Sarna Norueguesa em paciente portadora de Síndrome de Sézary: relato de caso.

Abstract

Norwegian mange is a rare form of Scabies caused by infestation of the mite Sarcoptes scabiei var. hominis characterized by the large number of parasites. It is seen in patients with immune system deficits such as T-cell lymphoma, leprosy, acquired immunodeficiency syndrome, graft versus host disease and use of immunosuppressants. Manifestations are thick, scaly, grayish crusts that go beyond Hebra’s circle, in the palmoplantar, subungual and scalp regions. Dermoscopy has high sensitivity for identifying parasitosis. There are a variety of diseases that make a differential diagnosis with CS, such as psoriasis, genodermatosis, seborrheic dermatitis, Darier disease and Sézay syndrome (SS), which need to be excluded. The aim of the study is to report a patient with a previous history of SS, with erythroderma associated with disseminated crusted and pruritic lesions, with suspected recurrence of the disease. In dermoscopy, excavated grooves and delta-wing triangles, corresponding to the parasite, were observed. The difficulty in diagnosing CS was discussed, due to the context of previous SS, erythroderma and intense pruritus as uncommon manifestation and the importance of dermoscopic findings for elucidation. It is concluded that immunosuppression favored the emergence of CS and that dermoscopy is an excellent diagnostic tool.