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1.
J. oral res. (Impresa) ; 12(1): 119-126, abr. 4, 2023. ilus
Artigo em Inglês | LILACS | ID: biblio-1451421

RESUMO

Introduction: The present report describes the case of a 12-year-old patient with 17-year follow-up who was previously diagnosed with Papillon-Lefèvre Syndrome (PLS), which is a rare autosomal recessive irregularity in the cathepsin C gene (CTSC) characterized by palmoplantar hyperkeratosis and premature loss of primary and permanent teeth. Case Report: A specific mutation in the c.203 T > G gene inducing loss of function leading to PLS was detected, as was a mutation in the HLA-DRB1*11 allele, which is associated with this syndrome. There is no consanguinity of the parents, and the siblings are entirely healthy. Early identification of the main characteristics of this syndrome is imperative. Accurate diagnosis by genetic analysis allows differential diagnoses and timely comprehensive dental treatment. Conclusions: Additionally, it allows consultation with a dermatologist to maintain or improve the quality of life of patients with this condition due to progressive worsening and severity of the main physical manifestations. Keywords: Papillon-Lefevre Disease; Keratoderma, Palmo-plantar; Cathepsin C; Periodontitis; Skin Diseases, Genetic; Case reports


Introducción: El presente reporte describe el caso de un paciente de 12 años de edad con 17 años de seguimiento a quien previamente se le diagnosticó Síndrome de Papillon-Lefèvre (PLS), el cual es una rara irregularidad autosómica recesiva en el gen de la catepsina C (CTSC) caracterizada por hiperqueratosis palmoplantar y pérdida prematura de dientes primarios y permanentes. Reporte de Caso: Se detectó una mutación específica en el gen c.203 T > G que induce pérdida de función que conduce a PLS, así como una mutación en el alelo HLA-DRB1*11, que se asocia a este síndrome. No presenta consanguinidad de los padres, padres y hermanos totalmente sanos. La identificación temprana de las principales características de este síndrome es imperativa. El diagnóstico certero por análisis genético permite diagnósticos diferenciales y tratamientos odontológicos integrales oportunos. Conclusiones: Adicionalmente, permite la consulta con un dermatólogo para mantener o mejorar la calidad de vida de los pacientes con esta condición debido al progresivo empeoramiento y severidad de las principales manifestaciones físicas.


Assuntos
Humanos , Masculino , Criança , Doença de Papillon-Lefevre/diagnóstico por imagem , Ceratodermia Palmar e Plantar , Catepsina C/genética , Doença de Papillon-Lefevre/terapia
2.
Rev. medica electron ; 43(6): 1728-1737, dic. 2021.
Artigo em Espanhol | LILACS, CUMED | ID: biblio-1409674

RESUMO

RESUMEN La hiperqueratosis es un trastorno caracterizado por el engrosamiento de la capa externa de la piel, que está compuesta de queratina, una fuerte proteína protectora. Puede ser causada por fricción, conllevando la aparición de callosidades, inflamación crónica, eccema o trastornos genéticos, como la ictiosis ligada al cromosoma X. Se presentó el caso de un paciente de 47 años, que acudió al Servicio de Ortopedia por lesión escamosa a nivel de ambas regiones plantares con dificultad para la marcha. El tratamiento quirúrgico fue el empleado en este paciente para la obtención de la biopsia exerética. La evolución fue favorable en el postoperatorio mediato e inmediato, y el paciente se incorporó de forma rápida a su vida normal. Con este caso se identificaron las características clínicas de la hiperqueratosis plantar, así como el uso de la biopsia exerética como estándar de oro para el diagnóstico positivo en los tumores periféricos. Un diagnóstico adecuado por el médico inicial, la interrelación del Servicio de Ortopedia con la consulta de tumores periféricos, y el tratamiento quirúrgico seleccionado, constituyen factores determinantes en la evolución favorable de los pacientes con este diagnóstico (AU).


