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Pesquisa : C04.557.470.700.040 [Categoria DeCS]
Referências encontradas : 16 [refinar]
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Alves, Ana Paula Negreiros Nunes
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Id: biblio-887579
Autor: Dantas, Thinali Sousa; Nascimento, Isabelly Vidal do; Verde, Maria Elisa Quezado Lima; Alves, Ana Paula Negreiros Nunes; Sousa, Fabrício Bitu; Mota, Mário Rogério Lima.
Título: Multifocal oral melanoacanthoma associated with Addison's disease and hyperthyroidism: a case report
Fonte: Arch. endocrinol. metab. (Online);61(4):403-407, July-Aug. 2017. graf.
Idioma: en.
Resumo: SUMMARY Oral melanoacanthoma is a mucocutaneous, pigmented, rare, benign, and probably reactive lesion. This paper reports for the first time in the literature a case of multifocal oral melanoacanthoma in a patient diagnosed with Addison's disease and concomitant Graves' disease with hyperthyroidism. The patient presented with oral pigmented lesions, which were hypothesized to be mucosal pigmentation associated with Addison's disease. Due to their unusual clinical pattern, these oral lesions were biopsied and diagnosed as oral melanoacanthoma on histopathology and immunohistochemistry for HMB-45. At the moment of this report, the patient was being treated for her systemic conditions, but the lesions had not regressed. Reactive hyperpigmentation of the skin and mucous membranes may be found in Addison's disease and hyperthyroidism. This case reinforces the hypothesis of a reactive nature for oral melanoacanthoma and highlights the need for investigation of endocrine disorders in patients with multifocal oral melanoacanthoma.
Descritores: Neoplasias Cutâneas/patologia
Neoplasias Bucais/patologia
Acantoma/patologia
-Neoplasias Cutâneas/complicações
Neoplasias Cutâneas/diagnóstico
Biópsia
Neoplasias Bucais/complicações
Neoplasias Bucais/diagnóstico
Doença de Addison/complicações
Doença de Graves/complicações
Hiperpigmentação/diagnóstico
Hiperpigmentação/etiologia
Acantoma/complicações
Acantoma/diagnóstico
Limites: Humanos
Feminino
Pessoa de Meia-Idade
Tipo de Publ: Relatos de Casos
Responsável: BR1.1 - BIREME


  2 / 16 LILACS  
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Id: biblio-1054880
Autor: Porto, Ana Carolina Souza; Blumetti, Tatiana Pinto; Macedo, Mariana Petaccia de; Braga, Juliana Casagrande Tavoloni.
Título: Melanoacanthoma: a potential pitfall of reflectance confocal microscopy
Fonte: An. bras. dermatol;94(6):747-750, Nov.-Dec. 2019. graf.
Idioma: en.
Resumo: Abstract Melanoacanthoma is a rare variant of seborrheic keratosis, which is notable for dark pigmentation and fast radial growth, making it difficult to distinguish from melanoma. Histologically, it is characterized by proliferation of keratinocytes and dendritic melanocytes. The authors report a scalp lesion, fast growing, suspected by dermoscopy and confocal microscopy examination, with dendritic cells distributed throughout the lesion. Based on these findings, it was not possible to classify this lesion as clearly benign, so it was excised. Histopathologic evaluation and immunostain were consistent with melanoacanthoma.
Descritores: Dermatoses do Couro Cabeludo/patologia
Neoplasias Cutâneas/patologia
Ceratose Seborreica/patologia
Acantoma/patologia
-Células Dendríticas/patologia
Microscopia Confocal/métodos
Dermoscopia
Melanócitos/patologia
Limites: Humanos
Masculino
Idoso
Tipo de Publ: Relatos de Casos
Responsável: BR1.1 - BIREME


