2020
DOI: 10.1111/jdv.17010
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Reactive granulomatous dermatitis as a histological pattern including manifestations of interstitial granulomatous dermatitis and palisaded neutrophilic and granulomatous dermatitis: a study of 52 patients

Abstract: Background Confusion exists regarding interstitial granulomatous dermatitis (IGD) and palisaded neutrophilic and granulomatous dermatitis (PNGD). Objective To determine whether IGD and PNGD are two different entities, or whether they must be considered as two subtypes of the same reactive pattern, and thus whether the unification of the nomenclature is necessary. Methods Observational retrospective multicentre study of patients with IGD and PNGD evaluated between 1999 and 2019 and review of their clinical and … Show more

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Cited by 22 publications
(54 citation statements)
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References 23 publications
(55 reference statements)
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“…6 One of our patients with this feature had a history of autoimmune diseases, which are known to be associated with IGD. 58 IGD classically presents as symmetric erythematous to violaceous plaques affecting the superolateral trunk, proximal upper extremities, and medial thighs. 59,60 Although sole involvement of intertriginous sites is uncommon, IGD has occasionally been reported to involve the buttocks and symmetric intertriginous areas.…”
Section: Discussionmentioning
confidence: 99%
“…6 One of our patients with this feature had a history of autoimmune diseases, which are known to be associated with IGD. 58 IGD classically presents as symmetric erythematous to violaceous plaques affecting the superolateral trunk, proximal upper extremities, and medial thighs. 59,60 Although sole involvement of intertriginous sites is uncommon, IGD has occasionally been reported to involve the buttocks and symmetric intertriginous areas.…”
Section: Discussionmentioning
confidence: 99%
“…Aunque la patogenia exacta de esta enfermedad aún se desconoce, se ha sugerido que, debido a una patología autoinmunitaria de base, ciertos inmunocomplejos se depositan en los vasos dérmicos, desencadenando una serie de eventos como liberación de quimiocinas y de factor de necrosis tumoral. A su vez, esto conllevaría procesos de inflamación, daño del colágeno e infiltrado granulomatoso en la dermis intersticial y perivascular 10 . Por lo tanto, el proceso comienza como una vasculitis leucocitoclástica que luego progresa a la degeneración del colágeno seguida de inflamación crónica y fibrosis.…”
Section: Discussionunclassified
“…Clínicamente, la DGNP se caracteriza por lesiones polimórficas y heterogéneas, como máculas, placas (eritematosas de configuración anular) y nódulos de distribución simétrica en el tronco, las extremidades, los codos y la región proximal e interna de los brazos. Dentro de los síntomas asociados se describen artralgias y prurito, y en general el tiempo entre el diagnóstico de la patología de base y la presentación de las lesiones es menor de 1 año 10 .…”
Section: Discussionunclassified
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