Topical steroid application can induce branched/reticular vessels in Bowen disease on the upper trunk.

We aimed to elucidate the dermoscopic vasculature of patients with Bowen Disease (BD) that was misdiagnosed as chronic eczema and had branched and/or reticular vessels after topical steroid application. The medical records of 19 patients with BD on the upper trunk were retrospectively reviewed for steroid use history, vascular structure observed in dermoscopy, and corresponding histological findings. Four patients treated with strong topical steroids showed remarkable branched and/or reticular vessels on dermoscopy.

Kerion celsi due to Arthroderma incurvatum infection in a Sri Lankan child: species identification and analysis of area-dependent genetic polymorphism.

A three-year-old Sri Lankan boy residing in Japan developed a nodule on his scalp after visiting Sri Lanka. Two months later, the lesion increased in size to 22 × 19 mm(2), and was identified as an erythematous nodule with alopecia. Direct examination of the infected hair shafts indicated fungal hyphae outside the shafts.

Lymphocutaneous type of nocardiosis caused by Nocardia vinacea in a patient with polymyositis.

We report a lymphocutaneous type of nocardiosis caused by Nocardia vinacea. A 62-year-old woman with polymyositis presented with some erythematous swellings and subcutaneous abscesses on her right middle finger and the dorsum of her hand, which had persisted for 2 weeks. Culturing of the excised nodule and pus revealed orange to orange-tan colonies with scanty whitish aerial mycelia.

Case of kerion celsi caused by Microsporum gypseum (Arthroderma gypseum ) in a child.

We report a case of kerion celsi caused by Microsporum gypseum and present some epidemiological statistics and a distribution of the mating types of M. gypseum . A 10-year-old healthy boy living in Narita, Chiba Prefecture, visited the Narita Red Cross Hospital in October 2004 with complaints of a scaly erythematous plaque and alopecia.