Our findings suggest a more important role of CD8+ granzyme B-containing cells in LDE group, being its synthesis associated with more intense apoptosis. So, LP and LDE may have a somewhat distinct pathogenesis.
Numerous studies were published over the last 50 years to investigate whether diet is associated with the etiology of acne. Although older studies well known by dermatologists that refute the association between acne and diet exist, their scientific foundation is weak. New articles have recently brought to light evidence contrary to previous findings. Therefore, we would like to investigate whether diet, directly or indirectly, influences one or more of the four fundamental etiopathogenic pillars of acne: (1) hyperproliferation of basal keratinocytes, (2) increase of sebaceous production, (3) colonization by Propionibacterium acnes, and (4) inflammation. Keywords: Acne vulgaris; Diet; Glycemic index Resumo: Nos últimos 50 anos, foram publicados inúmeros estudos com a finalidade de comprovar se a dieta está relacionada à etiologia da acne. Embora existam estudos antigos, que são bem difundidos entre os dermatologistas e negam a associação entre acne e dieta, seu delineamento científico é pobre. Recentemente, novos artigos demonstraram evidências contrárias às publicações anteriores. Sendo assim, os autores realizaram esta revisão bibliográfica com o intuito de averiguar se a dieta influencia direta ou indiretamente um ou mais dos quatro pilares etiopatogênicos fundamentais da acne: (1) hiperproliferação dos queratinócitos basais, (2) aumento da produção sebácea, (3) colonização pelo Propionibacterium acnes e (4) inflamação.
Our results confirm increased expression of granzyme B and perforin in oral LP lesions as compared to cutaneous LP. The increased expression suggests a relationship with the clinical behavior of the disease.
A twenty-six-year-old woman with a two-year history of an erythematous, scaly lesion on the left nipple was being followed up by her gynecologist and treated using a topical corticoid for chronic eczema albeit with no improvement. She was referred to this department where a diagnosis of Paget's disease of the breast associated with a ductal carcinoma in situ was made. Paget's disease is uncommon prior to the fourth decade of life and the great majority of cases are associated with breast carcinomas. Differential diagnosis must be made between this condition and nipple eczema. As shown in the present case report, late diagnosis results in poor prognosis and higher morbidity since mutilating procedures then become necessary. Keywords: Breast tumors; Paget's disease, breast; pathology.Resumo: Mulher, 26 anos, com história de lesão eritêmato-escamosa no mamilo esquerdo, há dois anos. Era acompanhada pelo seu ginecologista como eczema crônico em uso de corticoide tópico, sem melhora. Encaminhada ao nosso serviço, realizou-se o diagnóstico de doença de Paget mamária associada ao carcinoma intraductal. Antes da quarta década de vida, a doença de Paget é rara, e, na grande maioria dos casos, está associada ao carcinoma mamário. Essa enfermidade constitui diagnóstico diferencial obrigatório do eczema do mamilo. O diagnóstico tardio, como no caso relatado, implica em pior prognóstico e aumento da morbidade, já que terapêutica mutilante é necessária. Palavras-chave: Doença de Paget mamária; Neoplasias da mama; Patologia
Tattoos are defined as the intentional or accidental deposit of pigment into the skin. These pigments have been associated with various dermatoses such as allergic contact dermatitis, lichenoid dermatitis, photoinduced reactions, and granulomatous, sarcoid and pseudolymphomatous reactions. The objective of this report was to describe the various types of reactions to pigments and the importance of recognizing them clinically. Two cases are reported: one of lichenoid dermatitis resulting from a reaction to the red pigment of a tattoo and the other of a pseudolymphoma resulting from a reaction to red and lilac pigments and a photo-induced reaction to a yellow pigment. Removal generally requires multiple forms of treatment, most of which fail to remove the colors completely. Keywords: Coloring agents; Skin manifestations; TattooingResumo: A tatuagem é definida como deposição de pigmento intencional ou acidental na pele. Os pigmentos têm sido associados a diversas dermatoses, como a dermatite de contato alérgica, a dermatite liquenoide e as reações fotoinduzidas, granulomatosas, sarcoídeas e pseudolinfomatosas. Enfocam-se os diversos tipos de reações aos pigmentos e a importância de reconhecê-los clinicamente. São relatados dois casos: um de dermatite liquenoide sobre o pigmento vermelho e outro de pseudolinfoma sobre os pigmentos vermelho e lilás e de reação fotoinduzida sobre o amarelo. A remoção geralmente requer múltiplos tratamentos, e a maioria não retira as cores completamente.
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