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Head geometric morphometrics of two Chagas disease vectors from Venezuela

Zoological Systematics 2017年第1期42卷 65-70页

作者： ana Maria Oropeza Carlos Arturo Perri Fernanndez Jonathan Liria ana soto-vivas Escuela de Bioanalisis Facultad de Cieneias de la Salud Universidad de Carabobo Venezuela Universidad Regional Amazonica IKIAM km 7 via Muyuna Ecuador Centro de Esmdios en Zoologla Aplicada Facultad Experimental de Ciencias y Tecnologla Universidad de Carabobo Venezuela Centro de Estudios de Enfermedades Endkmicas y Salud Ambiental Institeto de Alto Estudios "Dr. Arnoldo Gabladon " Venezuela Carrera de Cs. Biologicas y Ambientales Facultad de Ciencias Biologicas Universidad Central del Ecuador Ecuador

Triatominae species are considered the main vectors of Chagas disease or American Trypanosomiasis. In Venezuela, the principal vectors are Rhodnius prolixus （Stal, 1959） and Triatoma maculata （Erichson, 1848）, which are belonged to the tribe Rhodniini and Triatomini, respectively. The head conformation and size development of these species can reflect ontogenetic changes which contribute with the vectors biology studies, as well to support of instars determination. The goal of the paper is to the application of geometric morphometric techniques for describing head conformation and size of instars of these species. We photographed 140 heads in R. prolixus： First instar （I： 16）, second instar （II： 17）, third instar （III： 18）, fourth instar （IV： 21）, fifth instar （V： 21）, adult female （F： 26） and adult males （M： 21）; in T. maculata heads of 136 specimens were photographed,I： 20, II： 17, III： 26, IV： 15, V： 19, F： 20 and M： 19. Landmark coordinate （x, y） configurations were registered and aligned by Generalized Procrustes analysis. Covariance analyses were implemented with proportions of re-classified groups and MANOVA. Statistical analyses of variance found not significant differences in head isometric size （Kruskal-Wallis） among IV and V instars in both species. The a posteriori re-classification was almost perfect in R. prolixus （82%） and T. maculata （86%）; the main head differences occurs in antenniferous tubercles, postocular and preocular. Our study using quantitative tools for describing the shape differences contributes to explain the morphology variability and development of Chagas disease vectors.

关键词： Instars Rhodniini Triatomini conformation centroid size.

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Sweet syndrome as a paraneoplastic manifestation of cholangiocarcinoma:A case report

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World Journal of Clinical Cases 2020年第18期8卷 4122-4127页

作者： Camille Carneiro Lemaire ana Luisa Carvalho Portilho Luciana V Pinheiro Rafael Alves vivas Maíra Britto Melaine Montenegro Luiz Felipe de Farias Rodrigues Sérgio Arruda AndréCastro Lyra Lourianne Nascimento Cavalcante Department of Internal Medicine Escola Bahiana de Medicina e Saúde PúblicaSalvador 40290-000BahiaBrazil Department of Internal Medicine Hospital Geral Roberto SantosSalvador 41180-780BahiaBrazil Department of Surgery Hospital Geral Roberto SantosSalvador 41180-780BahiaBrazil Department of Gastroenterology and Hepatology Hospital Geral Roberto SantosSalvador 41180-780BahiaBrazil Department of Radiology Hospital Geral Roberto SantosSalvador 41180-780BahiaBrazil Pathological anatomy Fiocruz-BahiaUniversidade Estadual da BahiaSalvador 40000-000BahiaBrazil Department of Medicine Division of Gastroenterology and HepatologyFederal University of Bahia and Gastro-Hepatology ServiceSalvador 40295-050BahiaBrazil Department of Medicine Division of Gastroenterology and HepatologyFederal University of Bahia and SED-CHD Hospital Geral Roberto SantosSalvador 40295-050BahiaBrazil

BACKGROUND Sweet’s syndrome,also known as acute febrile neutrophilic dermatosis,is a rare skin disorder that may be associated with cancer.CASE SUMMARY A 58-year-old female presented with a cholestatic syndrome and significant weight loss three months before admission.Five months earlier,she had abruptly developed skin lesions with erythematous papules that evolved to erythematous blisters.Clinical evaluation and laboratory tests confirmed hepatic cholangiocarcinoma.Skin lesions histopathological findings showed neutrophilic dermatosis,massive edema,fibrin,necrosis,and elastosis.These results,in association with the macroscopic aspects of the findings,led to the diagnosis of paraneoplastic Sweet’s syndrome due to cholangiocarcinoma.As staging was consistent with an advanced tumor without a cure perspective,we opted to perform percutaneous biliary drainage,and subsequently,palliative care.Eventually,after a few weeks,the patient died.CONCLUSION In conclusion,the diagnosis of the underlying disease-causing Sweet’s syndrome must be accurate,and patients need to be followed-up,as neoplasia such as cholangiocarcinoma may be a later manifestation.

关键词： Cholangiocarcinoma Paraneoplastic syndrome Sweet syndrome Case report Bullous lesions Cholestasis

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Lichen planus affecting a 12-year-old girl

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Open Journal of Stomatology 2012年第4期2卷 358-361页

作者： Natalie Kelner ana Paula vivas Rosana Morelatto Fabio Alves ACCamargo Hospital Sao PauloBrazil University of Sao Paulo Sao PauloBrazil National University of Cordoba CordobaBrazil

Lichen planus (LP) is a chronic inflammatory mucocutaneous condition which is relatively common in adults but rarely affects children. In addition, few cases with oral lesions affecting children have been reported in the literature. The purpose of this study is to report an unusual case of oral LP involving the tongue and buccal mucosa in a child. A 12-year-old girl complained of painless oral lesions with 18 months of evolution. On clinical evaluation, multiple white lesions in tongue and buccal mucosa were observed with no cutaneous lesions. Diagnosis was made based on clinical examination and histopathological features. No active treatment was necessary. The patient is currently under regular evaluation. Although rarely reported in childhood, lichen planus should be considered in a differential diagnosis of hyperkeratotic and/or reticular lesions of the oral mucosa in children.

关键词： Lichen Planus Oral Oral Diagnosis Child Diagnosis Differential

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