RESUMO
Dermatofibromas are benign skin lesions that consist of pigmented papules or nodules. They produce the dimple sign when laterally squeezed and are usually found on the legs. These clinical features lead to the diagnosis in most cases. However, the differential diagnosis with other lesions, such as atypical nevi and melanoma can be difficult, and the dermoscopy may help the diagnosis. There are several dermoscopic patterns associated with dermatofibromas, the most common being a central white scar like patch with delicate pigment network at the periphery. This article describes the case of a patient who had eleven clinically similar dermatofibromas, with four distinct patterns when submitted to dermoscopic examination.
RESUMO
Norwegian scabies is a highly contagious skin infestation caused by an ectoparasite, Scarcoptes scabiei var. Hominis, which mainly affects immunosuppressed individuals. Clinically, it may simulate various dermatoses such as psoriasis, Darier's disease, seborrheic dermatitis, among others. This is a case report of a 33-year-old woman, immunocompetent, diagnosed with generalized anxiety disorder (cancer phobia), who had erythematous, well-defined plaques, covered with rupioid crusts, on her neck, axillary folds, breast, periumbilical region, groin area, besides upper back and elbows, mimicking an extremely rare variant of psoriasis, denominated rupioid psoriasis.
Assuntos
Psoríase/diagnóstico , Escabiose/diagnóstico , Adulto , Diagnóstico Diferencial , Feminino , Humanos , Hospedeiro Imunocomprometido , Escabiose/patologia , Índice de Gravidade de DoençaRESUMO
Norwegian scabies is a highly contagious skin infestation caused by an ectoparasite, Scarcoptes scabiei var. Hominis, which mainly affects immunosuppressed individuals. Clinically, it may simulate various dermatoses such as psoriasis, Darier's disease, seborrheic dermatitis, among others. This is a case report of a 33-year-old woman, immunocompetent, diagnosed with generalized anxiety disorder (cancer phobia), who had erythematous, well-defined plaques, covered with rupioid crusts, on her neck, axillary folds, breast, periumbilical region, groin area, besides upper back and elbows, mimicking an extremely rare variant of psoriasis, denominated rupioid psoriasis.
A sarna norueguesa é uma infestação cutânea altamente contagiosa causada pelo ectoparasita Sarcoptes scabiei var. hominis, que atinge principalmente indivíduos imunossuprimidos. Clinicamente, pode simular várias dermatoses, tais como psoríase, doença de Darier, dermatite seborréica, entre outras. O artigo relata o caso de uma mulher de 33 anos, imunocompetente, porém com diagnóstico de transtorno de ansiedade generalizada e cancerofobia, que apresentava placas bem delimitadas, sobre base eritematosa, recobertas por crostas rupioides, nas regiões cervical, axilar, mamária, umbilical, inguinal, além de dorso superior e cotovelos, mimetizando uma variante extremamente rara de psoríase, denominada psoríase rupioide.