Albright. El presente reporte de caso muestra las características clínicas y radiológicas de la región bucofacial de un paciente adulto portador del síndrome de McCune-Albright. Las lesiones en los maxilares afectan la morfología y causan disfunción. A nivel dentario, los cambios producidos se traducen en maloclusión y defectos estructurales. En los estudios radiológicos se observaron cambios con densidad mixta y el patrón de vidrio esmerilado.

ABSTRACT Fibrous dysplasia is a benign and progressive bone disease of genetic basis that can affect one or several bones. Its high incidence in the pediatric age served as a basis for it to be previously considered exclusive to this stage; however, there are reports to date that show its development and later growth in the second decade of life. When associated with endocrine imbalances and café-au-lait spots, it is part of the McCune-Albright syndrome. The present case report shows the clinical and radiologic features of the oral-facial region of an adult patient with McCune-Albright syndrome. Lesions in the jaws affect the morphology and cause dysfunction. At the dental level, the changes produced result in malocclusion and structural defects. Radiological studies showed changes with mixed density and ground glass pattern.

RESUMO A displasia fibrosa é uma doença óssea benigna, progressiva e de base genética que pode afetar um ou mais ossos. A sua elevada incidência no grupo etário pediátrico foi a base para que anteriormente fosse considerada exclusiva desta fase; no entanto, existem relatos até à data do seu desenvolvimento e crescimento mais tardio na segunda década de vida. Quando associada a desequilíbrios endócrinos e manchas café-com-leite, faz parte da síndrome de McCune-Albright. Este relato de caso mostra as características clínicas e radiológicas da região bucofacial de um paciente adulto com síndrome de McCune-Albright. As lesões nos maxilares afetam a morfologia e provocam disfunções. A nível dentário, as alterações produzidas resultam em má oclusão e defeitos estruturais. Nos estudos radiológicos, foram observadas alterações com densidade mista e padrão de vidro despolido.

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Aneurysmal coronary artery disease (ACAD) has been reported rarely in patients with neurofibromatosis type 1 (NF1), mostly in adults. We report on a female newborn affected by NF1 with ACAD disclosed during investigation for an abnormal prenatal ultrasound along with a review of the previously reported cases. The proposita had multiple café-au-lait spots and had no cardiac symptoms. Echocardiography, and cardiac computed tomography angiography confirmed aneurysms on the left coronary artery, left anterior descending coronary artery, and of the sinus of Valsalva. Molecular analysis detected the pathogenic variant NM_001042492.3(NF1):c.3943C>T (p.Gln1315*). Literature findings on ACAD in NF1 indicated that this mostly occurs in males, showing predilection for the development of aneurysms at the left anterior descending coronary artery, and manifesting predominantly as acute myocardial infarction, inclusively in teenagers, though it may be also asymptomatic as in our case. This report documents the first case of ACAD in a patient with NF1 diagnosed at birth, emphasizing that its early diagnosis is essential to prevent potential life-threatening events attributable directly to coronary lesions.

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Abstract McCune - Albright syndrome is a genetic disease with cutaneous mosaicism caused by post-zygotic activating mutations in GNAS locus, it has a triad of fibrous bone dysplasia, café-au-lait macules and precocious puberty. We examined a 22-year-old female patient with café au lait spot in right side of the abdomen, with a chessboard - like distribution, extending to right thigh with geographical contours, she has also an ovarian cyst, scoliosis and truncal obesity. Biopsies were taken from the hyperpigmented area and processed for light microscopy and for transmission electron microscopy. Light microscopy showed increased melanin pigment with HE staining. Immunohistochemistry with melanocytic markers (HMB-45 and Melan-A) revealed a normal number of melanocytes. Transmission electron microscopy demonstrated normal epidermal structures, such as desmosomes, cytokeratin filaments and hemidesmosomes. With high magnifications an irregular melanossomal contour was seen, with some indentations in their outline.

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McCune - Albright syndrome is a genetic disease with cutaneous mosaicism caused by post-zygotic activating mutations in GNAS locus, it has a triad of fibrous bone dysplasia, café-au-lait macules and precocious puberty. We examined a 22-year-old female patient with café au lait spot in right side of the abdomen, with a chessboard - like distribution, extending to right thigh with geographical contours, she has also an ovarian cyst, scoliosis and truncal obesity. Biopsies were taken from the hyperpigmented area and processed for light microscopy and for transmission electron microscopy. Light microscopy showed increased melanin pigment with HE staining. Immunohistochemistry with melanocytic markers (HMB-45 and Melan-A) revealed a normal number of melanocytes. Transmission electron microscopy demonstrated normal epidermal structures, such as desmosomes, cytokeratin filaments and hemidesmosomes. With high magnifications an irregular melanossomal contour was seen, with some indentations in their outline.