ABSTRACT Hyperkeratosis is a disorder characterized by thickening of the outer layer of the skin, which is composed of keratin, a strong protective protein. It can be caused by friction, leading to callosities, chronic inflammation, eczema or genetic disorders such as X chromosome-linked ichthyosis. We presented the case of a patient, aged 47 years, who attended the Orthopedic Service for scaly lesion at the level of both plantar regions with difficulties to walk. Surgical treatment was used in this patient to obtain an exeretic biopsy. The evolution was favorable in both the mediate and immediate postoperative period, and the patient quickly returned to his normal life. This case identified the clinical characteristics of plantar hyperkeratosis and the use of exeretic biopsy as a gold standard for positive diagnosis in the peripheral tumors. An adequate diagnosis by the initial physician, the interrelation of the orthopedic service with the consultation of peripheral tumors, and the chosen surgical treatment are determining factors in the favorable evolution of patients with this diagnosis (AU).


Assuntos
Humanos , Feminino , Neoplasias do Sistema Nervoso Periférico/diagnóstico , Ceratodermia Palmar e Plantar/diagnóstico , Ortopedia/métodos , Dermatopatias , Biópsia/métodos , Ceratodermia Palmar e Plantar/cirurgia , Ceratodermia Palmar e Plantar/genética , Ceratodermia Palmar e Plantar/epidemiologia
3.
Dermatol. argent ; 27(3): 123-125, jul.- sep. 2021. il, graf
Artigo em Espanhol | LILACS, BINACIS | ID: biblio-1373236

RESUMO

La acroqueratoelastoidosis de Costa es una genodermatosisde herencia autosónimica dominante con penetrancia incompleta. Es un trastorno de las fibras elásticas exclusivamente cutáneo y a nivel acral. Se caracteriza por la presencia de pápulas eritematosas, amarillentas o del color de la piel normal en la cara marginal de los dedos de las manos o de los pies, que se agrupan, forman placas con aspecto de empedrado y se extienden de forma simétrica al dorso, las palmas y las plantas. El hallazgo histológico patognomónico es la elastorrexis. Se presenta el caso de un niño de 7 años con una acroqueratoelastoidosis que comprometía las manos y los pies, asociada a prurito.


Acrokeratoelastoidosis of Costa is a genodermatosis of autosomal dominant inheritance with incomplete penetrance.It is a cutaneous disorder of the elastic fibers at the acral level.The clinical feature is the presence of erythematous, yellowish or normal skin-colored papules on the marginal aspect of the fingers and/or toes, which agminate to form cobblestone-like plaques and extend symmetrically to the dorsum and palms and soles. The pathognomonic histologic finding is elastorrhexis. We present a 7-year-old boy with acrokeratoelastoidosis involving hands and feet, associated with pruritus.


Assuntos
Humanos , Masculino , Criança , Dermatopatias Genéticas/diagnóstico , Dermatopatias Genéticas/patologia , Ceratodermia Palmar e Plantar , Tecido Elástico/anormalidades
4.
An. bras. dermatol ; 95(4): 484-489, July-Aug. 2020. tab, graf
Artigo em Inglês | LILACS, Coleciona SUS | ID: biblio-1130920

RESUMO

Abstract Annular epidermolytic ichthyosis is a rare subtype of epidermolytic ichthyosis that is characterized by erythematous, polycyclic, and migratory scaly plaques accompanied by palmoplantar keratoderma. This report presents the case of an 8-year-old girl who developed migratory, erythematous, scaly plaques associated with palmoplantar keratoderma. The initial hypothesis was erythrokeratodermia variabilis et progressiva; however, the finding of epidermolytic hyperkeratosis in histopathological examination led to the diagnosis of annular epidermolytic ichthyosis.


Assuntos
Humanos , Feminino , Criança , Hiperceratose Epidermolítica , Pele , Ceratodermia Palmar e Plantar , Exantema
5.
Med. U.P.B ; 38(2): 182-186, 17 de octubre de 2019. ilus, tab
Artigo em Espanhol | LILACS, COLNAL | ID: biblio-1023414

RESUMO

La acroqueratoelastoidosis de Costa es una rara genodermatosis autosómica dominante con expresividad variable, que se caracteriza por la presencia de múltiples pápulas hiperqueratósicas en la zona marginal de las manos, los pies o ambas. Debuta predominantemente en la niñez y vida adulta temprana, es de curso crónico y generalmente asintomática. Su diagnóstico diferencial del resto de las acroqueratodermias es un desafío para el clínico, sin embargo, el hallazgo histológico de elastorrexis nos permite categorizarla. Presentamos un caso esporádico de una paciente joven, con características clínicas e histopatológicas típicas de la enfermedad.


