Nevi and cutaneous hamartomas in dogs: retrospective clinical and epidemiologic study of 81 cases

Loures, Fabrícia Hallack; Conceição, Lissandro Gonçalves

doi:10.1590/s0103-84782009000900022

Cited by 7 publications

(11 citation statements)

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“…No Brasil, a situação é semelhante àquela considerada na literatura internacional e há poucos relatos de hamartoma fibroanexial ou quaisquer um dos outros subtipos de hamartomas (LOURES; CONCEIÇÃO, 2009;MEDEIROS et al, 2014).…”

Section: Discussionunclassified

“…O hamartoma fibroanexial compreende em torno de 2,7% das lesões cutâneas em cães, a qual também pode ser chamada de displasia anexial focal, nevo anexial ou displasia fibroanexial e se assemelha ao hamartoma folículo-sebáceo cístico que ocorre em humanos (LIN; TSAI, 2000;SCOTT et al, 2001). Além deste, existem os hamartomas foliculares, colagenosos, sebáceos, apócrinos, lipofibromatoso, epidérmico e o fibroepitelial (GOLDSCHMIDT; SHOFER, 1992;SCOTT et al, 2001;GROSS et al, 2005;SIPOS et al, 2007;LOURES;CONCEIÇÃO, 2009;MEIRELES et al, 2013).…”

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Hamartoma Fibroanexial Em Cadela - Relato De Caso

Rodrigues¹,

Lopes²,

Matos³

et al. 2018

ArqVet

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A pele é o maior órgão do corpo do animal, atuando como uma barreira entre o meio externo e interno e suas afeccções perfazem a média de 30% de todo atendimento clínico realizado em pequenos animais. Dentre as lesões não neoplásicas, encontram-se os hamartomas, que são oriundos de um crescimento excessivo de células e tecidos normais no local em que naturalmente se encontram, podendo ocorrer em qualquer tecido ou órgão. O hamartoma fibroanexial pode se apresentar como nódulo solitário, firme, circunscrito, séssil ou de aspecto polipoide, com ou sem alopecia parcial e ulceração. Os anexos cutâneos que se destacam nesse tipo de hamartoma são os folículos pilosos e as glândulas sebáceas, podendo aparecer em aspectos normais ou bizarros, como os folículos pilosos císticos rodeados por lóbulos sebáceos. O objetivo do presente trabalho foirelatar um caso de hamartoma fibroanexial em uma cadela sem padrão racial definido, de aproximadamente sete anos que foi levada à Unidade Hospitalar Veterinária da Universidade Estadual do Ceará (UECE), devido à presença de nódulo em região distal lateral do membro pélvico direito com crescimento lento e progressivo durante um ano. A paciente foi encaminhada para exames complementares de citologia e pré-cirúrgicos. Após excisão cirúrgica, o nódulo foi enviado para avaliação histopatológica. Microscopicamente, a lesão exibiu uma estrutura nodular intradérmica composta por tecido fibroso abundante, envolvendo e segmentando estruturas anexiais incompletas, representadas por glândulas sebáceas e folículos pilosos, alguns destes rôtos, suscitando intenso processo inflamatório piogranulomatoso. Os achados macro e microscópicos foram determinantes para o diagnóstico da lesão como hamartoma fibroanexial.

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Hamartoma Fibroanexial Em Cadela - Relato De Caso

Rodrigues¹,

Lopes²,

Matos³

et al. 2018

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“…The age, breed, site predilections and recurrence rates have not been reported. Typically single and occasionally multiple, FHs present as skin nodules with tufts of thick, brush‐like hairs arising from dilated follicular ostia 1,2 . Distinctly large anagen hair follicles with normal orientation may be associated with an increase of dermal collagen 1,2 .…”

Section: Introductionmentioning

confidence: 99%

“…Typically single and occasionally multiple, FHs present as skin nodules with tufts of thick, brush‐like hairs arising from dilated follicular ostia 1,2 . Distinctly large anagen hair follicles with normal orientation may be associated with an increase of dermal collagen 1,2 . Mildly dysplastic and tortuous folliculosebaceous units may be observed.…”

Section: Introductionmentioning

confidence: 99%

Locally extensive follicular hamartomas with concurrent follicular cysts and dermoid cysts on the head of a dog

Schuldenfrei

Affolter

Outerbridge

et al. 2022

Veterinary Dermatology

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“…Large breed dogs, particularly Labrador Retriever, Weimaraner, Dalmatian and Doberman Pinscher, appear to be predisposed (GOLDSCHMIDT & SHOFER, 1992). Loures et al There are few retrospective studies about FH in dogs (GOLDSCHMIDT & SHOFER, 1992;LOURES & CONCEIÇÃO, 2009), which did not describe histopathological findings in detail. Therefore, this paper describes both epidemiological and histopathological findings in 102 cases of canine FH.…”

Section: Introductionmentioning

confidence: 99%

Fibroadnexal hamartoma in the dog: retrospective epidemiological and histopathological study of 102 cases

2019

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Fibroadnexal hamartoma (FH), also called focal adnexal dysplasia, is the most common hamartomatous lesion in dogs. There are few retrospective studies about FH in dogs, which did not describe histopathological findings in detail. The main objective was to conduct a retrospective study and to describe the epidemiological and histopathological characteristics of a series of 102 FH cases in dogs. Descriptive statistics and Odds Ratio were used to analyze the data. The lesions were exophytic and measured on average 2.5 cm in diameter. The anatomic sites most affected were the limbs and digital region. The animals were on average 7 years of age and both sexes were equally affected. Doberman (OR: 4.15; P=0.0069) and Schnauzer (OR: 2.50; P=0.049) showed a higher risk for FH. Recurrence was not observed in any case. Four histopathological FH subtypes were identified: follicle-sebaceous (73.53%), sebaceous (16.66%), follicular (8.82%) and sebaceous-apocrine (0.98%). Diffuse and perianexial fibroplasia and inflammation were frequently seen. Chronic inflammation and mature adipocytes were seen in 71.6% and 7.8% of the cases, respectively.

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Nevi and cutaneous hamartomas in dogs: retrospective clinical and epidemiologic study of 81 cases

Abstract: In a period of eight years, nevic lesions were diagnosed in 81 cases. Fibroadnexal hamartoma (FH) occurred in 53 animals (65.4%), and it was clinically characterized by

Cited by 7 publications

References 5 publications

Hamartoma Fibroanexial Em Cadela - Relato De Caso

Hamartoma Fibroanexial Em Cadela - Relato De Caso

Locally extensive follicular hamartomas with concurrent follicular cysts and dermoid cysts on the head of a dog

Fibroadnexal hamartoma in the dog: retrospective epidemiological and histopathological study of 102 cases

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