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INTRODUCCIÓN: La neurofibromatosis tipo 1(NF1) descrita por primera vez por von Recklinghausen en 1884, es una enfermedad de transmisión genética autosómica dominante, causada por un espectro de mutaciones en el gen NF-1, de evolución impredecible, que afecta múltiples órganos y sistemas, como la piel y el sistema nervioso, afectando también el desarrollo infantil y al estado neurocognitivo. Representa para el médico la toma de decisiones de manejo a menudo complejas, que requieren un enfoque multidisciplinario. CASO CLÍNICO: Paciente femenino de 9 años de edad, con antecedente de neurofibromatosis tipo 1. Presenta masa en región cervical anterior, que ocupa además el hemitórax izquierdo, comprimiendo el mediastino anterior, la tráquea del lado izquierdo, el corazón, el pulmón izquierdo; la masa produce sintomatología: disnea, disfagia y dolor, por lo que se programa intervención quirúrgica para exéresis del tumor. Se realizó cervico-esternotomía- toracotomía izquierda, se extirpó masa de 12 x 7 cm, ubicada a nivel de cayado aórtico, íntimamente adherida a la columna vertebral cervico-torácica. EVOLUCIÓN: Durante el acto quirúrgico la paciente tuvo un sangrado cuantioso, proveniente de arteria colateral de carótida común izquierda, por lo que se decidió empaquetar para resolución posterior, 24 horas después se desempaquetó, logrando control del sangrado tras el procedimiento. Los resultados de anatomía patología establecieron que la masa fue un neurofibroma. El seguimiento posterior determinó mejoría de la sintomatología, sin complicaciones quirúrgicas tardías. CONCLUSIÓN: La Neurofibromatosis es una patología congénita, poco frecuente y de complejo manejo. Aunque no existe tratamiento definitivo para la neurofibromatosis tipo 1, se puede realizar un manejo integral para mejorar la calidad de vida del paciente. Los tumores pueden extirparse mediante cirugía, aunque a menudo vuelven a crecer.(au)

BACKGROUND: Neurofibromatosis type 1, first described by von Recklinghausen in 1884, is an autosomal dominant genetically transmitted disease, caused by a spectrum of mutations in the NF-1 gen, with unpredictable evolution, that affects multiple organs and systems, such as the skin and the nervous system, also affecting child development and neurocognitive functions. It often requires complex management decisions from the physician that involve a multidisciplinary approach. CASE REPORTS: 9 year old female patient with a history of type 1 neurofibromatosis. She presented with a mass located in the anterior cervical region, occupying also the left hemithorax, compressing the anterior mediastinum, the trachea from its left side, the heart, and the left lung; the mass produced symptoms: dyspnea, dysphagia and pain, so surgical excision of the mass was scheduled. A left cervical-sternotomy-thoracotomy was performed, a 12 x 7cm mass, located at aortic arch level, closely adhered to the cervical-thoracic spine, was excised. EVOLUTION: During the surgical procedure, the patient had profuse bleeding, coming form the left common carotid colateral artery, so abdominal packing was performed, for later resolution. 24 hours later, bleeding control was achieved after the surgical re-intervention. The pathology lab results established that the mass was in fact a neurofibroma. Subsequent follow-up determined symptoms improvement, without late surgical complications. CONCLUSIONS: Neurofibromatosis is a congenital infrequent, disease, with a complex treatment. Although there is no definitive treatment for type 1 neurofibromatosis, comprehensive management can be achieved to improve the patient's quality of life. Tumors can be surgically removed, although they often grow back.(au)

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RESUMEN INTRODUCCIÓN: La neurofibromatosis (enfermedad de von Recklinghausen) es una enfermedad autosómica dominante que presenta principalmente manifestaciones cutáneas y neurológicas. El objetivo es describir actualmente si existe o no relación entre las mutaciones encontradas en los pacientes con neurofibromatosis tipo 1 y las características clínicas que presentan. MÉTODOS: Se realizó un artículo de revisión narrativa para evaluar la relación con el genotipo y fenotipo de los pacientes con neurofibromatosis tipo 1. Se revisaron las bases de datos PubMed, Embase y Lilacs. Se utilizaron los siguientes términos Mesh: Neurofibromatosis, neurofibromatosis tipo 1, genes, genotipo, fenotipo, mutaciones, secuenciación de exoma. Los estudios identificados fueron revisados y analizados. Se presentan los datos de manera cualitativa. RESULTADOS: De 425 artículos, 62 contenían la información necesaria para hacer el análisis. A pesar de que algunos estudios han presentado evidencia de asociación en relación a las mutaciones encontradas y la clínica, realmente no existe una correlación genotipo-fenotipo comprobada en neurofibromatosis tipo 1. Esto sugiere que para los fenotipos discordantes con genotipo similar existen otros factores que deben considerarse tales como la epigenética, alteraciones genéticas o incluso factores ambientales. CONCLUSIONES: Es necesario realizar estudios con cohortes más grande de pacientes para seguir estudiando si existe una relación directa o no.