The acrokeratoelastoidosis of Costa is a rare genodermatosis of autosomal dominant inheritance with variable expressivity. It is characterized by the presence of multiple hyperkeratotic papules in the marginal zone of the hands and / or feet, which appears predominantly in childhood and early adulthood. It is generally asymptomatic and chronic. Its differential diagnosis from the rest of acrokeratodermias is a challenge for the physician; however, the histological finding of elastorhexis allows us to categorize it. We present a sporadic case of a young female patient, with clinical and histopathological characteristics typical of the disease.


A acroqueratoelastoidose de Costa é uma rara genodermatose autossômica dominante com expressividade variável, que se caracteriza pela presença de múltiplos pápulas hiperqueratósicas na zona marginal das mãos, dos pés ou ambas. Debuta predominantemente na infância e vida adulta precoce, é de curso crónico e geralmente assintomática. Seu diagnóstico diferencial do resto das acroqueratodermias é um desafio para o clínico, mas, a descoberta histológica de elastorrexis nos permite categorizá-la. Apresentamos um caso esporádico de uma paciente jovem, com características clínicas e histopatológicas típicas da doença.


Assuntos
Humanos , Doenças Genéticas Inatas , Ceratodermia Palmar e Plantar , Queratinas
6.
Rev. medica electron ; 41(4): 1035-1041, jul.-ago. 2019.
Artigo em Espanhol | LILACS, CUMED | ID: biblio-1094108

RESUMO

RESUMEN Las displasias ectodérmicas constituyen alteraciones de los derivados embriológicos del ectodermo. Paciente adulta, con hipoparatiroidismo, llamó la atención por su fenotipo y fue remitida de la consulta de Neurología a la consulta Genética. Se diagnosticó una displasia ectodérmica hipohidrótica, de origen genético con herencia autosómica dominante, poco común para esta entidad. Se presenta este caso con el objetivo de describir las manifestaciones clínicas de esta alteración genética, las cuales nunca fueron objeto de interés médico resultando inadvertidas para su estudio y diagnóstico. Esta alteración se asocia a una condición patológica como el hipoparatiroidismo, en la literatura revisada no se encontraron reportes de la misma. La evaluación clínica de la paciente permitió hacer el diagnóstico y explicar muchos de los problemas para los cuales no existían respuestas, así como ofrecer un asesoramiento genético adecuado para ella y para sus familiares con riesgo de padecer una condición genética similar.


ABSTRACT Ectodermic dysplasias are alterations of the ectoderm embryologic derivatives. This is a case of an adult female patient with hypoparathyroidism, drawing attention due to her phenotype; she was remitted by the consultation of Neurology to the Genetic one. She was diagnosed a hypohidrotic ectodermal dysplasia, of genetic origin with autosomal dominant inheritance, what is very rare for this entity. The case is presented with the aim of describing the clinical manifestation of this genetic alteration that never drew medical interest and nobody diagnosed or studied. It is associated to a pathologic condition like hypothyroidism and was not reported in medical literature before. The clinical evaluation of the patient allowed arriving to the diagnostic and explaining many problems that were unexplained, and also offering the adequate genetic advice to her and her relatives likewise at risk of suffering a similar genetic condition.


