ABSTRACT
Actinic prurigo (AP) is an idiopathic photodermatosis; the initial manifestations usually occur during the first decades of life but can appear at any age. Cases are usually diagnosed late once the lesions have exacerbated; due to the extensive involvement of the vermilion border and the etiology, it has been confused with and related to a potentially malignant process. Syndecan-1 and E-cadherin were positive in the epidermis, with moderate-to-intense staining in 100% of samples. Ki67 and MCM3 were expressed in the lower third of the epidermis and showed greater immunolabeling in samples that contained lymphoid follicles (Ki 67: epidermis [17.7% ± 6.79%] and dermis [7.73% ± 6.69%]; MCM3: epidermis [22.92% ± 10.12%] and dermis [6.13% ± 6.27%]). In conclusión AP is a disease in which there is no evidence that the lesions are potentially cancerous. AP cheilitis should not be confused with actinic cheilitis because they are separate entities.
ABSTRACT
El vitiligo y la psoriasis se observan con frecuencia en la consulta dermatológica; sin embargo, pese a su alta prevalencia, no es frecuente que ambas se encuentren en un mismo paciente. Presentamos los casos de tres pacientes que exhiben esta situación y realizamos una revisión de la literatura, en cuanto a los aspectos fisiopatogénicos comunes, que podrían contribuir a generar la coexistencia de estas entidades.
Vitiligo and psoriasis are commonly seen in the dermatology clinic; yet, despite their high prevalence, it is infrequent to find them together in the same patient. We report three cases exhibiting this situation and we do a literature review regarding common pathophysiologic aspects that could generate the coexistence of these entities.