  3 / 16 LILACS  
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Id: biblio-887056
Autor: González-Guerra, Elena; Rodriguez, Jorge Ruiz; Casado, Alejandro Fueyo; Taboada, Alberto Conde; Toro, Jose Antonio Cortes; Bran, Eduardo Lopez.
Título: Bilateral clear cell acanthoma of the areola and nipple: good response to topical corticosteroids
Fonte: An. bras. dermatol;92(5,supl.1):27-29, 2017. graf.
Idioma: en.
Resumo: Abstract: Clear cell acanthoma is a rare, epidermal tumor not common in the area of the nipples; indeed, the literature describes only 8 cases, all showing unilateral presentation. We here report the first case of bilateral clear cell acanthoma with good response to topical corticosteroids. Case report: A sixteen-year old girl presented with 2 excrescent, fleshy, and exudative tumor masses in both nipples and areola mammae. A biopsy was conducted and confirmed clear cell acanthoma histopathologically. Treatment with strong corticosteroids resulted in rapid improvement and resolution. After one year of follow-up, the patient developed atopic dermatitis. Discussion: We describe the first case of bilateral clear cell acanthoma localized in the nipple/areola that resolved with powerful corticosteroids, suggesting a reactive etiology of the lesion.
Descritores: Neoplasias Cutâneas/patologia
Neoplasias Cutâneas/tratamento farmacológico
Clobetasol/administração & dosagem
Acantoma/patologia
Acantoma/tratamento farmacológico
Glucocorticoides/administração & dosagem
Neoplasias Primárias Múltiplas/patologia
Neoplasias Primárias Múltiplas/tratamento farmacológico
Mamilos/patologia
-Biópsia
Administração Tópica
Resultado do Tratamento
Limites: Humanos
Feminino
Adolescente
Tipo de Publ: Relatos de Casos
Responsável: BR1.1 - BIREME


  4 / 16 LILACS  
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Id: biblio-887094
Autor: Espinosa, Ana Elena Domínguez; Akay, Bengu Nisa; González-Ramírez, Roger Adrian.
Título: "String of pearls pattern": report of three cases of non clear-cell acanthoma
Fonte: An. bras. dermatol;92(5,supl.1):142-144, 2017. graf.
Idioma: en.
Resumo: Abstract The coiled and dotted vessels in a serpiginous arrangement or "string of pearls" is considered a classical vascular pattern associated with clear cell acanthoma. We present three cases of epidermal tumors different from clear cell acanthoma that have the same "string of pearls" vascular pattern. Even though most authors keep considering the "string of pearls" vascular pattern an almost pathognomonic sign of clear-cell acanthoma, the cases presented here suggest that some other epidermal tumors can also show this pattern.
Descritores: Ceratose Seborreica/patologia
Ceratose/patologia
Líquen Plano/patologia
-Neoplasias Cutâneas/patologia
Acantoma/patologia
Dermoscopia
Diagnóstico Diferencial
Epiderme/patologia
Limites: Humanos
Masculino
Feminino
Pessoa de Meia-Idade
Idoso
Tipo de Publ: Relatos de Casos
Responsável: BR1.1 - BIREME


  5 / 16 LILACS  
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Id: biblio-949888
Autor: Cunha, Daniela Gomes; Kassuga-Roisman, Luiza Erthal de Britto Pereira; Silveira, Luisa Kelmer Côrtes de Barros; Macedo, Fabiane Carvalho de.
Título: Dermoscopic features of clear cell acanthoma
Fonte: An. bras. dermatol;93(3):449-450, May-June 2018. graf.
Idioma: en.
Resumo: Abstract: Clear cell acanthoma is an uncommon type of benign epithelial tumor. Typically, it is a solitary lesion found on the lower limbs. It presents as a nodule or small plaque with slow and well-defined growth. Diagnosis used to be clinical and histopathological, but the advent of dermoscopy has led to an increase in diagnostic accuracy. We describe a case in which dermoscopy proved highly useful for diagnosis of the lesion.
Descritores: Neoplasias Cutâneas/diagnóstico
Acantoma/diagnóstico
Dermoscopia
-Neoplasias Cutâneas/patologia
Acantoma/patologia
Diagnóstico Diferencial
Perna (Membro)
Limites: Humanos
Masculino
Pessoa de Meia-Idade
Tipo de Publ: Relatos de Casos
Responsável: BR1.1 - BIREME