SUMMARY INTRODUCTION: Neurofibromatosis (von Recklinghausen disease) is an autosomal dominant disease that mainly presents cutaneous and neurological manifestations. The objective is to describe if there is a relationship between the mutations found in patients with neurofibromatosis type 1 and the clinical characteristics they present. METHODS: A narrative review of the literature was carried out in relation to the genotype and phenotype of patients with Neurofibromatosis type 1 using PubMed, Embase, and Lilacs. The following Mesh terms were used: Neurofibromatosis, neurofibromatosis type 1, genes, genotype, phenotype, mutations, exome sequencing. The identified studies were reviewed and analyzed. Data are presented qualitatively RESULTS: Of 425 articles, 62 contained the information necessary to make the analysis. Although some studies have presented evidence of association in relation to the mutations found and the clinical one, there is still no proven genotype-phenotype correlation in neurofibromatosis type 1. This suggests that, for discordant phenotypes with a similar genotype, there are other factors that must be considered such as epigenetics, genetic alterations or even environmental factors. CONCLUSIONS: It is necessary to perform studies with larger cohort of patients to continue studying whether there is a direct relationship or not.

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Von Recklinghausen disease or neurofibromatosis Type I (NF1) is an autosomal dominant disease with a wide spectrum of clinical manifestations. Neurofibromas are the characteristic lesions. This disorder is associated with important anaesthetic considerations, mainly when neurofibromas occur in the oropharynx and larynx, leading to difficult laryngoscopy and tracheal intubation. We describe the anaesthetic management of a patient with NF1 under general anaesthesia for facial neurofibroma excision. We performed a brief review of the literature with the aim of optimizing the anaesthetic management and reducing the number of complications associated with the systemic manifestations of this syndrome.

La enfermedad de Von Recklinghausen (EVR) o neurofibromatosis tipo I (NF1) es una enfermedad con herencia autosómica dominante con un amplio espectro de manifestaciones clínicas. Los neurofibromas son las lesiones características. Este trastorno se asocia con importantes consideraciones anestésicas, principalmente cuando los neurofibromas aparecen en la orofaringe y laringe, produciendo dificultades en la laringoscopia y en la intubación endotraqueal. Describimos el manejo anestésico de un paciente con NF1 bajo anestesia general para extirpación de neurofibromas faciales. Hemos realizado un breve repaso de la literatura existente para optimizar el manejo anestésico y reducir el número de complicaciones asociadas con las manifestaciones sistémicas de este síndrome.

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INTRODUCTION: Acute lymphoblastic leukemia (ALL) has been associated with an excess of minor phenotypic variants (MPV), including common variants and minor anomalies, indicative of an altered phenogenesis. The objective of the study was to determine the association between MPV and ALL. PATIENTS AND METHODS: In a hospital based case-control study, we studied 120 children with ALL (including standard and high risk) and 120 healthy children as a control group, matched for age and sex, seen in the Hospital Civil de Guadalajara Dr. Juan I. Menchaca (Guadalajara, Mexico). In both groups, 28 anthropometric measurements were made, as well as a systematic search for 405 MPV, through a physical examination. Adjusted odds ratio was estimated (aOR) with its intervening variables by logistic regression. The confidence interval was 95% (95%CI). RESULTS: Anthropometric signs associated with ALL were: long upper segment (aOR= 2.19, 95%CI: 1.01-4.76), broad jaw (aOR= 2.62, 95%CI: 1.29-5.30), narrow ears (aOR= 6.22, 95%CI: 2.60-14.85), and increase in internipple distance (aOR= 2.53, 95%CI: 1.07-5.98). The hypoplasia mesofacial, broad forehead, small nose, short columella, narrow ears, telethelia, Sydney crease (SC), Greek type feet and café-au-lait spots (CALS), had a 3 to 17 times higher frequency in children with ALL. By number, an association was found from ≥4 MPV (aOR= 2.14, 95%CI: 1.25-3.66, P=.004). CONCLUSIONS: From ≥4 MPV, an association was found with ALL, suggesting prenatal factors in phenogenesis and leukemogenesis. CALS and SC were confirmed as MPV in children with ALL.

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