Assuntos
Humanos , Feminino , Adulto , Displasia Ectodérmica/diagnóstico , Displasia Ectodérmica/etiologia , Displasia Ectodérmica/genética , Displasia Ectodérmica/tratamento farmacológico , Displasia Ectodérmica/epidemiologia , Aconselhamento Genético , Hipoparatireoidismo/diagnóstico , Hipoparatireoidismo/etiologia , Qualidade de Vida , Ceratodermia Palmar e Plantar/diagnóstico , Ceratodermia Palmar e Plantar/etiologia
7.
Biomédica (Bogotá) ; 39(2): 247-251, ene.-jun. 2019. graf
Artigo em Espanhol | LILACS | ID: biblio-1011437

RESUMO

Resumen La queratodermia acuagénica es una entidad benigna, caracterizada por producir pápulas blanquecinas o traslúcidas pocos segundos después del contacto con el agua. Se presenta el caso de una paciente de 16 años de edad con aparición de múltiples pápulas confluentes y asintomáticas en ambas palmas al contacto con el agua, que desaparecían luego del secado. En el estudio de histopatología se observó dilatación de los conductos ecrinos y cambios en el estrato córneo. Esta rara condición de etiología desconocida se ha relacionado con disfunción neuronal, alteraciones de las glándulas ecrinas y, más recientemente, con alteraciones en las acuaporinas. Se puede diagnosticar con una prueba semiológica sencilla llamada 'la mano en el balde'; la sospecha clínica es fundamental para hacer el diagnóstico, ya que los hallazgos histopatológicos pueden ser sutiles e inespecíficos. El tratamiento tópico incluye mecanismos de barrera y la toxina botulínica.


Abstract Aquagenic keratoderma is a benign entity that is characterized by producing whitish or translucent papules a few seconds after contact with water. We present the case of a 16-year-old patient with multiple asymptomatic confluent papules that appeared on both hand palms after contact with water and which disappeared after drying. The histopathological findings in a skin biopsy after water exposure showed changes in the superficial layers of the stratum corneum and dilatation of sweat gland ducts. This entity of unknown etiology has been related to neuronal and eccrine gland dysfunction. Recently it has been associated with alterations of aquaporins. The "hand-in-the-bucket" sign is a simple useful clinical tool for diagnosis, as histopathological findings may be nonspecific. Topical treatments include barrier mechanisms and botulinum toxin.


Assuntos
Adolescente , Feminino , Humanos , Água/efeitos adversos , Ceratodermia Palmar e Plantar/etiologia , Dermatoses da Mão/etiologia , Biópsia , Ceratodermia Palmar e Plantar/diagnóstico , Ceratodermia Palmar e Plantar/patologia , Diagnóstico Diferencial , Dermatoses da Mão/patologia
8.
An. bras. dermatol ; 93(5): 723-725, Sept.-Oct. 2018. graf
Artigo em Inglês | LILACS | ID: biblio-949938

RESUMO

Abstract: Vohwinkel syndrome belongs to the group of hereditary palmoplantar keratoderma, having an autosomal dominant inheritance. In this report, the authors present a case of a four-year-old boy with diffuse scaling over his entire body and transgredient palmoplantar hyperkeratosis with some fissured areas. Family evaluation revealed that his mother and other family members were affected. Based on his clinical findings and on family history, the diagnosis of the ichthyotic Vohwinkel syndrome subtype, characterized by generalized ichthyosis and palmoplantar hyperkeratosis, was established.


Assuntos
Humanos , Masculino , Pré-Escolar , Anormalidades Múltiplas/genética , Deformidades Congênitas da Mão/genética , Ceratodermia Palmar e Plantar/genética , Perda Auditiva Neurossensorial/genética , Ictiose/genética , Linhagem
10.
An. bras. dermatol ; 92(3): 417-418, May-June 2017. graf
Artigo em Inglês | LILACS | ID: biblio-886956

RESUMO

Abstract Ectodermal dysplasias are conditions that present primary defects in two or more tissues of ectodermal origin and can be classified as hypohidrotic and hidrotic. Hidrotic ectodermal dysplasia or Clouston syndrome is an autosomal dominant genodermatosis and appears as a triad of clinical findings: palmoplantar keratoderma, nail dystrophy, and hypotrichosis. The hair is sparse and brittle. The nails become thickened and dystrophic, which is an essential characteristic of the syndrome. The diagnosis is made based on clinical findings. This study reports a case of a patient who began with changes in hair, nails and palmoplantar keratoderma in early childhood.