  6 / 16 LILACS  
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Id: biblio-1001138
Autor: d'Almeida, Luiza Ferreira Vieira; Jeunon, Thiago; Leverone, Andreia Pizarro; Nakamura, Robertha.
Título: Onychocytic matricoma
Fonte: An. bras. dermatol;94(2):214-216, Mar.-Apr. 2019. tab, graf.
Idioma: en.
Resumo: Abstract Onychocytic matricoma is a newly described tumor of the nail matrix. Clinically, it presents with localized thickening of the nail plate and melanonychia. Histologically, it represents a benign acanthoma of onychocytes. There are 8 cases reported in the literature. A 12-year-old girl presented with localized melanonychia and concurrent thickening of the nail plate restricted to the area of pigmentation affecting the right thumb, with no history of trauma or pain. We report a case of this rare tumor occurring in late childhood and provide a comprehensive review of its clinical presentation and differential diagnosis. Both clinicians and dermatopathologists should be aware of the presentation of onychocytic matricoma and include it in their scope of diagnosis of longitudinal nail bands.
Descritores: Neoplasias Cutâneas/patologia
Acantoma/patologia
Doenças da Unha/patologia
-Neoplasias Cutâneas/cirurgia
Polegar
Diagnóstico Diferencial
Doenças da Unha/cirurgia
Limites: Humanos
Feminino
Criança
Tipo de Publ: Relatos de Casos
Revisão
Responsável: BR1.1 - BIREME


  7 / 16 LILACS  
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Id: lil-769529
Autor: Tellechea, Oscar; Cardoso, José Carlos; Reis, José Pedro; Ramos, Leonor; Gameiro, Ana Rita; Coutinho, Inês; Baptista, António Poiares.
Título: Benign follicular tumors
Fonte: An. bras. dermatol;90(6):780-798, Nov.-Dec. 2015. tab, graf.
Idioma: en.
Resumo: Abstract: Benign follicular tumors comprise a large and heterogeneous group of neoplasms that share a common histogenesis and display morphological features resembling one or several portions of the normal hair follicle, or recapitulate part of its embryological development. Most cases present it as clinically nondescript single lesions and essentially of dermatological relevance. Occasionally, however, these lesions be multiple and represent a cutaneous marker of complex syndromes associated with an increased risk of visceral neoplasms. In this article, the authors present the microscopic structure of the normal hair follicle as a basis to understand the type and level of differentiation of the various follicular tumors. The main clinicopathological features and differential diagnosis of benign follicular tumors are then discussed, including dilated pore of Winer, pilar sheath acanthoma, trichoadenoma, trichilemmoma, infundibuloma, proliferating trichilemmal cyst/tumor, trichoblastoma and its variants, pilomatricoma, trichodiscoma/fibrofolliculoma, neurofollicular hamartoma and trichofolliculoma. In addition, the main syndromes presenting with multiple follicular tumors are also discussed, namely Cowden, Birt-Hogg-Dubé, Rombo and Bazex-Dupré-Christol syndromes, as well as multiple tumors of follicular infundibulum (infundibulomatosis) and multiple trichoepitheliomas. Although the diagnosis of follicular tumors relies on histological examination, we highlight the importance of their knowledge for the clinician, especially when in presence of patients with multiple lesions that may be the cutaneous marker of a cancer-prone syndrome. The dermatologist is therefore in a privileged position to recognize these lesions, which is extremely important to provide further propedeutic, appropriate referral and genetic counseling for these patients.
Descritores: Neoplasias Cutâneas/patologia
Folículo Piloso/patologia
Doenças do Cabelo/patologia
-Neoplasias Cutâneas/classificação
Síndrome
Cisto Folicular/patologia
Adenoma/patologia
Neoplasia de Células Basais/patologia
Acantoma/patologia
Diagnóstico Diferencial
Doenças do Cabelo/classificação
Limites: Humanos
Masculino
Feminino
Tipo de Publ: Revisão
Responsável: BR1.1 - BIREME


