Summary: | To report a case of Norwegian scabies diagnosed with the aid of dermoscopy. A 78-year-old man suffered from generalized papules, papulovesicles and nodules with pruritus for 2 years. Patient had been repeatedly diagnosed as eczema or nodular prurigo or urticaria. Topical antihistamines and glucocorticoids only slightly improved lesions, but not pruritus. Dermatological examination showed dense papules, papulovesicles and nodules on the trunk and limbs, especially on the elbows, armpits, buttocks and thighs. Some lesions were covered with scales. Chaffy scales were present on the hands, fingers/toe gaps and buttocks, with fishy odour smell. Dermoscopy showed white burrows in appearance of delta-wing jet. Mites and secretion were observed in the burrows along with triangular structure on the other end of the burrows. A diagnosis of Norwegian scabies was made. Pruritus and skin lesions were significantly improved after 2-week twice-daily treatment with topical 25% sulfur ointment plus desonide cream in addition to oral epinastine capsule and decoction of Chinese medicine. No recurrence was observed during a 2-month follow-up.
|