Assuntos
Humanos , Feminino , Adolescente , Displasia Ectodérmica/diagnóstico , Ceratodermia Palmar e Plantar/diagnóstico , Doenças da Unha/diagnóstico , Síndrome
11.
An. bras. dermatol ; 92(5,supl.1): 154-158, 2017. tab, graf
Artigo em Inglês | LILACS | ID: biblio-887085

RESUMO

Abstract Inherited Palmoplantar Keratodermas are rare disorders of genodermatosis that are conventionally regarded as autosomal dominant in inheritance with extensive clinical and genetic heterogeneity. This is the first report of a unique autosomal recessive Inherited Palmoplantar keratoderma -sensorineural hearing loss syndrome which has not been reported before in 3 siblings of a large consanguineous family. The patients presented unique clinical features that were different from other known Inherited Palmoplantar Keratodermas -hearing loss syndromes. Mutations in GJB2 or GJB6 and the mitochondrial A7445G mutation, known to be the major causes of diverse Inherited Palmoplantar Keratodermas -hearing loss syndromes were not detected by Sanger sequencing. Moreover, the pathogenic mutation could not be identified using whole exome sequencing. Other known Inherited Palmoplantar keratoderma syndromes were excluded based on both clinical criteria and genetic analysis.


Assuntos
Humanos , Masculino , Criança , Adolescente , Ceratodermia Palmar e Plantar/genética , Ceratodermia Palmar e Plantar/patologia , Perda Auditiva Neurossensorial/genética , Perda Auditiva Neurossensorial/patologia , Mutação/genética , Síndrome , Biópsia , Irmãos , Sequenciamento do Exoma
12.
Rev. chil. dermatol ; 33(3): 93-96, 2017. tab, ilus
Artigo em Espanhol | LILACS | ID: biblio-965059

RESUMO

La acropaquia es un trastorno que puede presentarse en forma aislada o formar parte del síndrome de osteoartropatía hipertrófica, entidad caracterizada por periostosis, dolor articular y acropaquia. Cuando este síndrome es causado por una mutación genética específica, se denomina osteoartropatía hipertrófica primaria. Este raro desorden hereditario se asocia, además, a alteraciones dermatológicas típicas, como hiperseborrea, acné, engrosamiento de pliegues faciales, entre otras. Una asociación rara vez descrita es la queratodermia palmoplantar. Se presenta el caso de una mujer de 46 años con osteoartropatía hipertrófica primaria asociada a queratodermia palmoplantar que asistió a la unidad de dermatología del Hospital Gustavo Fricke, Viña del Mar, Chile.


Clubbing is a disorder that can be an isolated finding or be part of the hypertrophic osteoarthropathy syndrome, an entity characterized by periostosis, joint pain and clubbing. When this syndrome is caused by a specific genetic mutation, it is called primary hypertrophic osteoarthropathy. This rare hereditary disorder is also associated with typical dermatological findings, such as hyperseborrhea, acne and facial feature coarsening. An association rarely described is palmoplantar keratoderma. We present the case of a 46-year-old woman with primary hypertrophic osteoarthropathy and palmoplantar keratoderma who came to the dermatology unit of Gustavo Fricke Hospital, Viña del Mar, Chile.


Assuntos
Humanos , Feminino , Pessoa de Meia-Idade , Osteoartropatia Hipertrófica Primária/diagnóstico , Osteoartropatia Hipertrófica Primária/etiologia , Ceratodermia Palmar e Plantar/complicações
13.
Rev. Nac. (Itauguá) ; 9(1): 115-118, jun 2017.
Artigo em Espanhol | LILACS, BDNPAR | ID: biblio-884683

RESUMO

Se presenta caso de paciente de 13 años, de sexo femenino, con historia de 2 meses de evolución de lesiones aspecto crateriforme en planta de pie izquierdo, acompañado de bromhidrosis, dolor y ardor e impotencia funcional. El cultivo reveló la presencia de Staphylococcus aureus meticilino sensible. Las lesiones mejoraron con tratamiento antibiótico tópico con mupirocina y queratolíticos, quedando como diagnóstico una queratólisis punctata.


