A Case of Atrophic Dermatofibrosarcoma Protuberans

Atrophic dermatofibrosarcoma protuberans (DFSP) is a rare variant of DFSP, which presents as a depressed scar-like lesion with atrophic patch. Although atrophic DFSP is identical to classical DFSP in biologic and histologic features, such atrophic lesions can be difficult to diagnose clinically. Better knowledge of atrophic DFSP is important for making an early diagnosis and for proper surgical treatment. We report the case of a 33-year-old female presented with a gray depressed atrophic patch with a skin-colored, pea-sized nodule on the left lateral rim, and an erythematous indurated plaque on her upper back. Histopathologically, the atrophic patch showed densely packed, monomorphous, plump spindle cells arranged in a storiform pattern, infiltrating the dermis and subcutaneous tissue, producing a characteristic honeycomb pattern. The tumor cells exhibited strong and diffuse positivity with CD34, establishing the diagnosis of DFSP.

A Case of Dyshidrosiform Pemphigoid / 대한피부과학회지

Several clinical variants of bullous pemphigoid have been described (e.g. generalized, vesicular, nodular, polymorphic, vegetans, and localized). Dyshidrosiform pemphigoid is an unusual form of the localized variant of bullous pemphigoid, and was first described in 1979. It presents with a localized, persistent, vesicobullous eruption similar to dyshidrosiform dermatitis. Herein, we report a case of dyshidrosiform pemphigoid which presented with bullae localized to both the palms and soles.

Congenital Divided Nevus of the Eyelid / 대한피부과학회지

Divided nevus of the eyelids is a rare form of congenital melanocytic nevus that involves the upper and lower eyelids of one eye. About 34 cases in both children and adults at present have been reported, but no case of divided nevus of the eyelids has previously been reported in the literature so far in Korea. A 12-year-old girl presented with a congenital divided nevus of the upper and lower lid. The histology of the pigmented plaque on the lower lid was confirmed to be that of a benign compound nevus. We, herein, report a case of divided nevus of the eyelids.

Clinical Features of Atopic Dermatitis in Urban and Rural Areas / 대한피부과학회지

BACKGROUND: The prevalence of atopic dermatitis (AD) has increased in recent decades. Although the genetic predisposition to this disease has been implicated, environmental factors may play a critical role in the disease expression. OBJECTIVE: We investigated the prevalence of AD symptoms and the effects of suspected environmental factors in rural and urban areas of Gyeonggi Province in Korea. METHODS: This study was carried out among 210 patients with AD. We asked them to fill out a questionnaire covering their clinical manifestations, environment and lifestyle. The severity of AD was evaluated using the SCORAD index and the factors affecting the severity of the disease were determined. RESULTS: There were statistical differences in the SCORAD index between rural and urban residents (p<0.05). The SCORAD index of the rural residents was higher than that of urban residents. There were statistical differences in the frequency of applying moisturizer in five minutes after bathing between rural and urban residents (p<0.05). CONCLUSION: These results suggest that the management of disease is more important than environmental factors in the severity of atopic dermatitis.

A Case of Poroid Hidradenoma / 대한피부과학회지

Poroid hidradenoma is a benign tumor with eccrine differentiation. It is a recently described variant of a group of neoplasms known as poromas. This neoplasm shows architectural characteristics of hidradenoma (tumor cells confined within the dermis in both solid and cystic components) and cytologic characteristics of poroid neoplasm (poroid and cuticular cells). We herein report a case of poroid hidradenoma in a 51-year-old woman who presented with a solitary, bluish, tender nodule on the lateral aspect of her right thigh.