  8 / 16 LILACS  
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Cucé, Luiz Carlos
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Id: biblio-837958
Autor: Braga, Bruna Backsmann; Michalany, Alexandre Ozores; Oliveira Filho, Jayme de; Cucé, Luiz Carlos.
Título: Plasmoacanthoma
Fonte: An. bras. dermatol;91(5,supl.1):128-130, Sept.-Oct. 2016. graf.
Idioma: en.
Resumo: Abstract Plasmoacanthoma is an extremely rare verrucous tumor located on periorificial regions characterized by dense dermal plasmacytic infiltrates. Some authors classify it as a form of reactive plasma cell proliferation which represents a heterogeneous spectrum of mucocutaneous disorders. These plasma cell proliferations have been considered to be a benign immunologic inflammatory reaction to known or unknown stimuli. However, the etiology of plasmoacanthoma remains highly speculative. We report the case of a 40-year-old woman who presented with a lobulated warty lesion affecting the lower lip. Biopsy from the lesion was compatible with plasmoacanthoma, which remains an underreported disease in the dermatology literature.
Descritores: Neoplasias Cutâneas/patologia
Neoplasias Labiais/patologia
Acantoma/patologia
Mucosa Bucal/patologia
-Plasmócitos/patologia
Biópsia
Imuno-Histoquímica
Derme/patologia
Proliferação de Células
Lábio/patologia
Limites: Humanos
Feminino
Adulto
Tipo de Publ: Relatos de Casos
Responsável: BR1.1 - BIREME


  9 / 16 LILACS  
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Id: biblio-1015617
Autor: Torres-Gómez, Francisco Javier; Fernández-Machín, Pilar; Cantalejo-Rodríguez, Carolina.
Título: Acantoma de células claras abdominal. Lesión infrecuente en localización atípica / Abdominal clear cell acantoma. Uncommon lesion in atypical location
Fonte: ARS med. (Santiago, En línea);41(1):23-27, 2016. ilus.
Idioma: es.
Resumo: Introducción. El acantoma de células claras es una lesión tumoral benigna relativamente infrecuente que muestra unas características histológicas que permiten su diagnóstico. Método. Presentamos el caso de un acantoma de células claras abdominal, localización infrecuente, en un paciente de 72 años. Resultado. El diagnóstico fue establecido tras el pertinente estudio histológico pues la clínica inespecífica y la localización atípica impedían la realización de un correcto juicio clínico. Conclusiones. Pretendemos con la presentación del presente caso poner de manifiesto la histología tan peculiar de esta lesión al tiempo que, a través de una amplia revisión bibliográfica, mostramos distintas localizaciones y presentaciones atípicas de dicha entidad.(AU)

Introduction. Clear cell acanthoma is a relatively rare benign tumoral lesion showing histological features that allow diagnosis. Method. We report the case of abdominal clear cell acanthoma, unusual location in a patient of 72 years. Results. The diagnosis was established after the relevant histological study as nonspecific clinical and atypical location prevented the realization of a proper clinical trial. Conclusions. We intend with the presentation of this case highlight the peculiar histology of this lesion while, through an extensive literature review, we show different locations and atypical presentations of this entity.(AU)
Descritores: Acantoma
-Ferimentos e Lesões
Glicogênio
Limites: Humanos
Feminino
Idoso
Tipo de Publ: Estudo Clínico
Responsável: CL10.1 - Biblioteca Biomédica


  10 / 16 LILACS  
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Id: biblio-997848
Autor: Pérez-Cotapos S, María Luisa; Gajardo G, Constanza; Apt D, Patricia; González B, Sergio.
Título: Cual es su diagnóstico? / What is your diagnosis?
Fonte: Rev. chil. dermatol;29(3):288-290, 2013. ilus.
Idioma: es.
Descritores: Neoplasias Cutâneas/diagnóstico
Neoplasias Cutâneas/patologia
Acantoma/diagnóstico
Acantoma/patologia
-Diagnóstico Diferencial
Limites: Humanos
Responsável: CL1.1 - Biblioteca Central



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