A 13-year-old female patient case is presented with a 2 months history of lesions on the left foot, accompanied by bromhydrosis, pain, burning, and functional impotence. Tissue culture revealed the presence of sensitive methicillin Staphylococcus aureus. The lesions improved with topical antibiotic treatment with mupirocin and keratolytics, final diagnosis was punctate keratolysis.


Assuntos
Humanos , Feminino , Adolescente , Infecções Estafilocócicas/diagnóstico , Staphylococcus aureus/isolamento & purificação , Ceratodermia Palmar e Plantar/diagnóstico , Ceratodermia Palmar e Plantar/microbiologia , Infecções Estafilocócicas/tratamento farmacológico , Mupirocina/administração & dosagem , Ceratodermia Palmar e Plantar/tratamento farmacológico , Ceratolíticos/uso terapêutico , Antibacterianos/uso terapêutico
14.
Rev. chil. dermatol ; 32(1): 40-42, 2016. ilus
Artigo em Espanhol | LILACS | ID: biblio-916397

RESUMO

La Queratodermia Aquagénica (QA) es una enfermedad adquirida poco frecuente de tipo transitoria que se localiza de preferencia en palmas de manos y raramente en la planta de los pies. Mujer de 20 años, portadora de Fibrosis Quística (FQ) que consulta por lesiones en palmas de manos de aspecto blanquecino macerado que aparecen al tener contacto con el agua y que desaparecen en pocos minutos del secado. Se realiza estudio histológico cuyo resultado confirmo el diagnóstico de Queratodermia Aquagénica. Esta enfermedad se relaciona con Fibrosis Quística, Raynaud, entre otros. Se manifiesta al humedecer las manos y pies. Presentamos el caso por ser inusual y la importancia de sus asociaciones con otras enfermedades.


Aquagenic Keratoderma is a rare acquired disease of a transitional type, which is preferably located in the palms of the hands and very rarely in the soles of the feet. The case of a twenty-year-old woman with Cystic Fibrosis, who consulted for lesions in her palms with a whitish macerated aspect that appeared with the contact of water and disappeared a few minutes after drying. Histological studies have been done confirming the Aquagenic Keratoderma diagnostic. This disease is related to Cystc Fibrosis and Raynaud, among others. It manifests when the palms of the hands and the soles of the feet get wet. We present this case because it is unusual and because of the important association with other diseases.


Assuntos
Humanos , Feminino , Adulto , Água/efeitos adversos , Ceratodermia Palmar e Plantar/patologia , Fibrose Cística/patologia , Iontoforese , Ceratodermia Palmar e Plantar/diagnóstico , Ceratodermia Palmar e Plantar/etiologia , Dermoscopia , Etanol
15.
An. bras. dermatol ; 90(6): 897-899, Nov.-Dec. 2015. graf
Artigo em Inglês | LILACS | ID: lil-769510

RESUMO

Abstract: Clouston syndrome is a rare genodermatosis that affects skin and annexes. It is a form of ectodermal dysplasia characterized by generalized hypotrichosis, palmoplantar hyperkeratosis and nail dystrophy. This paper reports a 25-year follow-up of a patient with Clouston syndrome, from childhood to adulthood, monitoring diagnosis and clinical course of the disease.


Assuntos
Adulto , Feminino , Humanos , Displasia Ectodérmica/patologia , Alopecia/patologia , Displasia Ectodérmica/terapia , Seguimentos , Ceratodermia Palmar e Plantar/patologia , Doenças da Unha/patologia
16.
An. bras. dermatol ; 90(3,supl.1): 216-219, May-June 2015. ilus
Artigo em Inglês | LILACS | ID: lil-755736

RESUMO

Abstract

Due to diverse clinical and histopathological presentations, diagnosis of secondary syphilis can occasionally prove challenging. Variable clinical presentations of secondary syphilis in HIV disease may result in an incorrect diagnosis and an inappropriate treatment regimen. Similarly, the histology of secondary syphilitic lesions may show considerable variation, depending on the clinical morphology of the eruption. We report a case of secondary syphilis in an HIV infected patient with cutaneous palmoplantar lesions simulating palmoplantar psoriasis.

