Collagen Fibers
Mostrando 1-12 de 276 artigos, teses e dissertações.
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1. Tacrolimus action pathways in an ointment base for hypertrophic scar prevention in a rabbit ear model
Abstract Background: Tacrolimus is used to prevent unaesthetic scars due to its action on fibroblast activity and collagen production modulation. Objectives: To evaluate the action pathways, from the histopathological point of view and in cytokine control, of tacrolimus ointment in the prevention of hypertrophic scars. Methods: Twenty-two rabbits were sub
An. Bras. Dermatol.. Publicado em: 2021-08
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2. Erratum on "Validation of the Skindex-17 quality of life assessment instrument for a Brazilian population"
Abstract Cutis rhomboidalis nuchae was assessed in a 65-year-old patient. Optical microscopy showed basophilic agglomerations in the reticular dermis with decreased elastic fibers. Trans- mission electron microscopy showed elongated, curved and fragmented structures, and in their interior the presence of electron-dense lumps was reduced and irregular, simila
An. Bras. Dermatol.. Publicado em: 2021-06
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3. Transmission and scanning electron microscopy of cutis rhomboidalis
Abstract Cutis rhomboidalis nuchae was assessed in a 65-year-old patient. Optical microscopy showed basophilic agglomerations in the reticular dermis with decreased elastic fibers. Trans- mission electron microscopy showed elongated, curved and fragmented structures, and in their interior the presence of electron-dense lumps was reduced and irregular, simila
An. Bras. Dermatol.. Publicado em: 2021-06
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4. Botulinum toxin-A: evaluation of the influence on the aspect of trunk scars
Abstract Cutis rhomboidalis nuchae was assessed in a 65-year-old patient. Optical microscopy showed basophilic agglomerations in the reticular dermis with decreased elastic fibers. Trans- mission electron microscopy showed elongated, curved and fragmented structures, and in their interior the presence of electron-dense lumps was reduced and irregular, simila
An. Bras. Dermatol.. Publicado em: 2021-06
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5. Randomized controlled study comparing the use of diphencyprone and anthralin in the treatment of extensive chronic alopecia areata
Abstract Cutis rhomboidalis nuchae was assessed in a 65-year-old patient. Optical microscopy showed basophilic agglomerations in the reticular dermis with decreased elastic fibers. Trans- mission electron microscopy showed elongated, curved and fragmented structures, and in their interior the presence of electron-dense lumps was reduced and irregular, simila
An. Bras. Dermatol.. Publicado em: 2021-06
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6. Profile of pediatric patients with myiasis treated at a tertiary hospital in Rio de Janeiro
Abstract Cutis rhomboidalis nuchae was assessed in a 65-year-old patient. Optical microscopy showed basophilic agglomerations in the reticular dermis with decreased elastic fibers. Trans- mission electron microscopy showed elongated, curved and fragmented structures, and in their interior the presence of electron-dense lumps was reduced and irregular, simila
An. Bras. Dermatol.. Publicado em: 2021-06
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7. Case for diagnosis. Infraorbital schwannoma
Abstract We report a 40-year-old man, with an unremarkable personal and family history, who presented for evaluation of an asymptomatic papule located on his right cheek. Histopathology revealed an encapsulated neoplasm within the dermis; composed by narrow, elongated, and wavy cells with an ill-defined cytoplasm, dense chromatin and tapered ends intersperse
An. Bras. Dermatol.. Publicado em: 2021-06
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8. Case-fatality and hospitalization rates for dermatological diseases in Brazil in the context of the COVID-19 pandemic
Abstract We report a 40-year-old man, with an unremarkable personal and family history, who presented for evaluation of an asymptomatic papule located on his right cheek. Histopathology revealed an encapsulated neoplasm within the dermis; composed by narrow, elongated, and wavy cells with an ill-defined cytoplasm, dense chromatin and tapered ends intersperse
An. Bras. Dermatol.. Publicado em: 2021-06
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9. Case for diagnosis. Hyperpigmented and excoriated papules and nodules in a diabetic patient,
Abstract Reactive perforating collagenosis is a rare perforating dermatosis clinically characterized by intensely pruritic hyperpigmented papules, plaques, and nodules with a central keratotic plug. Histopathology reveals transepidermal elimination of collagen fibers. Its pathophysiology is still under investigation, but the acquired form has been linked to
An. Bras. Dermatol.. Publicado em: 2020-12
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10. Multiple whitish papules on the posterior neck of an elderly woman,
Abstract White fibrous papulosis of the neck is a rare entity, with fewer than 50 cases described. It is a benign pathology whose main interest lies in its broad differential diagnosis, especially with pseudoxanthoma elasticum. The authors report the case of a 77-year-old woman with multiple yellow-white monomorphic papules on the posterior cervical region,
An. Bras. Dermatol.. Publicado em: 2020-02
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11. Enhancement of cellular activity in hyperglycemic mice dermal wounds dressed with chitosan-alginate membranes
The use of specially designed wound dressings could be an important alternative to facilitate the healing process of wounds in the hyperglycemic state. Biocompatible dressings combining chitosan and alginate can speed up wound healing by modulating the inflammatory phase, stimulating fibroblast proliferation, and aiding in remodeling phases. However, this bi
Braz J Med Biol Res. Publicado em: 2020-01
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12. Expression of stromal elements of prostatic adenocarcinoma in different gleason scores
Abstract Purpose: To quantify and compare the expression of stromal elements in prostate adenocarcinoma of different Gleason scores with non-tumor area (control). Methods: We obtained 132 specimens from samples of prostate peripheral and transition zone. We analyzed the following elements of the extracellular matrix: collagen fibers, elastic system, smooth
Acta Cir. Bras.. Publicado em: 13/12/2019