.


Assuntos
Adulto , Humanos , Masculino , Infecções por HIV/patologia , Psoríase/patologia , Sífilis Cutânea/patologia , Antibacterianos/uso terapêutico , Biópsia , Coinfecção/tratamento farmacológico , Coinfecção/patologia , Diagnóstico Diferencial , Ceratodermia Palmar e Plantar/tratamento farmacológico , Ceratodermia Palmar e Plantar/patologia , Penicilina G Benzatina/uso terapêutico , Sífilis Cutânea/tratamento farmacológico , Resultado do Tratamento
17.
An. bras. dermatol ; 90(3,supl.1): 212-215, May-June 2015. ilus
Artigo em Inglês | LILACS | ID: lil-755786

RESUMO

Abstract

HIV/syphilis co-infection is common because both conditions affect similar risk groups. HIV interferes with the natural history of syphilis, which often has atypical clinical features and nervous system involvement in the early stage of disease. We report the case of an HIV-positive patient with secondary syphilis, scaling palmoplantar keratoderma, scrotal eczema, balanitis and urethritis mimicking Reiter’s syndrome. Immunohistochemistry using polyclonal antibodies against Treponema pallidum revealed the presence of spirochetes, associated with the paretic form of parenchymal neurosyphilis. The patient was given crystalline penicillin, with complete resolution of dermatological and neurological symptoms, and no sequelae.

.


Assuntos
Adulto , Humanos , Masculino , Artrite Reativa/patologia , Coinfecção/patologia , Infecções por HIV/patologia , Neurossífilis/patologia , Antibacterianos/uso terapêutico , Biópsia , Diagnóstico Diferencial , Imuno-Histoquímica , Ceratodermia Palmar e Plantar/tratamento farmacológico , Ceratodermia Palmar e Plantar/patologia , Neurossífilis/tratamento farmacológico , Penicilina G/uso terapêutico , Resultado do Tratamento
18.
São Paulo; s.n; 2015. [160] p. map, ilus, tab, graf.
Tese em Português | LILACS | ID: biblio-871515

RESUMO

Nos mamíferos, a determinação sexual é governada pelo equilíbrio entre duas vias de sinalização paralelas e antagônicas: a via masculina SOX9/FGF9 e a via feminina RSPO1/beta-catenina/WNT4. A R-spondina 1 é uma importante reguladora do processo de diferenciação ovariana e atua modulando a via de sinalização Wnt canônica (Wnt/beta-catenina). Em humanos, mutações em RSPO1 causam uma rara síndrome genética autossômica recessiva caracterizada por Distúrbios do Desenvolvimento Sexual (DDS) 46,XX Testicular ou Ovotesticular, hiperceratose palmoplantar (HPP) e predisposição para o desenvolvimento de carcinoma de células escamosas (MIM 610644). Identificamos um paciente brasileiro, proveniente de uma grande família consanguínea, que apresentava a associação de HPP e DDS 46,XX Testicular SRY negativo. A avaliação da região codificadora do gene RSPO1 identificou a nova variante alélica c.305G>A (p.Cys102Tyr). O estudo de segregação realizado em 67 familiares demonstrou que a variante c.305G>A segrega em perfeita concordância com o fenótipo de HPP, exibindo um padrão de herança autossômico recessivo. Na família foram identificados 10 indivíduos afetados pelo fenótipo de HPP. As avaliações clínica e hormonal e os estudos molecular e citogenético nesses indivíduos resultou na caracterização de: (a) quatro indivíduos do sexo masculino 46,XX e/ou SRY negativo, com ambiguidade genital e perfil hormonal alterado; (b) cinco indivíduos do sexo masculino 46,XY e/ou SRY positivo, sem ambiguidade genital, com perfil hormonal normal e (c) uma mulher 46,XX, fértil. Experimentos de transfecção transitória in vitro demostraram que a proteína mutante tem menor capacidade de transativação do plasmídio reporter da via Wnt. As simulações de dinâmica molecular constataram que a troca p.Cys102Tyr aumenta a flexibilidade do backbone da R-spondina-1, diminuindo a energia de ligação da proteína ao complexo de receptores, LGR5 e RNF43. Em conjunto, nossos achados demonstram que a...


In mammals, sex determination is governed by the balance between two parallel and antagonic signaling pathways: the male SOX9/FGF9 and the female, RSPO1/beta-catenin/WNT4 pathways. R-spondin 1 regulates the ovarian differentiation process by its modulating action through the canonic Wnt pathway (Wnt/beta-catenin). In humans, patogenic mutations in RSPO1 cause a rare, autosomic recessive syndrome characterized by 46,XX Testicular or Ovotesticular disorders of sexual development (DSD), palmoplantar keratosis (PPK) and predisposition to squamous cell carcinoma (MIM 610644). We identified and studied a SRY-negative 46,XX DSD patient with PPK from a large, consaguineous, brazillian family. Through a "candidate gene" approach we identified in the proband a new allelic variant in the coding region of RSPO1, c.305G > A. This variant presented full concordance with the PPK phenotype by segregation analyses in 10 of 67 members of this family. Clinical, hormonal, cytogenetic and molecular genetic studies characterized three patterns in individuals with this variant: (a) four 46,XX and/or SRY-negative males with ambiguous genitalia and altered hormonal profile; (b) five 46,XY and/or SRY-positive males without ambiguous genitalia with normal hormonal profile; (c) one 46,XX fertile woman. In vitro experiments demonstrated that transient transfection of the mutant protein resulted in lower transactivation of the Wnt pathway-reporter plasmid. Moreover, molecular dinamic studies showed that p.Cys102Tyr increased the R-spondin-1 backbone flexibility, thus decreasing the interaction between this protein and its receptors, LGR5 and RNF43. Thus, both in vitro and in silico analysis demonstrate the pathogenicity of the RSPO1 variant c.305G > A. In addition, in the index case, a higher expression of SOX9, corroborated by a reactive immunohistochemistry in testicular tissue, suggested that the process of sexual reversal in the XX individual is driven by a higher SOX9 expression...


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , beta Catenina , Expressão Gênica , Genética , Imuno-Histoquímica , Ceratodermia Palmar e Plantar , Modelos Moleculares , Processos de Determinação Sexual , Fatores de Transcrição SOX9 , Via de Sinalização Wnt
19.
An. bras. dermatol ; 89(6): 1005-1006, Nov-Dec/2014. graf
Artigo em Inglês | LILACS | ID: lil-727653

RESUMO

Costello syndrome (CS) is a rare genetic disorder, first described by Costello in 1971, caused by mutations in the HRAS proto-oncogene. Clinical findings include facial dysmorphism, skin disorders, cognitive impairment, cardiac and musculoskeletal defects. There is an increased risk of malignancies in these patients, due to the proto-oncogene mutation, and also sudden death secondary to heart disease. We report a case with characteristic phenotype, highlighting the peculiar skin changes.


Assuntos
Humanos , Feminino , Adulto Jovem , Anormalidades da Pele/patologia , Síndrome de Costello/patologia , Ceratodermia Palmar e Plantar/patologia , Fácies , Síndrome de Costello/complicações , Síndrome de Costello/fisiopatologia
20.
An. bras. dermatol ; 89(5): 819-821, Sep-Oct/2014. graf
Artigo em Inglês | LILACS | ID: lil-720792

RESUMO

Buschke-Fisher-Brauer keratoderma is a rare hereditary autosomal dominant disease of incomplete penetrance. Important differential diagnoses include other palmoplantar keratinization disorders, acquired or hereditary, which is done based on the histopathological findings. This diagnosis alerts especially about the possibility of associated neoplasms. Treatment involves topical keratolytic agents, usually with little efficacy, or with long-term systemic retinoids with follow-up of exuberant collateral effects.


Assuntos
Idoso , Humanos , Masculino , Ceratodermia Palmar e Plantar/patologia , Epiderme/patologia , Ceratose/patologia
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